IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
512K x36 and 1024K x18 18Mb, FLOW THROUGH 'NO WAIT' STATE
BUS SYNCHRONOUS SRAM
JUNE 2015
FEATURES
• 100 percent bus utilization
• No wait cycles between Read and Write
• Internal self-timed write cycle
• Individual Byte Write Control
• Single R/W (Read/Write) control pin
• Clock controlled, registered address, data and
control
• Interleaved or linear burst sequence control
using MODE input
• Three chip enables for simple depth
expansion and address pipelining
• Power Down mode
• Common data inputs and data outputs
• /CKE pin to enable clock and suspend
operation
• JEDEC 100-pin QFP, 165-ball BGA and 119ball BGA packages
• Power supply:
NLF: VDD 3.3V (± 5%), VDDQ 3.3V/2.5V (± 5%)
NVF: VDD 2.5V (± 5%), VDDQ 2.5V (± 5%)
NVVF: VDD 1.8V (± 5%), VDDQ 1.8V (± 5%)
• JTAG Boundary Scan for BGA packages
• Commercial, Industrial and Automotive
temperature support
• Lead-free available
• For leaded option, please contact ISSI.
FAST ACCESS TIME
Symbol
tKQ
tKC
Parameter
Clock Access
Time
Cycle time
-6.5
-7.5
Units
6.5
7.5
ns
7.5
8.5
ns
Frequency
133
117
MHz
DESCRIPTION
The 18Meg product family features high-speed,
low-power synchronous static RAMs designed to
provide a burstable, high-performance, 'no wait'
state, device for networking and communications
applications. They are organized as 512K words
by 36 bits and 1024K words by 18 bits, fabricated
with ISSI's advanced CMOS technology.
Incorporating a 'no wait' state feature, wait cycles
are eliminated when the bus switches from read
to write, or write to read. This device integrates a
2-bit burst counter, high-speed SRAM core, and
high-drive capability outputs into a single
monolithic circuit.
All synchronous inputs pass through registers are
controlled by a positive-edge-triggered single
clock input. Operations may be suspended and all
synchronous inputs ignored when Clock Enable,
/CKE is HIGH. In this state the internal device will
hold their previous values.
All Read, Write and Deselect cycles are initiated
by the ADV input. When the ADV is HIGH the
internal burst counter is incremented. New
external addresses can be loaded when ADV is
LOW.
Write cycles are internally self-timed and are
initiated by the rising edge of the clock inputs and
when /WE is LOW. Separate byte enables allow
individual bytes to be written.
A burst mode pin (MODE) defines the order of the
burst sequence. When tied HIGH, the interleaved
burst sequence is selected. When tied LOW, the
linear burst sequence is selected.
Copyright © 2015 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no
liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on
any published information and before placing orders for products.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause
failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written
assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
1
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102436B/IS61NVVF102418B
BLOCK DIAGRAM
(X = a, b, c,d
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
2
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102436B/IS61NVVF102418B
PIN CONFIGURATION
512K x 36, 165-Ball BGA (Top View)
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
1
2
3
4
5
6
7
8
9
10
11
NC
NC
DQPc
DQc
DQc
DQc
DQc
NC
DQd
DQd
DQd
DQd
DQPd
NC
MODE
A
A
NC
DQc
DQc
DQc
DQc
NC
DQd
DQd
DQd
DQd
NC
NC
NC
/CE
CE2
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
NC
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
A
A
/BWc
/BWd
VSS
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VSS
A
A
/BWb
/BWa
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
NC
TDI
TMS
/CE2
CLK
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
NC
A1*
A0*
/CKE
/WE
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
NC
TDO
TCK
ADV
/OE
VSS
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VSS
A
A
A
A
A
A
NC
DQb
DQb
DQb
DQb
NC
DQa
DQa
DQa
DQa
NC
A
A
NC
NC
DQPb
DQb
DQb
DQb
DQb
ZZ
DQa
DQa
DQa
DQa
DQPa
NC
A
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
NC
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
A
A
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.
PIN DESCRIPTIONS
Symbol
CLK
/CKE
A0,A1
A
ADV
MODE
/CE,CE2,/CE2
/WE
Bottom View
165-Ball, 13 mm x 15mm BGA
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
/BWx (x=a-d)
/OE
DQx
DQPx
TCK,TDI,
TDO,TMS
ZZ
NC
VDD
VDDQ
VSS
Pin Name
Synchronous Clock
Clock Enable
Synchronous Burst Address Inputs
Address Inputs
Synchronous Burst Address
Advance/Load
Burst Sequence Selection
Synchronous Chip Enable
Synchronous Read/Write Control
Input
Synchronous Byte Write Inputs
Output Enable
Data Inputs/Outputs
Parity Data I/O
JTAG Pins
Power Sleep Mode
No Connect
Power Supply
I/O Power Supply
Ground
3
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102436B/IS61NVVF102418B
512K x 32, 165-Ball BGA (Top View)
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
1
2
3
4
5
6
7
8
9
10
11
NC
NC
NC
DQc
DQc
DQc
DQc
NC
DQd
DQd
DQd
DQd
NC
NC
MODE
A
A
NC
DQc
DQc
DQc
DQc
NC
DQd
DQd
DQd
DQd
NC
NC
NC
/CE
CE2
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
NC
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
A
A
/BWc
/BWd
VSS
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VSS
A
A
/BWb
/BWa
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
NC
TDI
TMS
/CE2
CLK
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
NC
A1*
A0*
/CKE
/WE
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
NC
TDO
TCK
ADV
/OE
VSS
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VSS
A
A
A
A
A
A
NC
DQb
DQb
DQb
DQb
NC
DQa
DQa
DQa
DQa
NC
A
A
NC
NC
NC
DQb
DQb
DQb
DQb
ZZ
DQa
DQa
DQa
DQa
NC
NC
A
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
NC
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
A
A
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.
PIN DESCRIPTIONS
Symbol
CLK
/CKE
A0,A1
A
ADV
MODE
/CE,CE2,/CE2
/WE
Bottom View
165-Ball, 13 mm x 15mm BGA
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
/BWx (x=a-d)
/OE
DQx
TCK,TDI,
TDO,TMS
ZZ
NC
VDD
VDDQ
VSS
Pin Name
Synchronous Clock
Clock Enable
Synchronous Burst Address Inputs
Address Inputs
Synchronous Burst Address
Advance/Load
Burst Sequence Selection
Synchronous Chip Enable
Synchronous Read/Write Control
Input
Synchronous Byte Write Inputs
Output Enable
Data Inputs/Outputs
JTAG Pins
Power Sleep Mode
No Connect
Power Supply
I/O Power Supply
Ground
4
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102436B/IS61NVVF102418B
1024K x 18, 165-Ball BGA (Top View)
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
1
2
3
4
5
6
7
8
9
10
11
NC
NC
NC
NC
NC
NC
NC
NC
DQb
DQb
DQb
DQb
DQPb
NC
MODE
A
A
NC
DQb
DQb
DQb
DQb
NC
NC
NC
NC
NC
NC
NC
NC
/CE
CE2
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
NC
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
A
A
/BWb
NC
VSS
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VSS
A
A
NC
/BWa
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
NC
TDI
TMS
/CE2
CLK
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
NC
A1*
A0*
/CKE
/WE
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
NC
TDO
TCK
ADV
/OE
VSS
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VSS
A
A
A
A
A
A
NC
NC
NC
NC
NC
NC
DQa
DQa
DQa
DQa
NC
A
A
A
NC
DQPa
DQa
DQa
DQa
DQa
ZZ
NC
NC
NC
NC
NC
NC
A
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
NC
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
A
A
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.
PIN DESCRIPTIONS
Symbol
CLK
/CKE
A0,A1
A
ADV
MODE
/CE,CE2,/CE2
/WE
Bottom View
165-Ball, 13 mm x 15mm BGA
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
/BWx (x=a-b)
/OE
DQx
DQPx
TCK,TDI,
TDO,TMS
ZZ
NC
VDD
VDDQ
VSS
Pin Name
Synchronous Clock
Clock Enable
Synchronous Burst Address Inputs
Address Inputs
Synchronous Burst Address
Advance/Load
Burst Sequence Selection
Synchronous Chip Enable
Synchronous Read/Write Control
Input
Synchronous Byte Write Inputs
Output Enable
Data Inputs/Outputs
Parity Data I/O
JTAG Pins
Power Sleep Mode
No Connect
Power Supply
I/O Power Supply
Ground
5
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102436B/IS61NVVF102418B
512K x 36, 119-Ball BGA (Top View)
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
1
2
3
4
5
6
7
VDDQ
NC
NC
DQc
DQc
VDDQ
DQc
DQc
VDDQ
DQd
DQd
VDDQ
DQd
DQd
NC
NC
VDDQ
A
CE2
A
DQPc
DQc
DQc
DQc
DQc
VDD
DQd
DQd
DQd
DQd
DQPd
A
NC
TMS
A
A
A
VSS
VSS
VSS
/BWc
VSS
NC
VSS
/BWd
VSS
VSS
VSS
MODE
A
TDI
A
ADV
VDD
NC
/CE
/OE
A
/WE
VDD
CLK
NC
/CKE
A1*
A0*
VDD
A
TCK
A
A
A
VSS
VSS
VSS
/BWb
VSS
NC
VSS
/BWa
VSS
VSS
VSS
NC
A
TDO
A
/CE2
A
DQPb
DQb
DQb
DQb
DQb
VDD
DQa
DQa
DQa
DQa
DQPa
A
NC
NC
VDDQ
NC
NC
DQb
DQb
VDDQ
DQb
DQb
VDDQ
DQa
DQa
VDDQ
DQa
DQa
NC
ZZ
VDDQ
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.
PIN DESCRIPTIONS
Symbol
CLK
/CKE
A0,A1
A
ADV
MODE
/CE,CE2,/CE2
/WE
Bottom View
119-Ball, 14 mm x 22 mm BGA
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
/BWx (x=a-d)
/OE
DQx
DQPx
TCK,TDI,
TDO,TMS
ZZ
NC
VDD
VDDQ
VSS
Pin Name
Synchronous Clock
Clock Enable
Synchronous Burst Address Inputs
Address Inputs
Synchronous Burst Address
Advance/Load
Burst Sequence Selection
Synchronous Chip Enable
Synchronous Read/Write Control
Input
Synchronous Byte Write Inputs
Output Enable
Data Inputs/Outputs
Parity Data I/O
JTAG Pins
Power Sleep Mode
No Connect
Power Supply
I/O Power Supply
Ground
6
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102436B/IS61NVVF102418B
512K x 32, 119-Ball BGA (Top View)
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
1
2
3
4
5
6
7
VDDQ
NC
NC
DQc
DQc
VDDQ
DQc
DQc
VDDQ
DQd
DQd
VDDQ
DQd
DQd
NC
NC
VDDQ
A
CE2
A
NC
DQc
DQc
DQc
DQc
VDD
DQd
DQd
DQd
DQd
NC
A
NC
TMS
A
A
A
VSS
VSS
VSS
/BWc
VSS
NC
VSS
/BWd
VSS
VSS
VSS
MODE
A
TDI
A
ADV
VDD
NC
/CE
/OE
A
/WE
VDD
CLK
NC
/CKE
A1*
A0*
VDD
A
TCK
A
A
A
VSS
VSS
VSS
/BWb
VSS
NC
VSS
/BWa
VSS
VSS
VSS
NC
A
TDO
A
/CE2
A
NC
DQb
DQb
DQb
DQb
VDD
DQa
DQa
DQa
DQa
NC
A
NC
NC
VDDQ
NC
NC
DQb
DQb
VDDQ
DQb
DQb
VDDQ
DQa
DQa
VDDQ
DQa
DQa
NC
ZZ
VDDQ
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.
PIN DESCRIPTIONS
Symbol
CLK
/CKE
A0,A1
A
ADV
MODE
/CE,CE2,/CE2
/WE
Bottom View
119-Ball, 14 mm x 22 mm BGA
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
/BWx (x=a-d)
/OE
DQx
TCK,TDI,
TDO,TMS
ZZ
NC
VDD
VDDQ
VSS
Pin Name
Synchronous Clock
Clock Enable
Synchronous Burst Address Inputs
Address Inputs
Synchronous Burst Address
Advance/Load
Burst Sequence Selection
Synchronous Chip Enable
Synchronous Read/Write Control
Input
Synchronous Byte Write Inputs
Output Enable
Data Inputs/Outputs
JTAG Pins
Power Sleep Mode
No Connect
Power Supply
I/O Power Supply
Ground
7
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
1024K x 18, 119-Ball BGA (Top View)
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
1
2
3
4
5
6
7
VDDQ
NC
NC
DQb
NC
VDDQ
NC
DQb
VDDQ
NC
DQb
VDDQ
DQb
NC
NC
NC
VDDQ
A
CE2
A
NC
DQb
NC
DQb
NC
VDD
DQb
NC
DQb
NC
DQPb
A
A
TMS
A
A
A
VSS
VSS
VSS
/BWb
VSS
NC
VSS
NC
VSS
VSS
VSS
MODE
A
TDI
A
ADV
VDD
NC
/CE
/OE
A
/WE
VDD
CLK
NC
/CKE
A1*
A0*
VDD
NC
TCK
A
A
A
VSS
VSS
VSS
NC
VSS
NC
VSS
/BWa
VSS
VSS
VSS
NC
A
TDO
A
/CE2
A
DQPa
NC
DQa
NC
DQa
VDD
NC
DQa
NC
DQa
NC
A
A
NC
VDDQ
NC
NC
NC
DQa
VDDQ
DQa
NC
VDDQ
DQa
NC
VDDQ
NC
DQa
NC
ZZ
VDDQ
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.
PIN DESCRIPTIONS
Symbol
CLK
/CKE
A0,A1
A
ADV
MODE
/CE,CE2,/CE2
/WE
Bottom View
119-Ball, 14 mm x 22 mm BGA
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
/BWx (x=a-b)
/OE
DQx
DQPx
TCK,TDI,
TDO,TMS
ZZ
NC
VDD
VDDQ
VSS
Pin Name
Synchronous Clock
Clock Enable
Synchronous Burst Address Inputs
Address Inputs
Synchronous Burst Address
Advance/Load
Burst Sequence Selection
Synchronous Chip Enable
Synchronous Read/Write Control
Input
Synchronous Byte Write Inputs
Output Enable
Data Inputs/Outputs
Parity Data I/O
JTAG Pins
Power Sleep Mode
No Connect
Power Supply
I/O Power Supply
Ground
8
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
A
A
/CE
CE2
/BWd
/BWc
/BWb
/BWa
/CE2
VDD
VSS
CLK
/WE
/CKE
/OE
ADV
A
A
A
A
512K x 36, 100PIN QFP (Top View)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
512K x 36
DQPb
DQb
DQb
VDDQ
VSS
DQb
DQb
DQb
DQb
VSS
VDDQ
DQb
DQb
VSS
NC
VDD
ZZ
DQa
DQa
VDDQ
VSS
DQa
DQa
DQa
DQa
VSS
VDDQ
DQa
DQa
DQPa
MODE
A
A
A
A
A1
A0
NC
NC
VSS
VDD
NC
NC
A
A
A
A
A
A
A
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
DQPc
DQc
DQc
VDDQ
VSS
DQc
DQc
DQc
DQc
VSS
VDDQ
DQc
DQc
NC
VDD
NC
VSS
DQd
DQd
VDDQ
VSS
DQd
DQd
DQd
DQd
VSS
VDDQ
DQd
DQd
DQPd
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.
PIN DESCRIPTIONS
Symbol
A
A0,A1
ADV
/WE
CLK
/CKE
/CE,CE2,/CE2
/BWx (x=a-d)
/OE
Pin Name
Address Inputs
Synchronous Burst Address Inputs
Synchronous Burst Address
Advance/Load
Synchronous Read/Write Control Input
Synchronous Clock
Clock Enable
Synchronous Chip Enable
Synchronous Byte Write Inputs
Output Enable
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
Symbol
ZZ
MODE
Pin Name
Power Sleep Mode
Burst Sequence Selection
VDD
Power Supply
NC
DQx
DQPx
VDDQ
VSS
No Connect
Data Inputs/Outputs
Parity Data I/O; NC for x32 option
I/O Power Supply
Ground
9
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
A
A
/CE
CE2
/BWd
/BWc
/BWb
/BWa
/CE2
VDD
VSS
CLK
/WE
/CKE
/OE
ADV
A
A
A
A
512K x 32, 100PIN QFP (Top View)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
512K x 32
NC
DQb
DQb
VDDQ
VSS
DQb
DQb
DQb
DQb
VSS
VDDQ
DQb
DQb
VSS
NC
VDD
ZZ
DQa
DQa
VDDQ
VSS
DQa
DQa
DQa
DQa
VSS
VDDQ
DQa
DQa
NC
MODE
A
A
A
A
A1
A0
NC
NC
VSS
VDD
NC
NC
A
A
A
A
A
A
A
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
NC
DQc
DQc
VDDQ
VSS
DQc
DQc
DQc
DQc
VSS
VDDQ
DQc
DQc
NC
VDD
NC
VSS
DQd
DQd
VDDQ
VSS
DQd
DQd
DQd
DQd
VSS
VDDQ
DQd
DQd
NC
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.
PIN DESCRIPTIONS
Symbol
A
A0,A1
ADV
/WE
CLK
/CKE
/CE,CE2,/CE2
/BWx (x=a-d)
/OE
Pin Name
Address Inputs
Synchronous Burst Address Inputs
Synchronous Burst Address
Advance/Load
Synchronous Read/Write Control Input
Synchronous Clock
Clock Enable
Synchronous Chip Enable
Synchronous Byte Write Inputs
Output Enable
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
Symbol
ZZ
MODE
Pin Name
Power Sleep Mode
Burst Sequence Selection
VDD
Power Supply
NC
DQx
DQPx
VDDQ
VSS
No Connect
Data Inputs/Outputs
Parity Data I/O; NC for x32 option
I/O Power Supply
Ground
10
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
A
A
/CE
CE2
NC
NC
/BWb
/BWa
/CE2
VDD
VSS
CLK
/WE
/CKE
/OE
ADV
A
A
A
A
1024K x 18, 100PIN QFP (Top View)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
1024K x 18
A
NC
NC
VDDQ
VSS
NC
DQPa
DQa
DQa
VSS
VDDQ
DQa
DQa
VSS
NC
VDD
ZZ
DQa
DQa
VDDQ
VSS
DQa
DQa
NC
NC
VSS
VDDQ
NC
NC
NC
MODE
A
A
A
A
A1
A0
NC
NC
VSS
VDD
NC
NC
A
A
A
A
A
A
A
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
NC
NC
NC
VDDQ
VSS
NC
NC
DQb
DQb
VSS
VDDQ
DQb
DQb
NC
VDD
NC
VSS
DQb
DQb
VDDQ
VSS
DQb
DQb
DQPb
NC
VSS
VDDQ
NC
NC
NC
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.
PIN DESCRIPTIONS
Symbol
A
A0,A1
ADV
/WE
CLK
/CKE
/CE,CE2,/CE2
/BWx (x=a-b)
/OE
Pin Name
Address Inputs
Synchronous Burst Address Inputs
Synchronous Burst Address
Advance/Load
Synchronous Read/Write Control Input
Synchronous Clock
Clock Enable
Synchronous Chip Enable
Synchronous Byte Write Inputs
Output Enable
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
Symbol
ZZ
MODE
Pin Name
Power Sleep Mode
Burst Sequence Selection
VDD
Power Supply
NC
DQx
DQPx
VDDQ
VSS
No Connect
Data Inputs/Outputs
Parity Data I/O
I/O Power Supply
Ground
11
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
STATE DIAGRAM
READ
WRITE
BEGIN
READ
READ
READ
BURST
DS
READ
WRITE
DESELECT
BURST
BURST
READ
BEGIN
WRITE
DS
WRITE
BURST
DS
BURST
DS
DS
WRITE
WRITE
BURST
WRITE
BURST
READ
TRUTH TABLE
SYNCHRONOUS TRUTH TABLE
Operation
Address Used
Not Selected
N/A
Not Selected
N/A
Not Selected
N/A
Not Selected Continue
N/A
Begin Burst Read
External Address
Continue Burst Read
Next Address
NOP/Dummy Read
External Address
Dummy Read
Next Address
Begin Burst Write
External Address
Continue Burst Write
Next Address
NOP/Write Abort
N/A
Write Abort
Next Address
Ignore Clock
Current Address
/CE
H
X
X
X
L
X
L
X
L
X
L
X
X
CE2
X
L
X
X
H
X
H
X
H
X
H
X
X
/CE2
X
X
H
X
L
X
L
X
L
X
L
X
X
ADV
L
L
L
H
L
H
L
H
L
H
L
H
X
/WE
X
X
X
X
H
X
H
X
L
X
L
X
X
/BWx
X
X
X
X
X
X
X
X
L
L
H
H
X
/OE
X
X
X
X
L
L
H
H
X
X
X
X
X
/CKE
L
L
L
L
L
L
L
L
L
L
L
L
H
CLK
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
Notes:
1.
"X" means don't care.
2.
The rising edge of clock is symbolized by ↑
3.
A continue deselect cycle can only be entered if a deselect cycle is executed first.
4. /WE = L means Write operation in Write Truth Table.
5. /WE = H means Read operation in Write Truth Table.
6. Operation finally depends on status of asynchronous pins (ZZ and /OE).
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
12
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
ASYNCHRONOUS TRUTH TABLE
Operation
Sleep Mode
ZZ
H
L
L
L
L
Read
Write
Deselected
/OE
X
L
H
X
X
I/O STATUS
High-Z
DQ
High-Z
Din, High-Z
High-Z
Notes:
1.
X means "Don't Care".
2.
For write cycles following read cycles, the output buffers must be disabled with /OE, otherwise data bus contention will occur.
3. Sleep Mode means power Sleep Mode where stand-by current does not depend on cycle time.
4. Deselected means power Sleep Mode where stand-by current depends on cycle time.
WRITE TRUTH TABLE (x18)
Operation
READ
WRITE BYTE a
WRITE BYTE b
WRITE ALL BYTEs
WRITE ABORT/NOP
/WE
H
L
L
L
L
/BWa
X
L
H
L
H
/BWb
X
H
L
L
H
Notes:
1.
X means "Don't Care".
2.
All inputs in this table must beet setup and hold time around the rising edge of CLK.
WRITE TRUTH TABLE (x36)
Operation
READ
WRITE BYTE a
WRITE BYTE b
WRITE BYTE c
WRITE BYTE d
WRITE ALL BYTEs
WRITE ABORT/NOP
/WE
H
L
L
L
L
L
L
/BWa
X
L
H
H
H
L
H
/BWb
X
H
L
H
H
L
H
/BWc
X
H
H
L
H
L
H
/BWd
X
H
H
H
L
L
H
Notes:
1.
X means "Don't Care".
2.
All inputs in this table must beet setup and hold time around the rising edge of CLK.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
13
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
ADDRESS SEQUENCE IN BURST MODE
INTERLEAVED BURST ADDRESS TABLE (MODE = VDD or NC)
External Address
1st Burst Address
2nd Burst Address
A1 A0
A1 A0
A1 A0
00
01
10
01
00
11
10
11
00
11
10
01
3rd Burst Address
A1 A0
11
10
01
00
LINEAR BURST ADDRESS TABLE (MODE = Vss )
0,0
A1', A0' = 1,1
0,1
1,0
Power Up Sequence
VDDQ → VDD1 → I/O Pins2
Notes:
1. VDD can be applied at the same time as VDDQ
2. Applying I/O inputs is recommended after VDDQ is stable. The inputs of the I/O pins can be applied at the same time as
I/O pins) is lower than VDDQ.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
VDDQ as long as Vih (level of
14
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
ABSOLUTE MAXIMUM RATINGS AND OPERATING RANGE
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter
Tstg
Storage Temperature
Pd
Power Dissipation
Iout
Output Current (per I/O)
Vin, Vout Voltage Relative to Vss for I/O Pins
Vin
Voltage Relative to Vss for Address and Control
Inputs
NLF Value
–65 to +150
1.6
20
–0.5 to VDD+0.3
–0.3 to VDD+0.5
NVF/NVVF Value
–65 to +150
1.6
20
–0.5 to VDDQ + 0.3
–0.3 to VDDQ + 0.3
Unit
°C
W
mA
V
V
Notes:
1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect reliability.
2. This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields; however, precautions may be taken to
avoid application of any voltage higher than maximum rated voltages to this high-impedance circuit.
3. This device contains circuitry that will ensure the output devices are in High-Z at power up.
OPERATING RANGE (IS61NLFx)
Range
Ambient Temperature
Commercial
0°C to +70°C
Industrial
-40°C to +85°C
Automotive
-40°C to +125°C
VDD
VDDQ
3.3V ± 5%
3.3V ± 5%
3.3V ± 5%
3.3V / 2.5V ± 5%
3.3V / 2.5V ± 5%
3.3V / 2.5V ± 5%
VDD
VDDQ
OPERATING RANGE (IS61NVFx)
Range
Commercial
Industrial
Ambient Temperature
0°C to +70°C
-40°C to +85°C
Automotive
OPERATING RANGE (IS61NVVFx)
Range
Ambient Temperature
Commercial
0°C to +70°C
Industrial
-40°C to +85°C
Automotive
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
2.5V ± 5%
2.5V ± 5%
*Please contact ISSI
2.5V ± 5%
2.5V ± 5%
VDD
VDDQ
1.8V ± 5%
1.8V ± 5%
1.8V ± 5%
1.8V ± 5%
*Please contact ISSI
15
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
CHARACTERISTICS
DC ELECTRICAL CHARACTERISTICS (Over operating temperature range)
Symbol
Voh
Vol
Vih
Vil
Ili
Ilo
Parameter
Output HIGH
Voltage
Output LOW
Voltage
Input HIGH
Voltage
Input LOW
Voltage
Input
Leakage
Current
Output
Leakage
Current
Test Conditions
Ioh=-4.0 mA(3.3V)
Ioh=–1.0 mA(2.5V,1.8V)
Iol=8.0 mA(3.3V)
Iol=1.0 mA(2.5V,1.8V)
3.3V
Min.
Max.
2.5V
Min.
Max.
1.8V
Min.
Max.
VDDQ
—
-0.4
Unit
2.4
—
2.0
—
—
0.4
—
0.4
—
2.0
VDD
+0.3
1.7
VDD
+0.3
0.7* VDD
–0.3
0.8
–0.3
0.7
–0.3
Vss≤Vin≤ VDD
–1
1
–1
1
–1
1
μA
Vss≤Vout≤ VDDQ,/OE=Vih
–1
1
–1
1
–1
1
μA
V
0.4
V
VDD
+0.3
0.3*
VDD
V
V
Notes:
1. All voltages referenced to ground.
2. Overshoot:
3.3V and 2.5V: Vih (AC) ≤ VDD + 1.5V (Pulse width less than tkc /2)
1.8V: Vih (AC) ≤ VDD + 0.5V (Pulse width less than tkc /2)
3. Undershoot:
3.3V and 2.5V: Vil (AC) ≥ -1.5V (Pulse width less than tkc /2)
1.8V: Vil (AC) ≥ -0.5V (Pulse width less than tkc /2)
4. MODE pin has an internal pull-up and should be tied to VDD or Vss . It exhibits ±100μA maximum leakage current when tied to ≤Vss+0.2V or ≥ VDD –
0.2V.
5. ZZ pin has an internal pull-down and should be tied to VDD or Vss . It exhibits ±100μA maximum leakage current when tied to ≤Vss+0.2V or ≥ VDD–0.2V.
POWER SUPPLY CHARACTERISTICS (Over Operating Range)
Symbol
Icc
Isb
Isb1
Com.
Ind.
-6.5
Max
x18
x36
240
240
260
260
-7.5
Max
x18
x36
190
190
210
210
Device Deselected, VDD = Max.,All Inputs ≤ Vil
or ≥ Vih,ZZ ≤ Vil, f = Max.
Com.
80
80
70
70
Ind.
90
90
80
80
Device Deselected, VDD = Max.,Vin ≤ Vss +
0.2V or ≥ VDD – 0.2V,f = 0
Com.
60
60
60
60
Ind.
70
70
70
70
Parameter
Test Conditions
Temp.
range
AC Operating,
Supply Current
Standby
Current TTL
Input
Standby
Current CMOS
Input
Device Selected, OE = Vih, ZZ ≤ Vil,All Inputs
≤ 0.2V or ≥ VDD – 0.2V,Cycle Time ≥ tkc min.
Unit
mA
mA
mA
Note:
1.
Power-up assumes a linear ramp from 0V to VDD (min) within 200ms. During this time Vih < VDD and VDDQ < VDD
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
16
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
CAPACITANCE
Symbol
Cin
Cout
Parameter
Input Capacitance
Input/Output Capacitance
Conditions
Vin = 0V
Vout = 0V
Max.
6
8
Unit
pF
pF
Notes:
1. Tested initially and after any design or process changes that may affect these parameters.
2. Test conditions: Ta = 25°C, f = 1 MHz, VDD = 3.3V.
READ/WRITE CYCLE SWITCHING CHARACTERISTICS (Over Operating Range)
-6.5
-7.5
Symbol
Parameter
Min.
Max.
Min.
Max.
fmax
Clock Frequency
—
133
—
117
tkc
Cycle Time
7.5
—
8.5
—
tkh
Clock High Time
2.2
—
2.5
—
tkl
Clock Low Time
2.2
—
2.5
—
tkq
Clock Access Time
—
6.5
—
7.5
tkqx(2)
Clock High to Output Invalid
2.5
—
2.5
—
tkqlz(2,3)
Clock High to Output Low-Z
2.5
—
2.5
—
tkqhz(2,3)
Clock High to Output High-Z
—
3.8
—
4.0
toeq
Output Enable to Output Valid
—
3.2
—
3.4
toelz(2,3)
Output Enable to Output Low-Z
0
—
0
—
toehz(2,3)
Output Disable to Output High-Z
—
3.5
—
3.5
tas
Address Setup Time
1.5
—
1.5
—
tws
Read/Write Setup Time
1.5
—
1.5
—
tces
Chip Enable Setup Time
1.5
—
1.5
—
tse
Clock Enable Setup Time
1.5
—
1.5
—
tadvs
Address Advance Setup Time
1.5
—
1.5
—
tds
Data Setup Time
1.5
—
1.5
—
tah
Address Hold Time
0.5
—
0.5
—
the
Clock Enable Hold Time
0.5
—
0.5
—
twh
Write Hold Time
0.5
—
0.5
—
tceh
Chip Enable Hold Time
0.5
—
0.5
—
tadvh
Address Advance Hold Time
0.5
—
0.5
—
tdh
Data Hold Time
0.5
—
0.5
—
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes:
1. Configuration signal MODE is static and must not change during normal operation.
2. Guaranteed but not 100% tested. This parameter is periodically sampled.
3. Tested with load in Figure 2.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
17
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
3.3V I/O AC TEST CONDITIONS
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing and Reference Level
VTT
VLOAD
R1, R2
Output Load
Unit
0V to 3.0V
1.5 ns
1.5V
1.5V
3.3V
317Ω, 351Ω
See Figures 1 and 2
2.5V I/O AC TEST CONDITIONS
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing and Reference Level
VTT
VLOAD
R1, R2
Output Load
Unit
0V to 2.5V
1.5 ns
1.25V
1.25V
2.5V
1667Ω, 1538Ω
See Figures 1 and 2
1.8V I/O AC TEST CONDITIONS
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing and Reference Level
VTT
VLOAD
R1, R2
Output Load
Unit
0V to 1.8V
1.5 ns
0.9V
0.9V
1.8V
1KΩ, 1KΩ
See Figures 1 and 2
I/O OUTPUT LOAD EQUIVALENT
R1
VLOAD
OUTPUT
ZO=50Ω
OUTPUT
50Ω
R2
5 pF
Including
jig and
scope
VTT
Figure1
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
Figure2
18
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
READ CYCLE TIMING
tKH tKL
CLK
tKC
tADVS tADVH
ADV
tAS tAH
Address
A2
A1
A3
tWS tWH
/WRITE
tSE tHE
/CKE
tCES tCEH
/CE
/OE
tOEQ
tOEHZ
Data Out
Q1-1
tOEHZ
tKQX
Q2-1
tKQ
Q2-2
tKQHZ
Q2-3
Q2-4
Q3-1
NOTES: /WRITE = L means /WE = L and /BWX =L
/CE = L means /CE1 = L, CE2 = H and /CE2 = L
/CE = H means /CE1 = H, or /CE1 = L and /CE2 = H, or /CE1 = L and CE2 = L
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
Q3-2
Q3-3
Q3-4
Don't Care
Undefined
19
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
WRITE CYCLE TIMING
tKH tKL
CLK
tKC
ADV
Address
A1
A2
A3
/WRITE
tSE tHE
/CKE
/CE
/OE
tDS tDH
Data In
D1-1
D2-1
D2-2
D2-3
D2-4
D3-1
D3-2
D3-3
D3-4
tOEHZ
Data Out
Q0-4
NOTES: /WRITE = L means /WE = L and /BWX = L
/CE = L means /CE1 = L, CE2 = H and /CE2 = L
/CE = H means /CE1= H, or /CE1 = L and /CE2 = H, or /CE1 = L and CE2 = L
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
Don't Care
Undefined
20
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
SINGLE READ/WRITE CYCLE TIMING
tKH tKL
CLK
tSE tHE
tKC
CKE
Address
A1
A2
A3
A4
A5
A6
A7
A8
A9
/WRITE
/CE
ADV
/OE
tOEQ
Data Out
tOELZ
Q1
Q3
Q4
Q6
Q7
tDS tDH
Data In
D2
D5
NOTES: /WRITE = L means /WE = L and /BWX = L
/CE = L means /CE1 = L, CE2 = H and /CE2 = L
/CE = H means /CE1= H, or /CE1 = L and /CE2 = H, or /CE1 = L and CE2 = L
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
Don't Care
Undefined
21
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
/CKE OPERATION TIMING
tKH tKL
CLK
tSE tHE
tKC
CKE
Address
A1
A2
A3
A4
A5
A6
/WRITE
/CE
ADV
/OE
tKQ
Data Out
tKQHZ
tKQLZ
Q1
Q3
Q4
tDS tDH
Data In
D2
NOTES: /WRITE = L means /WE = L and /BWX = L
/CE = L means /CE1 = L, CE2 = H and /CE2 = L
/CE = H means /CE1= H, or /CE1 = L and /CE2 = H, or /CE1 = L and CE2 = L
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
D5
Don't Care
Undefined
22
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
/CE OPERATION TIMING
tKH tKL
CLK
tSE tHE
tKC
CKE
Address
A1
A2
A3
A4
A5
/WRITE
/CE
ADV
/OE
tOEQ
tOELZ
Data Out
tKQHZ
Q1
tKQ
tKQLZ
Q2
Q4
tDS tDH
D3
Data In
D5
Don't Care
Undefined
NOTES: /WRITE = L means /WE = L and /BWX = L
/CE = L means /CE1 = L, CE2 = H and /CE2 = L
/CE = H means /CE1= H, or /CE1 = L and /CE2 = H, or /CE1 = L and CE2 = L
SNOOZE MODE ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Conditions
ISB2
Current during SNOOZE MODE ZZ ≥ Vih
tPDS
tPUS
tZZI
tRZZI
ZZ active to input ignored
ZZ inactive to input sampled
ZZ active to SNOOZE current
ZZ inactive to exit SNOOZE current
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
Temperature Range
Com.
Ind.
Auto.
—
—
—
—
Min.
—
—
—
—
2
—
0
Max.
40
50
TBD
2
—
2
—
Unit
mA
cycle
cycle
cycle
ns
23
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
SLEEP MODE TIMING
CLK
tPDS
ZZ setup cycle
tPUS
ZZ recovery cycle
ZZ
tZZI
Isupply
ISB2
tRZZI
All Inputs
(except ZZ)
Deselect or Read Only
Deselect or Read Only
Normal
operation
cycle
Outputs (Q)
High-Z
Don't Care
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Rev. D
05/27/2015
24
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
IEEE 1149.1 TAP and Boundary Scan
The SRAM provides a limited set of JTAG functions to test the interconnection between SRAM I/Os and printed
circuit board traces or other components. There is no multiplexer in the path from I/O pins to the RAM core.
In conformance with IEEE Standard 1149.1, the SRAM contains a TAP controller, instruction register, boundary
scan register, bypass register, and ID register.
The TAP controller has a standard 16-state machine that resets internally on power-up. Therefore, a TRST signal
is not required
Disabling the JTAG feature
The SRAM can operate without using the JTAG feature. To disable the TAP controller, TCK must be tied LOW
(VSS) to prevent clocking of the device. TDI and TMS are internally pulled up and may be left disconnected. They
may alternately be connected to VDD through a pull-up resistor. TDO should be left disconnected. On power-up, the
device will come up in a reset state, which will not interfere with device operation.
Test Access Port Signal List:
1. Test Clock (TCK)
This signal uses VDD as a power supply. The test clock is used only with the TAP controller. All inputs are captured
on the rising edge of TCK. All outputs are driven from the falling edge of TCK.
2. Test Mode Select (TMS)
This signal uses VDD as a power supply. The TMS input is used to send commands to the TAP controller and is
sampled on the rising edge of TCK.
3. Test Data-In (TDI)
This signal uses VDD as a power supply. The TDI input is used to serially input test instructions and information into
the registers and can be connected to the input of any of the registers. The register between TDI and TDO is
chosen by the instruction that is loaded into the TAP instruction register. TDI is connected to the most significant
bit (MSB) of any register. For more information regarding instruction register loading, please see the TAP
Controller State Diagram.
4. Test Data-Out (TDO)
This signal uses VDDQ as a power supply. The TDO output ball is used to serially clock test instructions and data
out from the registers. The TDO output driver is only active during the Shift-IR and Shift-DR TAP controller states.
In all other states, the TDO pin is in a High-Z state. The output changes on the falling edge of TCK. TDO is
connected to the least significant bit (LSB) of any register. For more information, please see the TAP Controller
State Diagram.
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IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
TAP Controller State and Block Diagram
...
Boundary Scan Register (75
90 bits)
TDI
Bypass Register (1 bit)
Identification Register (32 bits)
TDO
Instruction Register (3 bits)
Control Signals
TMS
TAP Controller
TCK
TAP Controller State Machine
1
Test Logic
Reset
0
Run Test
Idle
1
Select DR
1
Select IR
0
1
0
0
1
1
Capture
DR
0
Capture
IR
0
0
Shift DR
1
1
1
1
Exit1 DR
Exit1 IR
0
0
0
Pause DR
1
Exit2 DR
0
Exit2 IR
1
0
1
Update
DR
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
0
Pause IR
1
1
0
Shift IR
Update IR
0
1
0
26
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
Performing a TAP Reset
A Reset is performed by forcing TMS HIGH (VDD) for five rising edges of TCK. RESET may be performed while the
SRAM is operating and does not affect its operation. At power-up, the TAP is internally reset to ensure that TDO
comes up in a high-Z state.
TAP Registers
Registers are connected between the TDI and TDO pins and allow data to be scanned into and out of the SRAM
test circuitry. Only one register can be selected at a time through the instruction registers. Data is serially loaded
into the TDI pin on the rising edge of TCK and output on the TDO pin on the falling edge of TCK.
1. Instruction Register
This register is loaded during the update-IR state of the TAP controller. At power-up, the instruction register is
loaded with the IDCODE instruction. It is also loaded with the IDCODE instruction if the controller is placed in a
reset state as described in the previous section. When the TAP controller is in the capture-IR state, the two LSBs
are loaded with a binary “01” pattern to allow for fault isolation of the board-level serial test data path.
2. Bypass Register
The bypass register is a single-bit register that can be placed between the TDI and TDO balls. This allows data to
be shifted through the SRAM with minimal delay. The bypass register is set LOW (VSS) when the BYPASS
instruction is executed.
3. Boundary Scan Register
The boundary scan register is connected to all the input and bidirectional balls on the SRAM. Several balls are
also included in the scan register to reserved balls. The boundary scan register is loaded with the contents of the
SRAM Input and Output ring when the TAP controller is in the capture-DR state and is then placed between the
TDI and TDO balls when the controller is moved to the shift-DR state. Each bit corresponds to one of the balls on
the SRAM package. The MSB of the register is connected to TDI, and the LSB is connected to TDO.
4. Identification (ID) Register
The ID register is loaded with a vendor-specific, 32-bit code during the capture-DR state when the IDCODE
command is loaded in the instruction register. The IDCODE is hardwired into the SRAM and can be shifted out
when the TAP controller is in the shift-DR state.
Scan Register Sizes
Register Name
Instruction
Bypass
ID
Boundary Scan
Bit Size
3
1
32
90
TAP Instruction Set
Many instructions are possible with an eight-bit instruction register and all valid combinations are listed in the TAP
Instruction Code Table. All other instruction codes that are not listed on this table are reserved and should not be
used. Instructions are loaded into the TAP controller during the Shift-IR state when the instruction register is
placed between TDI and TDO. During this state, instructions are shifted from the instruction register through the
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IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
TDI and TDO pins. To execute an instruction once it is shifted in, the TAP controller must be moved into the
Update-IR state.
1. EXTEST
The EXTEST instruction allows circuitry external to the component package to be tested. Boundary-scan register
cells at output balls are used to apply a test vector, while those at input balls capture test results. Typically, the first
test vector to be applied using the EXTEST instruction will be shifted into the boundary scan register using the
PRELOAD instruction. Thus, during the update-IR state of EXTEST, the output driver is turned on, and the
PRELOAD data is driven onto the output balls.
2. IDCODE
The IDCODE instruction causes a vendor-specific, 32-bit code to be loaded into the instruction register. It also
places the instruction register between the TDI and TDO balls and allows the IDCODE to be shifted out of the
device when the TAP controller enters the shift-DR state. The IDCODE instruction is loaded into the instruction
register upon power-up or whenever the TAP controller is given a test logic reset state.
3. SAMPLE Z
If the SAMPLE-Z instruction is loaded in the instruction register, all SRAM outputs are forced to an inactive drive
state (high-Z), moving the TAP controller into the capture-DR state loads the data in the SRAMs input into the
boundary scan register, and the boundary scan register is connected between TDI and TDO when the TAP
controller is moved to the shift-DR state.
4. SAMPLE/PRELOAD
When the SAMPLE/PRELOAD instruction is loaded into the instruction register and the TAP controller is in the
capture-DR state, a snapshot of data on the inputs and bidirectional balls is captured in the boundary scan register.
The user must be aware that the TAP controller clock can only operate at a frequency up to 10 MHz, while the
SRAM clock operates significantly faster. Because there is a large difference between the clock frequencies, it is
possible that during the capture-DR state, an input or output will undergo a transition. The TAP may then try to
capture a signal while in transition. This will not harm the device, but there is no guarantee as to the value that will
be captured. Repeatable results may not be possible. To ensure that the boundary scan register will capture the
correct value of a signal, the SRAM signal must be stabilized long enough to meet the TAP controller’s capture
setup plus hold time. The SRAM clock input might not be captured correctly if there is no way in a design to stop
(or slow) the clock during a SAMPLE/ PRELOAD instruction. If this is an issue, it is still possible to capture all other
signals and simply ignore the value of the CLK captured in the boundary scan register. Once the data is captured,
it is possible to shift out the data by putting the TAP into the shift-DR state. This places the boundary scan register
between the TDI and TDO balls.
6. BYPASS
When the BYPASS instruction is loaded in the instruction register and the TAP is placed in a shift-DR state, the
bypass register is placed between TDI and TDO. The advantage of the BYPASS instruction is that it shortens the
boundary scan path when multiple devices are connected together on a board.
7. PRIVATE
Do not use these instructions. They are reserved for future use and engineering mode.
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IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
JTAG DC Operating Characteristics
(Over the Operating Temperature Range, 2.5V and 3.3V Option)
Parameter
Symbol
Min
JTAG Input High Voltage
VIH1
2.0
JTAG Input Low Voltage
VIL1
–0.3
JTAG Output High Voltage
VOH1
1.7
JTAG Output Low Voltage
VOL1
JTAG Output High Voltage
VOH2
2.1
JTAG Output Low Voltage
VOL2
JTAG Input Leakage Current
ILIJTAG
-10
JTAG Output Leakage Current
ILOJTAG
-10
Max
VDD+0.3
0.7
0.7
0.2
+10
+10
Units
V
V
V
V
V
V
µA
µA
Notes
|IOH1|=2mA
IOL1=2mA
|IOH2|=100µA
IOL2=100µA
0 ≤ Vin ≤ VDD
0 ≤ Vout ≤ VDD
Notes:
1.
All voltages referenced to VSS (GND); All JTAG inputs and outputs are LVTTL-compatible.
JTAG DC Operating Characteristics
(Over the Operating Temperature Range, 1.8V Option)
Parameter
Symbol
Min
JTAG Input High Voltage
VIH1
TBD
JTAG Input Low Voltage
VIL1
TBD
JTAG Output High Voltage
VOH1
TBD
JTAG Output Low Voltage
VOL1
TBD
JTAG Input Leakage Current
ILIJTAG
TBD
JTAG Output Leakage Current
ILOJTAG
TBD
Max
TBD
TBD
TBD
TBD
TBD
TBD
Units
V
V
V
V
µA
µA
Notes
Notes:
1.
All voltages referenced to VSS (GND); All JTAG inputs and outputs are LVTTL-compatible.
JTAG AC Test Conditions
(Over the Operating Temperature Range)
Parameter
Input Pulse High Level
Input Pulse Low Level
Input rise and fall time
Test load termination supply voltage
Input and Output Timing Reference Level
Symbol
VIH1
VIL1
TR1
VREF
VREF
1.8V Option
TBD
TBD
TBD
TBD
TBD
2.5V Option
2.5
0
1.5
1.25
1.25
3.3V Option
3.0
0
1.5
1.5
1.5
Units
V
V
ns
V
V
TAP Output Load Equivalent
VREF
50Ω
50Ω
Output
20pF
Test Comparator
VREF
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IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
JTAG AC Characteristics
(Over the Operating Temperature Range)
Parameter
TCK cycle time
TCK high pulse width
TCK low pulse width
TMS Setup
TMS Hold
TDI Setup
TDI Hold
TCK Low to Valid Data
Symbol
tTHTH
tTHTL
tTLTH
tMVTH
tTHMX
tDVTH
tTHDX
tTLOV
Min
100
40
40
10
10
10
10
–
Max
–
–
–
–
–
–
–
20
Units
ns
ns
ns
ns
ns
ns
ns
ns
JTAG Timing Diagram
tTHTL
tTHTH
tTLTH
TCK
tMVTH
tTHMX
tDVTH
tTHDX
TMS
TDI
tTLOV
TDO
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IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
Instruction Set
Code
Instruction
TDO Output
Notes
000
EXTEST
Boundary Scan Register
2, 6
001
IDCODE
32-bit Identification Register
010
SAMPLE-Z
Boundary Scan Register
1, 2
011
PRIVATE
Do Not Use
5
100
SAMPLE(/PRELOAD)
Boundary Scan Register
4
101
PRIVATE
Do Not Use
5
110
PRIVATE
Do Not Use
5
111
BYPASS
Bypass Register
3
Notes:
1. Places DQs in high-Z in order to sample all input data, regardless of other SRAM inputs.
2. TDI is sampled as an input to the first ID register to allow for the serial shift of the external TDI data.
3. BYPASS register is initiated to VSS when BYPASS instruction is invoked. The BYPASS register also holds the last serially loaded TDI when exiting the
shift-DR state.
4. SAMPLE instruction does not place DQs in high-Z.
5. This instruction is reserved. Invoking this instruction will cause improper SRAM functionality.
6.
This EXTEST is not IEEE 1149.1-compliant. By default, it places DQ in high-Z. If the internal register on the scan chain is set high, DQ will be updated
with information loaded via a previous SAMPLE instruction. The actual transfer occurs during the update IR state after EXTEST is loaded. The value of
the internal register can be changed during SAMPLE and EXTEST only.
ID Register Definition
Instruction Field
Revision Number (31:28)
Device Depth (27:23)
Device Width (22:18)
ISSI Device ID (17:12)
ISSI JEDEC ID (11:1)
ID Register Presence (0)
Description
Reserved for version number.
512K x 36
xxxx
1024K x 18
xxxx
Defines depth of SRAM. 512K or
1024K
Defines Width of the SRAM. x36 or
x18
Reserved for future use.
00111
01000
00100
00011
xxxxxx
xxxxxx
Allows unique identification of SRAM
vendor.
Indicate the presence of an ID
register.
00001010101
00001010101
1
1
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IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
Boundary Scan Order
(TBA – 119 BGA)
165 BGA
Bit #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
X36
Bump ID
N6
N7
N10
P11
P8
R8
R9
P9
P10
R10
R11
H11
N11
M11
L11
M10
L10
K11
J11
K10
J10
H9
H10
G11
F11
G10
E11
D11
F10
E10
D10
C11
A11
B11
A10
B10
A9
Signal
NC
NC
NC
NC
A18
A17
A16
A15
A14
A13
A12
ZZ
DQa0
DQa1
DQa2
DQa3
DQa4
DQa5
DQa6
DQa7
DQa8
NC
NC
DQb8
DQb7
DQb6
DQb5
DQb4
DQb3
DQb2
DQb1
DQb0
NC
NC
A11
A10
A9
X18
Bump ID
N6
N7
N10
P11
P8
R8
R9
P9
P10
R10
R11
H11
N11
M11
L11
M10
L10
K11
J11
K10
J10
H9
H10
G11
F11
G10
E11
D11
C11
E10
D10
F10
A11
B11
A10
B10
A9
Signal
NC
NC
NC
NC
A18
A17
A16
A15
A14
A13
A12
ZZ
NC
NC
NC
DQa8
DQa7
NC
NC
DQa6
DQa5
NC
NC
DQa4
DQa3
NC
DQa2
DQa1
DQa0
NC
NC
NC
A19
NC
A11
A10
A9
Continued on next page
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IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
165 BGA
Bit #
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
X36
Bump ID
B9
C10
A8
B8
A7
B7
B6
A6
B5
A5
A4
B4
B3
A3
A2
B2
C2
B1
A1
C1
D1
E1
D2
E2
F1
G1
F2
G2
H1
H2
H3
J1
K1
J2
L1
M1
K2
L2
M2
N1
N2
P1
Signal
A8
NC
ADV
/OE
/CKE
/WE
CLK
/CE2
/Bwa
/Bwb
/Bwc
/Bwd
CE2
/CE1
A7
A6
NC
NC
NC
DQc0
DQc1
DQc2
DQc3
DQc4
DQc5
DQc6
DQc7
DQc8
NC
NC
NC
DQd8
DQd7
DQd6
DQd5
DQd4
DQd3
DQd2
DQd1
DQd0
NC
NC
X18
Bump ID
B9
C10
A8
B8
A7
B7
B6
A6
B5
A5
A4
B4
B3
A3
A2
B2
C2
B1
A1
C1
D1
E1
D2
E2
F1
G1
F2
G2
H1
H2
H3
J1
K1
J2
L1
M1
N1
L2
M2
K2
N2
P1
Signal
A8
NC
ADV
/OE
/CKE
/WE
CLK
/CE2
/Bwa
NC
/Bwb
NC
CE2
/CE1
A7
A6
NC
NC
NC
NC
NC
NC
DQb8
DQb7
NC
NC
DQb6
DQb5
NC
NC
NC
DQb4
DQb3
NC
DQb2
DQb1
DQb0
NC
NC
NC
NC
NC
Continued on next page
Integrated Silicon Solution, Inc.- www.issi.com
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IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
165 BGA
X36
Bit
#
80
81
82
83
84
85
86
87
88
89
90
Bump ID
R1
R2
P3
R3
P2
P4
R4
N5
P6
R6
*
X18
Signal
MODE
NC
A5
A4
NC
A2
A3
NC
A1
A0
Int
Bump ID
R1
R2
P3
R3
P2
P4
R4
N5
P6
R6
*
Signal
MODE
NC
A5
A4
NC
A2
A3
NC
A1
A0
Int
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IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
ORDERING INFORMATION
Commercial Range: 0°C to +70°C
VDD
Access
Time
6.5ns
VDD=3.3V,
VDDQ=2.5V/3.3V
7.5ns
6.5ns
VDD=2.5V,
VDDQ=2.5V
7.5ns
VDD=1.8V,
VDDQ=1.8V
X36
X18
Package
IS61NLF51236B-6.5TQ
IS61NLF51236B-6.5B3
IS61NLF51236B-6.5B2
IS61NLF51236B-6.5TQL
IS61NLF51236B-6.5B3L
IS61NLF51236B-6.5B2L
IS61NLF51236B-7.5TQ
IS61NLF51236B-7.5B3
IS61NLF51236B-7.5B2
IS61NLF51236B-7.5TQL
IS61NLF51236B-7.5B3L
IS61NLF51236B-7.5B2L
IS61NLF102418B-6.5TQ
IS61NLF102418B-6.5B3
IS61NLF102418B-6.5B2
IS61NLF102418B-6.5TQL
IS61NLF102418B-6.5B3L
IS61NLF102418B-6.5B2L
IS61NLF102418B-7.5TQ
IS61NLF102418B-7.5B3
IS61NLF102418B-7.5B2
IS61NLF102418B-7.5TQL
IS61NLF102418B-7.5B3L
IS61NLF102418B-7.5B2L
100 QFP
165 BGA
119 BGA
100 QFP, Lead-free
165 BGA, Lead-free
119 BGA, Lead-free
100 QFP
165 BGA
119 BGA
100 QFP, Lead-free
165 BGA, Lead-free
119 BGA, Lead-free
IS61NVF51236B-6.5TQ
IS61NVF102418B-6.5TQ
100 QFP
IS61NVF51236B-6.5B3
IS61NVF102418B-6.5B3
165 BGA
IS61NVF51236B-6.5B2
IS61NVF102418B-6.5B2
119 BGA
IS61NVF51236B-6.5TQL
IS61NVF102418B-6.5TQL
100 QFP, Lead-free
IS61NVF51236B-6.5B3L
IS61NVF102418B-6.5B3L
165 BGA, Lead-free
IS61NVF51236B-6.5B2L
IS61NVF102418B-6.5B2L
119 BGA, Lead-free
IS61NVF51236B-7.5TQ
IS61NVF102418B-7.5TQ
100 QFP
IS61NVF51236B-7.5B3
IS61NVF102418B-7.5B3
165 BGA
IS61NVF51236B-7.5B2
IS61NVF102418B-7.5B2
119 BGA
IS61NVF51236B-7.5TQL
IS61NVF102418B-7.5TQL
100 QFP, Lead-free
IS61NVF51236B-7.5B3L
IS61NVF102418B-7.5B3L
165 BGA, Lead-free
IS61NVF51236B-7.5B2L
IS61NVF102418B-7.5B2L
119 BGA, Lead-free
6.5ns
*Please contact ISSI Marketing
7.5ns
*Please contact ISSI Marketing
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
35
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
Industrial Range: -40°C to +85°C
VDD
Access
Time
6.5ns
7.5ns
*Please contact ISSI Marketing
VDD=3.3V,
VDDQ=2.5V/3.3V
7.5ns
6.5ns
VDD=2.5V,
VDDQ=2.5V
7.5ns
IS61NLF51236B-6.5TQI
IS61NLF51236B-6.5B3I
IS61NLF51236B-6.5B2I
IS61NLF51236B-6.5TQLI
IS61NLF51236B-6.5B3LI
IS61NLF51236B-6.5B2LI
IS61NLF51236B-7.5TQI
IS61NLF51236B-7.5B3I
IS61NLF51236B-7.5B2I
IS61NLF51236B-7.5TQLI
IS61NLF51236B-7.5B3LI
IS61NLF51236B-7.5B2LI
IS61NVF51236B-6.5TQI
IS61NVF51236B-6.5B3I
IS61NVF51236B-6.5B2I
IS61NVF51236B-6.5TQLI
IS61NVF51236B-6.5B3LI
IS61NVF51236B-6.5B2LI
IS61NVF51236B-7.5TQI
IS61NVF51236B-7.5B3I
IS61NVF51236B-7.5B2I
IS61NVF51236B-7.5TQLI
IS61NVF51236B-7.5B3LI
IS61NVF51236B-7.5B2LI
IS61NVF51236B-6.5TQI
X18
IS61NLF102418B-6.5TQI
IS61NLF102418B-6.5B3I
IS61NLF102418B-6.5B2I
IS61NLF102418B-6.5TQLI
IS61NLF102418B-6.5B3LI
IS61NLF102418B-6.5B2LI
IS61NLF102418B-7.5TQI
IS61NLF102418B-7.5B3I
IS61NLF102418B-7.5B2I
IS61NLF102418B-7.5TQLI
IS61NLF102418B-7.5B3LI
IS61NLF102418B-7.5B2LI
IS61NVF102418B-6.5TQI
IS61NVF102418B-6.5B3I
IS61NVF102418B-6.5B2I
IS61NVF102418B-6.5TQLI
IS61NVF102418B-6.5B3LI
IS61NVF102418B-6.5B2LI
IS61NVF102418B-7.5TQI
IS61NVF102418B-7.5B3I
IS61NVF102418B-7.5B2I
IS61NVF102418B-7.5TQLI
IS61NVF102418B-7.5B3LI
IS61NVF102418B-7.5B2LI
IS61NVF102418B-6.5TQI
*Please contact ISSI Marketing
6.5ns
VDD=1.8V,
VDDQ=1.8V
X36
Package
100 QFP
165 BGA
119 BGA
100 QFP, Lead-free
165 BGA, Lead-free
119 BGA, Lead-free
100 QFP
165 BGA
119 BGA
100 QFP, Lead-free
165 BGA, Lead-free
119 BGA, Lead-free
100 QFP
165 BGA
119 BGA
100 QFP, Lead-free
165 BGA, Lead-free
119 BGA, Lead-free
100 QFP
165 BGA
119 BGA
100 QFP, Lead-free
165 BGA, Lead-free
119 BGA, Lead-free
100 QFP
Automotive Range: -40°C to +125°C
VDD
Access
Time
6.5ns
VDD=3.3V,
VDDQ=2.5V/3.3V
7.5ns
X36
IS64NLF51236B-6.5TQLA3
IS64NLF51236B-6.5B3LA3
IS64NLF51236B-6.5B2LA3
IS64NLF51236B-7.5TQLA3
IS64NLF51236B-7.5B3LA3
IS64NLF51236B-7.5B2LA3
Package
100 QFP, Lead-free
165 BGA, Lead-free
119 BGA, Lead-free
100 QFP, Lead-free
165 BGA, Lead-free
119 BGA, Lead-free
*For all other voltages and options in automotive grade, please contact ISSI.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
36
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
37
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
38
IS61NLF51236(32)B/IS61NVF51236(32)B/IS61NVVF51236(32)B
IS61NLF102418B/IS61NVF102418B/IS61NVVF102418B
Integrated Silicon Solution, Inc.- www.issi.com
Rev. D
05/27/2015
39