IS61WV51216EEALL
IS61/64WV51216EEBLL
512Kx16 HIGH SPEED AYNCHRONOUS
CMOS STATIC RAM with ECC
KEY FEATURES
High-speed access time: 8ns, 10ns, 20ns
Single power supply
– 1.65V-2.2V VDD (IS61WV51216EEALL)
– 2.4V-3.6V VDD (IS61/64WV51216EEBLL)
Error Detection and Correction with optional
ERR1/ERR2 output pin:
- ERR1 pin indicates 1-bit error detection and
correction.
- ERR2 pin indicates 2-bit error detection
Package Available:
- 44-pin TSOP (Type II)
- 48-pin TSOP (Type I)
- 48-ball mini BGA (6mm x 8mm)
- 54 pin TSOP (Type II)
Three state outputs
Industrial and Automotive temperature support
Lead-free available
FUNCTIONAL BLOCK DIAGRAM
A0 – A18
DECODER
VDD
VSS
ERR1
ERR2
I/O0 – I/O7
I/O8 – I/O15
CS# or
CS1#/CS2
OE#
WE#
UB#
LB#
Memory
Memory
Lower IO ECC Upper IO ECC
Array
Array
Array
Array
512Kx8 512Kx5 512Kx8 512Kx5
8
I/O
DATA
CIRCUIT
8
5
8
13
8
ECC
ECC
13
5
AUGUST 2019
DESCRIPTION
The ISSI IS61/64WV51216EEALL/BLL are high-speed, low
power, 8M bit static RAMs organized as 512K words by 16
bits. It is fabricated using ISSI's high-performance CMOS
technology and implemented ECC function to improve
reliability.
This highly reliable process coupled with innovative circuit
design techniques including ECC (SEC-DED: Single Error
Correcting-Double Error Detecting) yield high-performance
and highly reliable devices.
When CS# is HIGH (deselected), the device assumes a
standby mode at which the power dissipation can be
reduced down with CMOS input levels.
Easy memory expansion is provided by using Chip Enable
and Output Enable inputs. The active LOW Write Enable
(WE#) controls both writing and reading of the memory.
A data byte allows Upper Byte (UB#) and Lower Byte (LB#)
access.
The devices are packaged in the JEDEC standard 44-pin
TSOP (TYPE II), 48-pin mini BGA (6mm x 8mm), 48-pin
TSOP (TYPE I), and 54-pin TSOP (TYPE II)
COLUMN I/OColumn I/O
CONTROL
CIRCUIT
Copyright © 2019 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. A1
08/07/2019
1
IS61WV51216EEALL
IS61/64WV51216EEBLL
PIN CONFIGURATIONS
48-Pin mini BGA(6mm x 8mm)
48-Pin mini BGA (6mm x 8mm), ERR1/2
1
2
3
4
5
6
LB#
OE#
A0
A1
A2
NC
A
B
I/O8
UB#
A3
A4
CS#
I/O0
C
I/O9
I/O10
A5
A6
I/O1
D
VSS
I/O11
A17
A7
E
VDD
I/O12
NC
F
I/O14
I/O13
G
I/O15
H
A18
A
1
2
3
4
5
6
LB#
OE#
A0
A1
A2
NC
B
I/O8
UB#
A3
A4
CS#
I/O0
I/O2
C
I/O9
I/O10
A5
A6
I/O1
I/O2
I/O3
VDD
D
VSS
I/O11
A17
A7
I/O3
VDD
A16
I/O4
VSS
E
VDD
I/O12
ERR1
A16
I/O4
VSS
A14
A15
I/O5
I/O6
F
I/O14
I/O13
A14
A15
I/O5
I/O6
NC
A12
A13
WE#
I/O7
G
I/O15
ERR2
A12
A13
WE#
I/O7
A8
A9
A10
A11
NC
H
A18
A8
A9
A10
A11
NC
44-Pin TSOP-II
48-Pin TSOP-I, ERR1/ERR2
A0
1
44
A17
A0
1
48
A17
A1
2
43
A16
A16
3
42
A15
2
3
47
A2
A1
A2
46
A3
4
41
OE#
A3
4
45
A15
NC
5
6
44
43
CS#
I/O0
7
42
UB#
LB#
8
41
I/O15
9
40
I/O14
10
11
39
I/O3
I/O13
I/O12
VDD
12
VSS
I/O4
13
14
36
VDD
35
I/O11
I/O5
15
34
I/O10
I/O6
16
33
I/O9
I/O7
17
32
I/O8
WE#
18
31
NC
ERR2
19
30
A18
5
40
UB#
6
39
LB#
I/O0
I/O1
7
38
I/O15
8
9
37
I/O14
I/O2
36
I/O13
I/O1
I/O2
I/O3
10
35
I/O12
VDD
11
34
VSS
VSS
12
VDD
I/O4
13
33
32
I/O11
I/O5
I/O6
14
31
I/O10
30
I/O9
I/O7
15
16
29
I/O8
WE#
17
28
A18
OE#
A4
ERR1
A4
CS#
38
37
VSS
A5
18
27
A14
A5
20
29
A14
A6
19
26
A13
21
28
A13
A7
20
25
A12
A6
A7
22
A12
A8
21
24
A11
A8
23
27
26
A9
22
23
A10
A9
24
25
A10
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
A11
2
IS61WV51216EEALL
IS61/64WV51216EEBLL
54-Pin TSOP-II
54-Pin TSOP-II, ERR1/ERR2
I/O12
1
54
I/O11
I/O12
1
54
I/O11
VDD
53
VSS
VDD
VSS
52
I/O13
52
I/O14
4
51
I/O10
I/O9
2
3
53
I/O13
2
3
I/O14
4
51
I/O10
I/O9
VSS
5
50
VDD
VSS
5
50
VDD
I/O15
6
49
I/O8
I/O15
6
49
I/O8
A4
7
48
A5
A4
7
48
A5
A3
8
47
A6
A3
8
47
A6
A2
9
46
A7
A2
9
46
A7
A1
45
A8
A1
45
A8
44
43
A9
A0
10
11
NC
UB#
12
44
43
ERR1
OE#
A0
10
11
UB#
12
CS1#
13
14
42
OE#
CS1#
VSS
VDD
13
14
42
41
41
VSS
WE#
15
40
NC
WE#
15
40
ERR2
CS2
16
39
LB#
CS2
16
39
LB#
NC
17
38
A10
NC
17
38
A10
A18
18
37
A11
A18
18
37
A11
A17
19
36
A12
A17
19
36
A12
A16
20
35
A13
A16
20
35
A13
A15
I/O0
21
34
A14
34
A14
I/O7
22
23
VSS
VDD
23
33
32
I/O7
VDD
33
32
A15
I/O0
21
22
I/O1
24
31
I/O6
I/O1
24
31
I/O6
I/O2
25
I/O5
I/O2
25
VSS
26
30
29
I/O5
VDD
I/O4
I/O3
27
28
I/O4
VDD
VSS
26
30
29
I/O3
27
28
A9
VSS
VDD
PIN DESCRIPTIONS
A0-A18
I/O0-I/O15
CS# or
CS1#/CS2
OE#
WE#
LB#
UB#
ERR1
Address Inputs
Data Inputs/Outputs
Chip Enable Input
ERR2
Output Enable Input
Write Enable Input
Lower-byte Control (I/O0-I/O7)
Upper-byte Control (I/O8-I/O15)
1-bit Error Detection and Correction
Signal
2-bit ERR Detection Signal
NC
VDD
VSS
No Connection
Power
Ground
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
3
IS61WV51216EEALL
IS61/64WV51216EEBLL
FUNCTION DESCRIPTION
SRAM is one of random access memories. Each byte or word has an address and can be accessed randomly. SRAM
has three different modes supported. Each function is described below with Truth Table.
STANDBY MODE
Device enters standby mode when deselected (CS# HIGH). The input and output pins (I/O0-15) are placed in a high
impedance state. CMOS input in this mode will maximize saving power.
WRITE MODE
Write operation issues with Chip selected (CS#) and Write Enable (WE#) input LOW. The input and output pins (I/O015) are in data input mode. Output buffers are closed during this time even if OE# is LOW. UB# and LB# enables a
byte write feature. By enabling LB# LOW, data from I/O pins (I/O0 through I/O7) are written into the location specified
on the address pins. And with UB# being LOW, data from I/O pins (I/O8 through I/O15) are written into the location.
READ MODE
Read operation issues with Chip selected (CS# LOW) and Write Enable (WE#) input HIGH. When OE# is LOW, output
buffer turns on to make data output. Any input to I/O pins during READ mode is not permitted. UB# and LB# enables a
byte read feature. By enabling LB# LOW, data from memory appears on I/O0-7. And with UB# being LOW, data from
memory appears on I/O8-15.
In the READ mode, output buffers can be turned off by pulling OE# HIGH. In this mode, internal device operates as
READ but I/Os are in a high impedance state. Since device is in READ mode, active current is used.
ERROR DETECTION AND ERROR CORRECTION
Independent ECC per each byte
- detect and correct 1-bit error per byte or detect multi-bit error per byte
Optional ERR1 output signal indicates 1-bit error detection and correction
Optional ERR2 output signal indicates multi-bit error detection.
Controller can use either ERR1 or ERR2 to monitor ECC event. Unused pins (ERR1 or ERR2) can be left
floating.
Better reliability than parity code schemes which can only detect an error but not correct an error
Backward Compatible: Drop in replacement to current in industry standard devices (without ECC)
ERR1, ERR2 OUTPUT SIGNAL BEHAVIOR
DQ pin
Status
ERR1
ERR2
0
0
Valid Q No Error
1
0
Valid Q 1-Bit Error only
0
1
1
1
High-Z
High-Z
Multi-Bit Error
only
1-bit & Multi-bit
In-Valid Q
error
In-Valid Q
Valid D Non-Read
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
Remark
1-bit error per byte detected and corrected
No 1-bit error. Multi-bit error per byte detected (out of 2 bytes)
1-bit error detected and corrected at one byte, and multi-bit error detected at another
byte.
Write operation or Output Disabled
4
IS61WV51216EEALL
IS61/64WV51216EEBLL
TRUTH TABLE
Mode
CS#
WE#
OE#
LB#
UB#
I/O0-I/O7
I/O8-I/O15
VDD Current
Not Selected
H
X
X
X
X
High-Z
High-Z
ISB1, ISB2
L
H
H
L
X
High-Z
High-Z
L
X
X
H
H
High-Z
High-Z
L
H
L
L
H
DOUT
High-Z
L
H
L
H
L
High-Z
DOUT
L
H
L
L
L
DOUT
DOUT
L
L
X
L
H
DIN
High-Z
L
L
X
H
L
High-Z
DIN
L
L
X
L
L
DIN
DIN
Output Disabled
Read
Write
ICC,ICC1
ICC,ICC1
ICC,ICC1
Note:
1.
CS# = H means CS1#=HIGH, and CS2= LOW in Dual Chip Select Device.
POWER UP INITIALIZATION
The device includes on-chip voltage sensor used to launch POWER-UP initialization process.
When VDD reaches stable level, the device requires 150us of tPU (Power-Up Time) to complete its self-initialization
process.
When initialization is complete, the device is ready for normal operation.
tPU
150 us
Stable VDD
VDD
Device Initialization
Device for Normal Operation
0V
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
5
IS61WV51216EEALL
IS61/64WV51216EEBLL
ABSOLUTE MAXIMUM RATINGS AND OPERATING RANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Vt er m
Parameter
Terminal Voltage with Respect to VSS
Value
–0.5 to VDD + 0.5V
Unit
V
VDD
V DD Related to VSS
–0.3 to 4.0
V
tStg
Storage Temperature
–65 to +150
PT
Power Dissipation
1.0
C
W
Note:
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.
.
PIN CAPACITANCE (1)
Parameter
Symbol
Input capacitance
DQ capacitance (IO0–IO15)
CIN
CI/O
Test Condition
TA = 25°C, f = 1 MHz, VDD = VDD(typ)
Max
Units
6
8
pF
pF
Note:
1. These parameters are guaranteed by design and tested by a sample basis only.
OPERATING RANGE(1)
Range
Industrial
Automotive (A3)
Note:
1.
Ambient
Temperature
-40C to +85C
-40C to +125C
IS61WV51216EEALL
VDD (20ns)
1.65V – 2.2V
–
IS61WV51216EEBLL
VDD (8, 10ns)
2.4V – 3.6V
–
IS64WV51216EEBLL
VDD (10ns)
–
2.4V – 3.6V
Full device AC operation assumes a 100 µs ramp time from 0 to VDD(min) and 200 µs wait time after VDD stabilization.
THERMAL CHARACTERISTICS (1)
Parameter
Thermal resistance from junction to ambient (airflow = 1m/s)
Thermal resistance from junction to pins
Thermal resistance from junction to case
Symbol
RθJA
RθJB
RθJC
Rating
TBD
TBD
TBD
Units
°C/W
°C/W
°C/W
Note:
1. These parameters are guaranteed by design and tested by a sample basis only.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
6
IS61WV51216EEALL
IS61/64WV51216EEBLL
AC TEST CONDITIONS (OVER THE OPERATING RANGE)
Parameter
Input Pulse Level
Unit
(1.65V~2.2V)
0V to VDD
Unit
(2.4V~3.6V)
0V to VDD
1.5 ns
½ VDD
13500
10800
1.8V
1.5 ns
½ VDD
319
353
3.3V
Input Rise and Fall Time
Output Timing Reference Level
R1 (ohm)
R2 (ohm)
VTM (V)
Output Load Conditions
Refer to Figure 1 and 2
AC TEST LOADS
FIGURE 1
FIGURE 2
R1
VTM
TM
V
Zo = 50 ohm
Output
50 ohm
VDD/2
30 pF,
Including
jig
and scope
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
OUTPUT
5pF,
Including
jig
and scope
R2R2
7
IS61WV51216EEALL
IS61/64WV51216EEBLL
DC ELECTRICAL CHARACTERISTICS
DC ELECTRICAL CHARACTERISTICS (OVER THE OPERATING RANGE)
VDD = 1.65V – 2.2V
Symbol
Parameter
VOH
Output HIGH Voltage
VOL
Output LOW Voltage
(1)
VIH
Input HIGH Voltage
(1)
VIL
Input LOW Voltage
ILI
Input Leakage
ILO
Output Leakage
Test Conditions
I OH = -0.1 mA
IOL = 0.1 mA
GND < VIN < VDD
GND < VIN < VDD, Output Disabled
Min.
1.4
—
1.4
–0.2
–1
–1
Max.
—
0.2
VDD + 0.2
0.4
1
1
Unit
V
V
V
V
µA
µA
Notes:
1. VILL(min) = -1.0V AC (pulse width < 10ns). Not 100% tested.
2. VIHH (max) = VDD + 1.0V AC (pulse width < 10ns). Not 100% tested.
DC ELECTRICAL CHARACTERISTICS (OVER THE OPERATING RANGE)
VDD = 2.4V – 3.6V
Symbol Parameter
VOH
Output HIGH
Voltage
VOL
Output LOW
Voltage
(1)
VIH
Input HIGH Voltage
VIL(1)
ILI
ILO
Input LOW Voltage
2.4V
2.7V
2.4V
2.7V
2.4V
2.7V
2.4V
2.7V
~
~
~
~
~
~
~
~
2.7V
3.6V
2.7V
3.6V
2.7V
3.6V
2.7V
3.6V
Input Leakage
Output Leakage
Test Conditions
V DD = Min., I OH = -1.0 mA
V DD = Min., I OH = -4.0 mA
V DD = Min., IOL = 2.0 mA
V DD = Min., I OL = 8.0 mA
VSS < VIN < VDD
VSS < VIN < VDD, Output Disabled
Min.
2.0
2.2
—
—
2.0
2.0
–0.3
–0.3
–2
–2
Max.
—
0.4
0.4
VDD + 0.3
0.6
0.8
2
2
Unit
V
V
V
V
µA
µA
Note:
1. VIL(min) = -0.3V DC ; VIL(min) = -2.0V AC (pulse width 2.0ns). Not 100% tested.
VIH (max) = VDD + 0.3V DC ; VIH(max) = VDD + 2.0V AC (pulse width 2.0ns). Not 100% tested..
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
8
IS61WV51216EEALL
IS61/64WV51216EEBLL
POWER SUPPLY CHARACTERISTICS-II FOR POWER (OVER THE OPERATING RANGE)
Symbol
Parameter
ICC
VDD Dynamic Operating
Supply Current
ICC1
Operating Supply
Current
ISB1
TTL Standby Current
(TTL Inputs)
ISB2
CMOS Standby Current
(CMOS Inputs)
Test Conditions
VDD = MAX, IOU T = 0 mA, f = fMAX
VDD = MAX,
IOUT = 0 mA, f = 0
VDD = MAX,
VIN = VIH or VIL
CS# ≥ VIH , f = 0
VDD = MAX,
CS# ≥ VDD - 0.2V
VIN ≥ VDD - 0.2V , or VIN ≤ 0.2V , f
=0
Notes:
1.
2.
Grade
Com.
Ind.
Auto.
Com.
Ind.
Auto.
Com.
Ind.
Auto.
Com.
Ind.
Auto.
-8
Max.
90
100
80
90
40
50
30
-10
Max.
85
95
135
80
90
110
40
50
60
30
-20
Max
80
90
80
90
40
50
30
40
40
40
-
50
-
Typ. (2)
Unit
mA
mA
mA
mA
10
At f = fMAX, address and data inputs are cycling at the maximum frequency, f = 0 means no input line change.
Typical values are measured at VDD = 3.0V/1.8V, TA = 25 °C and not 100% tested.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
9
IS61WV51216EEALL
IS61/64WV51216EEBLL
AC CHARACTERISTICS (OVER OPERATING RANGE)
READ CYCLE AC CHARACTERISTICS
Parameter
Symbol
Read Cycle Time
Address Access Time
Output Hold Time
CS# Access Time
OE# Access Time
tRC
tAA
tOHA
tACE
tDOE
OE# to High-Z Output
OE# to Low-Z Output
CS# to High-Z Output
CS# to Low-Z Output
UB#, LB# Access Time
UB#, LB# to High-Z Output
UB#, LB# to Low-Z Output
Notes:
1.
2.
-8(1)
-10(1)
-20(1)
unit
notes
Min
Max
Min
Max
Min
Max
8
2.5
-
8
8
5.5
10
2.5
-
10
10
6
20
2.5
-
20
20
8
ns
ns
ns
ns
ns
tHZOE
tLZOE
tHZCE
tLZCE
tBA
tHZB
0
0
0
3
0
4
4
5.5
4
0
0
0
3
0
5
5
6
5
0
0
0
3
0
8
8
8
8
ns
ns
ns
ns
ns
ns
2
2
2
2
tLZB
0
-
0
-
0
-
ns
2
2
Test conditions assume signal transition times of 1.5 ns or less, timing reference levels of V DD/2, input pulse levels of 0V to VDD and output
loading specified in Figure 1.
Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
AC WAVEFORMS
READ CYCLE NO. 1(1,2) (ADDRESS CONTROLLED, CS# = OE# = UB# = LB# = LOW, WE# = HIGH)
tRC
Address
tAA
tOHA
DQ 0-15
tOHA
PREVIOUS DATA VALID
LOW-Z
DATA VALID
ERR1
PREVIOUS ERROR VALID
LOW-Z
ERROR1 VALID
ERR2
PREVIOUS ERROR VALID
LOW-Z
ERROR2 VALID
Notes:
1. The device is continuously selected.
2.
ERR1, ERR2 signals act like a Read Data Q during Read Operation.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
10
IS61WV51216EEALL
IS61/64WV51216EEBLL
READ CYCLE NO. 2(1) (OE# CONTROLLED, WE# = HIGH)
tRC
ADDRESS
tAA
tOHA
tDOE
OE#
tHZOE
tLZOE
CS#
tACS
tHZCS
tLZCS
UB#,LB#
tHZB
tBA
tLZB
DOUT
HIGH-Z
LOW-Z
DATA VALID
Note:
1. Address is valid prior to or coincident with CS# LOW transition.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
11
IS61WV51216EEALL
IS61/64WV51216EEBLL
WRITE CYCLE AC CHARACTERISTICS
Parameter
Symbol
-8(1)
Min Max
Write Cycle Time
tWC
tSCS
tAW
tPWB
tHA
tSA
8
6.5
6.5
6.5
0
0
tPWE1
tPWE2
tSD
tHD
tHZWE
tLZWE
6.5
8
5
0
2
CS# to Write End
Address Setup Time to Write End
UB#,LB# to Write End
Address Hold from Write End
Address Setup Time
WE# Pulse Width
WE# Pulse Width (OE# = LOW)
Data Setup to Write End
Data Hold from Write End
WE# LOW to High-Z Output
WE# HIGH to Low-Z Output
Notes:
1
2
-10(1)
-20(1)
unit
Min
Max
Min
Max
-
10
8
8
8
0
0
-
20
12
12
12
0
0
-
ns
ns
ns
ns
ns
ns
3.5
-
8
10
6
0
2
4
-
12
17
9
0
3
9
-
ns
ns
ns
ns
ns
ns
notes
2
The internal write time is defined by the overlap of CS# = LOW, UB# or LB# = LOW, and WE# = LOW. All conditions must be in valid states
to initiate a Write, but any condition can go inactive to terminate the Write. The Data Input Setup and Hold timing are referenced to the
rising or falling edge of the signal that terminates the write.
tPWE > tHZWE + tSD when OE# is LOW.
AC WAVEFORMS
WRITE CYCLE NO. 1 (CS# CONTROLLED, OE# = HIGH OR LOW)
tWC
ADDRESS
tSCS
tSA
tHA
CS#
tAW
tPWE
WE#
tPWB
UB#,LB#
tHZWE
DOUT
DATA UNDEFINED
(1)
HIGH-Z
tSD
DIN
Note:
1.
DATA UNDEFINED
(2)
tLZWE
tHD
DATA IN VALID
tHZWE is based on the assumption when tSA=0nS after READ operation. Actual DOUT for tHZWE may not appear if OE# goes high
before Write Cycle.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
12
IS61WV51216EEALL
IS61/64WV51216EEBLL
WRITE CYCLE NO. 2(1,2) (WE# CONTROLLED: OE# IS HIGH DURING WRITE CYCLE)
tWC
ADDRESS
tSCS
tHA
CS#
tAW
WE#
tPWE
tSA
tPWB
UB#,LB#
OE#
tHZOE
DOUT
DATA UNDEFINED
DIN
DATA UNDEFINED
HIGH-Z
(1)
tSD
(2)
tHD
DATA IN VALID
Notes:
1.
tHZOE is the time DOUT goes to High-Z after OE# goes high.
2. During this period the I/Os are in output state. Do not apply input signals.
WRITE CYCLE NO. 3(1) (WE# CONTROLLED: OE# IS LOW DURING WRITE CYCLE)
tWC
ADDRESS
OE# = LOW
CS#=LOW
tHA
tAW
tPWE2
WE#
tSA
UB#,LB#
tPWB
tHZWE
DOUT
tLZWE
HIGHZ
DATA UNDEFINED
tSD
DIN
tHD
DATA IN VALID
Note:
3. If OE# is low during write cycle, tHZWE must be met in the application. Do not apply input signal during this period. Data output from the
previous READ operation will drive IO BUS.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
13
IS61WV51216EEALL
IS61/64WV51216EEBLL
WRITE CYCLE NO. 4(1, 2, 3) (UB# & LB# Controlled, CS# = OE# = LOW)
tWC
tWC
ADDRESS
ADDRESS 1
ADDRESS 2
CS#=LOW
OE#=LOW
tSA
tHA
tSA
tHA
WE#
tPWB
UB#, LB#
tPWB
WORD 1
WORD 2
tHZWE
DOUT
tLZWE
HIGH-Z
DATA UNDEFINED
tHD
tSD
DIN
Notes:
1
2
3
DATA IN
VALID
DATA IN
VALID
If OE# is low during write cycle, tHZWE must be met in the application. Do not apply input signal during this period. Data output from the
previous READ operation will drive IO BUS.
Due to the restriction of note1, OE# is recommended to be HIGH during write period.
WE# stays LOW in this example. If WE# toggles, tPWE and tHZWE must be considered.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
14
IS61WV51216EEALL
IS61/64WV51216EEBLL
DATA RETENTION CHARACTERISTICS
Symbol
Parameter
VDR
VDD for Data
Retention
Data Retention
Current
IDR
Test Condition
OPTION
Min.
VDD = 2.4V to 3.6V
2.0
Typ.(2)
Max.
Unit
3.6
See Data Retention Waveform
V
VDD = 1.65V to 2.2V
1.2
Com.
-
10
30
Ind.
-
-
40
Auto
-
-
50
VDD= VDR(min),
CS# ≥ VDD – 0.2V
3.6
mA
tSDR
Data Retention
Setup Time
See Data Retention Waveform
0
-
-
ns
tRDR
Recovery Time
See Data Retention Waveform
tRC
-
-
ns
Note:
1.
2.
3.
If CS# > VDD–0.2V, all other inputs including UB# and LB# must meet this condition.
CS#=H means CS1#=HIGH, and CS2=LOW in Dual Chip Select Device
Typical values are measured at VDD = VDR (Min), TA = 25 °C and not 100% tested.
DATA RETENTION WAVEFORM (CS# CONTROLLED)
tSDR
Data Retention Mode
tRDR
VDD
VDR
CS#
CS# > VDD – 0.2V
GND
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
15
IS61WV51216EEALL
IS61/64WV51216EEBLL
ORDERING INFORMATION
Industrial Range: -40°C to +85°C, Voltage Range: 1.65V to 2.2V
Speed (ns)
Order Part No.
Package
20
IS61WV51216EEALL-20BLI
mini BGA (6mm x 8mm), Lead-free
20
IS61WV51216EEALL-20B2LI
mini BGA (6mm x 8mm), ERR1/2 Pins, Lead-free
20
IS61WV51216EEALL-20TLI
44 TSOP (Type II), Lead-free
20
IS61WV51216EEALL-20T2LI
48 TSOP (Type I), ERR1/2 Pins , Lead-free
Industrial Range: -40°C to +85°C, Voltage Range: 2.4V to 3.6V
Speed (ns)
Order Part No.
Package
8
IS61WV51216EEBLL-8BI
mini BGA (6mm x 8mm)
8
IS61WV51216EEBLL-8BLI
mini BGA (6mm x 8mm), Lead-free
8
IS61WV51216EEBLL-8B2I
mini BGA (6mm x 8mm), ERR1/2 Pins
8
IS61WV51216EEBLL-8B2LI
mini BGA (6mm x 8mm), ERR1/2 Pins, Lead-free
8
IS61WV51216EEBLL-8TLI
44 TSOP (Type II), Lead-free
8
IS61WV51216EEBLL-8T2LI
48 TSOP (Type I), ERR1/2 Pins, Lead-free
8
IS61WV51216EEBLL-8T3LI
54 TSOP (Type II), Lead-free
8
IS61WV51216EEBLL-8T4LI
54 TSOP (Type II), ERR1/2 Pins, Lead-free
10
IS61WV51216EEBLL-10BI
mini BGA (6mm x 8mm)
10
IS61WV51216EEBLL-10BLI
mini BGA (6mm x 8mm), Lead-free
10
IS61WV51216EEBLL-10B2I
mini BGA (6mm x 8mm), ERR1/2 Pins
10
IS61WV51216EEBLL-10B2LI
mini BGA (6mm x 8mm), ERR1/2 Pins, Lead-free
10
IS61WV51216EEBLL-10TLI
44 TSOP (Type II), Lead-free
10
IS61WV51216EEBLL-10T2LI
48 TSOP (Type I), ERR1/2 Pins, Lead-free
10
IS61WV51216EEBLL-10T3LI
54 TSOP (Type II), Lead-free
10
IS61WV51216EEBLL-10T4LI
54 TSOP (Type II), ERR1/2 Pins, Lead-free
Automotive Range (A3): –40°C to +125°C, Voltage Range: 2.4V to 3.6V
Speed (ns)
10
10
10
10
10
10
10
10
Order Part No.
IS64WV51216EEBLL-10BA3
IS64WV51216EEBLL-10BLA3
IS64WV51216EEBLL-10B2A3
IS64WV51216EEBLL-10B2LA3
IS64WV51216EEBLL-10CTLA3
IS64WV51216EEBLL-10CT2LA3
IS64WV51216EEBLL-10CT3LA3
IS64WV51216EEBLL-10CT4LA3
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
Package
mini BGA (6mm x 8mm)
mini BGA (6mm x 8mm), Lead-free
mini BGA (6mm x 8mm), ERR1/ERR2 Pins
mini BGA (6mm x 8mm), ERR1/ERR2 Pins, Lead-free
44 TSOP (Type II), Copper Leadframe, Lead-free
48 TSOP (Type I), Copper Leadframe, ERR1/2 Pins , Lead-free
54 TSOP (Type II), Copper Leadframe, Lead-free
54 TSOP (Type II), Copper Leadframe, ERR1/2 Pins , Lead-free
16
IS61WV51216EEALL
IS61/64WV51216EEBLL
PACKAGE INFORMATION
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
17
IS61WV51216EEALL
IS61/64WV51216EEBLL
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
18
IS61WV51216EEALL
IS61/64WV51216EEBLL
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
19
IS61WV51216EEALL
IS61/64WV51216EEBLL
Integrated Silicon Solution, Inc.- www.issi.com
Rev. A1
08/07/2019
20