IS64WV25616EDBLL-10CTLA3 数据手册
IS61WV25616EDBLL
IS64WV25616EDBLL
256K x 16 HIGH SPEED ASYNCHRONOUS
CMOS STATIC RAM WITH ECC
FEATURES
• High-speed access time: 8, 10 ns
• Low Active Power: 85 mW (typical)
• Low Standby Power: 7 mW (typical)
CMOS standby
• Single power supply
— Vdd 2.4V to 3.6V (10 ns)
— Vdd 3.3V ± 10% (8 ns)
• Fully static operation: no clock or refresh
required
• Three state outputs
• Data control for upper and lower bytes
• Industrial and Automotive temperature support
• Lead-free available
• Error Detection and Error Correction
JULY 2020
DESCRIPTION
The ISSI IS61/64WV25616EDBLL is a high-speed,
4,194,304-bit static RAMs organized as 262,144 words
by 16 bits. It is fabricated using ISSI's high-performance
CMOS technology. This highly reliable process coupled
with innovative circuit design techniques, yields highperformance and low power consumption devices.
When CE 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, CE and OE. 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 IS61/64WV25616EDBLL is packaged in the JEDEC
standard 44-pin TSOP-II and 48-pin Mini BGA (6mm x
8mm).
FUNCTIONAL BLOCK DIAGRAM
Memory
Lower IO
Array256Kx8
A0-A17
Decoder
8
IO0-7
IO8-15
/CE
/OE
/WE
/UB
/LB
8
8
I/O Data
Circuit
8
ECC
ECC
12
12
8
ECC
Array256K
x4
4
Memory
ECC
Array256K
x4
Upper IO
Array256Kx8
8
4
Column I/O
Control
Circuit
Copyright © 2020 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 1
Rev. A2
07/14/2020
IS61/64WV25616EDBLL
TRUTH TABLE
Mode
Not Selected
Output Disabled
Read
Write
I/O PIN
WE CE
OE
LB UB
I/O0-I/O7 I/O8-I/O15 Vdd Current
X H X X X
High-Z
High-Z
Isb1, Isb2
H
L
H
X
X
High-Z
High-Z
Icc
X L X H H
High-Z
High-Z
H L L L H
Dout High-Z
Icc
H L L H L
High-Z
Dout
H
L
L
L
L Dout Dout
L L X L H
Din High-Z
Icc
L L X H L
High-Z
Din
L
L
X
L
L Din Din
PIN CONFIGURATIONS
44-Pin TSOP (Type II)
A0
A1
A2
A3
A4
CE
I/O0
I/O1
I/O2
I/O3
VDD
GND
I/O4
I/O5
I/O6
I/O7
WE
A5
A6
A7
A8
A9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
PIN DESCRIPTIONS
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A17
A16
A15
OE
UB
LB
I/O15
I/O14
I/O13
I/O12
GND
VDD
I/O11
I/O10
I/O9
I/O8
NC
A14
A13
A12
A11
A10
A0-A17
Address Inputs
I/O0-I/O15
Data Inputs/Outputs
CE
Chip Enable Input
OE
Output Enable Input
WE
Write Enable Input
LB
Lower-byte Control (I/O0-I/O7)
UB
Upper-byte Control (I/O8-I/O15)
NC
No Connection
Vdd Power
GND Ground
*SOJ package under evaluation.
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IS61/64WV25616EDBLL
PIN CONFIGURATIONS
44-Pin LQFP*
48-Pin mini BGA (6mm x 8mm)
2
3
4
5
6
A17
A16
A15
A14
A13
A12
A11
A10
OE
UB
LB
1
44 43 42 41 40 39 38 37 36 35 34
33
1
32
2
31
3
30
4
29
5
TOP VIEW
28
6
27
7
26
8
25
9
24
10
23
11
12 13 14 15 16 17 18 19 20 21 22
I/O15
I/O14
I/O13
I/O12
GND
VDD
I/O11
I/O10
I/O9
I/O8
NC
2
3
A
LB
OE
A0
A1
A2
N/C
B
I/O8
UB
A3
A4
CE
I/O0
C
I/O9
I/O10
A5
A6
I/O1
I/O2
D
GND
I/O11
A17
A7
I/O3
VDD
E
VDD
I/O12
NC
A16
I/O4
GND
F
I/O14
I/O13
A14
A15
I/O5
I/O6
G
I/O15
NC
A12
A13
WE
I/O7
H
NC
A8
A9
A10
A11
NC
WE
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
CE
I/O0
I/O1
I/O2
I/O3
VDD
GND
I/O4
I/O5
I/O6
I/O7
1
*LQFP package under evaluation.
PIN DESCRIPTIONS
A0-A17
Address Inputs
I/O0-I/O15
Data Inputs/Outputs
CE
Chip Enable Input
OE
Output Enable Input
WE
Write Enable Input
LB
Lower-byte Control (I/O0-I/O7)
UB
Upper-byte Control (I/O8-I/O15)
NC
No Connection
Vdd Power
GND Ground
4
5
6
7
8
9
10
11
12
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Rev. A2
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IS61/64WV25616EDBLL
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Parameter
Vterm
Terminal Voltage with Respect to GND
Vdd
Vdd Relates to GND
Tstg
Storage Temperature
Pt
Power Dissipation
Value
–0.5 to Vdd + 0.5
–0.3 to 4.0
–65 to +150
1.0
Unit
V
V
°C
W
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.
CAPACITANCE(1,2)
Symbol
Cin
CI/O
Parameter
Input Capacitance
Input/Output Capacitance
Conditions
Vin = 0V
Vout = 0V
Max.
Unit
6 pF
8 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.
ERROR DETECTION AND ERROR CORRECTION
•
•
•
•
Independent ECC for each byte
Detect and correct one bit error per byte
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)
OPERATING RANGE (Vdd)1
Range
Ambient Temperature
Industrial
–40°C to +85°C
Automotive (A1)
–40°C to +85°C
Automotive (A3) –40°C to +125°C
IS61WV25616EDBLL
Vdd (8, 10ns)
2.4V-3.6V (10ns)
3.3V ± 10% (8ns)
—
—
IS64WV25616EDBLL
Vdd (10ns)
—
2.4V-3.6V
2.4V-3.6V
Note:
1. Contact SRAM@issi.com for 1.8V option
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Rev. A2
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IS61/64WV25616EDBLL
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)
Vdd = 3.3V + 10%
Symbol
Voh
Vol
Vih
Vil
Ili
Ilo
Parameter
Test Conditions
Output HIGH Voltage
Vdd = Min., Ioh = –4.0 mA
Output LOW Voltage
Vdd = Min., Iol = 8.0 mA
Input HIGH Voltage
Input LOW Voltage(1)
Input Leakage
GND ≤ Vin ≤ Vdd
Output Leakage
GND ≤ Vout ≤ Vdd, Outputs Disabled
Min. Max. Unit
2.4
—
V
—
0.4
V
2
Vdd + 0.3
V
–0.3 0.8 V
–1 1 µA
–1
1
µA
Note:
1. Vil (min.) = –0.3V DC; Vil (min.) = –2.0V AC (pulse width < 2 ns). Not 100% tested.
Vih (max.) = Vdd + 0.3V DC; Vih (max.) = Vdd + 2.0V AC (pulse width < 2 ns). Not 100% tested.
Symbol
Voh
Vol
Vih
Vil
Ili
Ilo
Parameter
Test Conditions
Output HIGH Voltage
Vdd = Min., Ioh = –1.0 mA
Output LOW Voltage
Vdd = Min., Iol = 1.0 mA
Input HIGH Voltage
Input LOW Voltage(1)
Input Leakage
GND ≤ Vin ≤ Vdd
Output Leakage
GND ≤ Vout ≤ Vdd, Outputs Disabled
Min. Max. Unit
1.8
—
V
—
0.4
V
2.0
Vdd + 0.3
V
–0.3 0.8 V
–1 1 µA
–1
1
µA
Note:
1. Vil (min.) = –0.3V DC; Vil (min.) = –2.0V AC (pulse width < 2 ns). Not 100% tested.
Vih (max.) = Vdd + 0.3V DC; Vih (max.) = Vdd + 2.0V AC (pulse width < 2 ns). Not 100% tested.
POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)
-8 -10 -20
Symbol Parameter
Test Conditions Min. Max.
Min. Max.
Min. Max.
Unit
Icc
Vdd Dynamic Operating Vdd = Max.,
Com. — 40
— 30
— 25
mA
Supply Current
Iout = 0 mA, f = fmax
Ind.
—
45 — 35 —
30
Auto. — —
— 50
— 45
typ.(2) 21 21
Icc1
Operating
Vdd = Max.,
Com. — 20
— 20
— 20
mA
Supply Current
Iout = 0 mA, f = 0
Ind.
—
25 — 25 —
25
Auto. — —
— 40
— 40
Isb1
TTL Standby Current
Vdd = Max.,
Com. — 10
— 10
— 10
mA
(TTL Inputs)
Vin = Vih or Vil
Ind. — 15
— 15
— 15
CE ≥ Vih, f = 0
Auto. — —
— 30
— 30
Isb2
CMOS Standby
Vdd = Max.,
Com. — 5
— 5
— 5 mA
Current (CMOS Inputs) CE ≥ Vdd – 0.2V,
Ind. — 6
— 6
— 6
Vin ≥ Vdd – 0.2V, or
Auto. — —
— 15
— 15
Vin ≤ 0.2V, f = 0
typ.(2) 1.5 1.5
Note:
1. At f = fmax, address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.
2. Typical values are measured at Vdd = 3.0V, Ta = 25oC and not 100% tested.
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Rev. A2
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3
4
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)
Vdd = 2.4V-3.6V
1
5
6
7
8
9
10
11
12
IS61/64WV25616EDBLL
AC TEST CONDITIONS
Parameter Unit
(2.4V-3.6V)
Input Pulse Level
0.4V to Vdd-0.3V
Input Rise and Fall Times
1V/ ns
Input and Output Timing
Vdd/2
and Reference Level (VRef)
Output Load
See Figures 1 and 2
AC TEST LOADS
319 Ω
ZO = 50Ω
3.3V
50Ω
1.5V
OUTPUT
30 pF
Including
jig and
scope
Figure 1.
OUTPUT
353 Ω
5 pF
Including
jig and
scope
Figure 2.
READ CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range)
-8 -10 -20
Symbol
Parameter
Min. Max.
Min. Max.
Min. Max.
trc
Read Cycle Time
8 —
10 —
20 —
taa
Address Access Time
— 8
— 10
— 20
toha
Output Hold Time
2.0 —
2.0 —
2.5 —
tace
CE Access Time
— 8
— 10
— 20
tdoe
OE Access Time
— 4.5
— 4.5
— 8
OE to High-Z Output
— 3
— 4
0 8
thzoe(2)
(2)
tlzoe
OE to Low-Z Output
0 —
0 —
0 —
thzce(2
CE to High-Z Output
0 3
0 4
0 8
tlzce(2)
CE to Low-Z Output
3 —
3 —
3 —
tba
LB, UB Access Time
— 5.5
— 6.5
— 8
thzb(2)
LB, UB to High-Z Output
0 3
0 3
0 8
tlzb(2)
LB, UB to Low-Z Output
0 —
0 —
0 —
tpu
Power Up Time
0 —
0 —
0 —
tpd
Power Down Time
— 8
— 10
— 20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes:
1. Test conditions and output loading conditions are specified in the AC Test Conditions and AC Test Loads (Figure 1).
2. Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage.
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Rev. A2
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IS61/64WV25616EDBLL
1
AC WAVEFORMS
READ CYCLE NO. 1(1,2) (Address Controlled) (CE = OE = Vil, UB or LB = Vil)
2
t RC
ADDRESS
t OHA
DOUT
t AA
3
t OHA
DATA VALID
PREVIOUS DATA VALID
READ1.eps
4
5
READ CYCLE NO. 2
(1,3)
6
tRC
ADDRESS
tAA
tOHA
7
OE
tHZOE
tDOE
tLZOE
CE
tACE
tLZCE
8
tHZCE
LB, UB
DOUT
VDD
Supply
Current
HIGH-Z
tBA
tLZB
tHZB
tRC
9
DATA VALID
tPU
50%
tPD
50%
ICC
ISB
UB_CEDR2.eps
Notes:
1. WE is HIGH for a Read Cycle.
2. The device is continuously selected. OE, CE, UB, or LB = Vil.
3. Address is valid prior to or coincident with CE LOW transition.
10
11
12
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Rev. A2
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IS61/64WV25616EDBLL
WRITE CYCLE SWITCHING CHARACTERISTICS(1,3) (Over Operating Range)
-8 -10 -20
Symbol
Parameter Min. Max. Min. Max.
Min. Max.
Unit
twc
Write Cycle Time 8 — 10 —
20 —
ns
tsce
CE to Write End 6.5 — 8 —
12 —
ns
taw
Address Setup Time 6.5 — 8 —
12 —
ns
to Write End
tha
Address Hold from Write End 0 — 0 —
0 —
ns
tsa
Address Setup Time 0 — 0 —
0 —
ns
tpwb
LB, UB Valid to End of Write 6.5 — 8 —
12 —
ns
tpwe1
WE Pulse Width 6.5 — 8 —
12 —
ns
tpwe2
WE Pulse Width (OE = LOW) 8 — 10 —
17 —
ns
tsd
Data Setup to Write End 5 — 6 —
9 —
ns
thd
Data Hold from Write End 0 — 0 —
0 — ns
thzwe(2) WE LOW to High-Z Output — 3.5 — 5
— 9
ns
(2)
tlzwe
WE HIGH to Low-Z Output 2 — 2 —
3 —
ns
Notes:
1. Test conditions and output loading conditions are specified in the AC Test Conditions and AC Test Loads (Figure 1).
2. Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
3. The internal write time is defined by the overlap of CE LOW and UB or LB, and WE LOW. All signals must be in valid states
to initiate a Write, but any one 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. Shaded area product in development
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Rev. A2
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IS61/64WV25616EDBLL
1
AC WAVEFORMS
WRITE CYCLE NO. 1 (CE Controlled, OE is HIGH or LOW)
(1 )
2
t WC
VALID ADDRESS
ADDRESS
t SA
t SCE
t HA
3
CE
t AW
t PWE1
t PWE2
WE
4
t PWB
UB, LB
t HZWE
DOUT
t LZWE
HIGH-Z
DATA UNDEFINED
t SD
5
t HD
DATAIN VALID
DIN
UB_CEWR1.eps
Notes:
1. WRITE is an internally generated signal asserted during an overlap of the LOW states on the CE and WE inputs and at least
one of the LB and UB inputs being in the LOW state.
2. WRITE = (CE) [ (LB) = (UB) ] (WE).
6
7
8
WRITE CYCLE NO. 2 (WE Controlled. OE is HIGH During Write Cycle) (1,2)
t WC
ADDRESS
9
VALID ADDRESS
t HA
OE
CE
10
LOW
t AW
t PWE1
WE
t SA
t PWB
11
UB, LB
t HZWE
DOUT
DATA UNDEFINED
t LZWE
HIGH-Z
t SD
DIN
t HD
DATAIN VALID
UB_CEWR2.eps
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Rev. A2
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IS61/64WV25616EDBLL
AC WAVEFORMS
WRITE CYCLE NO. 3 (WE Controlled. OE is LOW During Write Cycle) (1)
t WC
ADDRESS
VALID ADDRESS
OE
LOW
CE
LOW
t HA
t AW
t PWE2
WE
t SA
t PWB
UB, LB
t HZWE
DOUT
t LZWE
HIGH-Z
DATA UNDEFINED
t SD
t HD
DATAIN VALID
DIN
UB_CEWR3.eps
WRITE CYCLE NO. 4 (LB, UB Controlled, Back-to-Back Write) (1,3)
t WC
ADDRESS
t WC
ADDRESS 1
ADDRESS 2
OE
t SA
CE
LOW
t HA
t SA
WE
UB, LB
t HA
t PWB
t PWB
WORD 1
WORD 2
t HZWE
DOUT
t LZWE
HIGH-Z
DATA UNDEFINED
t HD
t SD
DIN
DATAIN
VALID
t HD
t SD
DATAIN
VALID
UB_CEWR4.eps
Notes:
1. The internal Write time is defined by the overlap of CE = LOW, UB and/or LB = LOW, and WE = LOW. All signals must be in
valid states to initiate a Write, but any can be deasserted to terminate the Write. The t sa, t ha, t sd, and t hd timing is referenced
to the rising or falling edge of the signal that terminates the Write.
2. Tested with OE HIGH for a minimum of 4 ns before WE = LOW to place the I/O in a HIGH-Z state.
3. WE may be held LOW across many address cycles and the LB, UB pins can be used to control the Write function.
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Rev. A2
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IS61/64WV25616EDBLL
HIGH SPEED (IS61/64WV25616EDBLL)
1
DATA RETENTION SWITCHING CHARACTERISTICS (2.4V-3.6V)
Symbol Parameter
Test Condition
Options
Min.
Typ.(1) Max. Unit
Vdr Vdd for Data Retention
See Data Retention Waveform
2.0
—
3.6
V
Idr
Data Retention Current
Vdd = 2.0V, CE ≥ Vdd – 0.2V
Com.
—
0.5
5
mA
Ind.
—
—
6
Auto.
15
tsdr
Data Retention Setup Time See Data Retention Waveform
0
—
—
ns
trdr
Recovery Time
See Data Retention Waveform
trc — — ns
Note 1: Typical values are measured at Vdd = Vdr(min), Ta = 25 C and not 100% tested.
2
3
o
4
DATA RETENTION WAVEFORM (CE Controlled)
5
tSDR
Data Retention Mode
tRDR
VDD
6
VDR
7
CE
GND
CE ≥ VDD - 0.2V
8
9
10
11
12
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Rev. A2
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IS61/64WV25616EDBLL
ORDERING INFORMATION (HIGH SPEED)
Industrial Range: -40°C to +85°C
Speed (ns)
8
10
Order Part No.
IS61WV25616EDBLL-8BLI
IS61WV25616EDBLL-8TLI
IS61WV25616EDBLL-10BLI
IS61WV25616EDBLL-10TLI
Package
48 mini BGA (6mm x 8mm), Lead-free
TSOP (Type II), Lead-free
48 mini BGA (6mm x 8mm), Lead-free
TSOP (Type II), Lead-free
Automotive (A1) Range: -40°C to +85°C
Speed (ns)
10
Order Part No.
Package
IS64WV25616EDBLL-10BLA1
48 mini BGA (6mm x 8mm), Lead-free
IS64WV25616EDBLL-10CTLA1 TSOP (Type II), Lead-free, Copper Leadframe
Automotive (A3) Range: -40°C to +125°C
Speed (ns)
10
12
Order Part No.
Package
IS64WV25616EDBLL-10BLA3 48 mini BGA (6mm x 8mm), Lead-free
IS64WV25616EDBLL-10CTLA3 TSOP (Type II), Lead-free, Copper Leadframe
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Rev. A2
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Rev. A2
07/14/2020
Θ
Package Outline
06/04/2008
3. DIMENSION b DOES NOT INCLUDE DAMBAR PROTRUSION/INTRUSION.
2. DIMENSION D AND E1 DO NOT INCLUDE MOLD PROTRUSION.
1. CONTROLLING DIMENSION : MM
NOTE :
Θ
IS61/64WV25616EDBLL
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1
2
3
4
5
6
7
8
9
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Package Outline
08/12/2008
1. CONTROLLING DIMENSION : MM .
2. Reference document : JEDEC MO-207
NOTE :
IS61/64WV25616EDBLL
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Rev. A2
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