IS61WV5128ALL/ALS
IS61WV5128BLL/BLS
IS64WV5128BLL/BLS
512K x 8 HIGH-SPEED ASYNCHRONOUS CMOS STATIC RAM
AUGUST 2009
FEATURES DESCRIPTION
HIGH SPEED: (IS61/64WV5128ALL/BLL)
The ISSI IS61WV5128Axx and IS61/64WV5128Bxx
are very high-speed, low power, 524,288-word by
High-speed access time: 8, 10, 20 ns
8-bit CMOS static RAMs. The IS61WV5128Axx and
Low Active Power : 85 mW (typical)
IS61/64WV5128Bxx are fabricated using ISSI's high-
Low stand-by power : 7 mW (typical)
performance CMOS technology. This highly reliable pro-
CMOS standby
cess coupled with innovative circuit design techniques,
yields higher performance and low power consumption
LOW POWER: (IS61/64WV5128ALS/BLS)
devices.
High-speed access time: 25, 35 ns
When CE is HIGH (deselected), the device assumes
Low Active Power : 35 mW (typical)
a standby mode at which the power dissipation can be
Low stand-by power : 0.6 mW (typical)
reduced down with CMOS input levels.
CMOS standby
The IS61WV5128Axx and IS61/64WV5128Bxx operate
Single power supply
from a single power supply.
Vdd 1.65V to 2.2V (IS61WV5128Axx)
The IS61WV5128ALL and IS61/64WV5128BLL are avail-
Vdd 2.4V to 3.6V (IS61/64WV5128Bxx)
able in 36-pin 400-mil SOJ, 36-pin mini BGA, and 44-pin
TSOP (Type II) packages.
Fully static operation: no clock or refresh
required
The IS61WV5128ALS and IS61/64WV5128BLS are
available in 32-pinTSOP (Type I), 32-pin sTSOP (Type I),
Three state outputs
32-pin SOP and 32-pin TSOP (Type II) packages.
Industr ial and Automotive temperature suppor t
Lead-free available
FUNCTIONAL BLOCK DIAGRAM
512K X 8
A0-A18 DECODER
MEMORY ARRAY
VDD
GND
I/O
COLUMN I/O
I/O0-I/O7 DATA
CIRCUIT
CE
CONTROL
OE
CIRCUIT
WE
Copyright 2006 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 lat-
est version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. www.issi.com 1
Rev. I
08/10/09IS61WV5128ALL/ALS, IS61WV5128BLL/BLS
IS64WV5128BLL/BLS
PIN CONFIGURATION (HIGH SPEED) (61/64WV5128ALL/BLL)
36 mini BGA 44-Pin TSOP (Type II)
1 2 3 4 5 6
NC 1 44 NC
NC 2 43 NC
A0 3 42 NC
A1 4 41 A18
A2 5 40 A17
A3 6 39 A16
A A0 A1 NC A3 A6 A8
A4 7 38 A15
B I/O4 A2 WE A4 A7 I/O0 CE 8 37 OE
I/O0 9 36 I/O7
C I/O5 NC A5 I/O1
I/O1 10 35 I/O6
GND VDD 34 GND
D VDD 11
GND 12 33 VDD
VDD GND
E
32
I/O2 13 I/O5
F I/O6 A18 A17 I/O2 I/O3 14 31 I/O4
WE 15 30 A14
I/O7 OE CE A16 A15 I/O3
G
A5 16 29 A13
A9 A10 A12 A13 A14
A11 A6 17 28 A12
H
A7 18 27 A11
A8 19 26 A10
A9 20 25 NC
NC 21 24 NC
NC 22 23 NC
36-Pin SOJ
PIN DESCRIPTIONS
A0 1 36 NC
A0-A18 Address Inputs
A1 2 35 A18
CE Chip Enable Input
A2 3 34 A17
OE Output Enable Input
A3 4 33 A16
WE Write Enable Input
A4 5 32 A15
I/O0-I/O7 Bidirectional Ports
CE 6 31 OE
I/O0 7 30 I/O7
Vdd Power
I/O1 8 29 I/O6
GND Ground
VDD 9 28 GND
NC No Connection
GND 10 27 VDD
I/O2 11 26 I/O5
25
I/O3 12 I/O4
WE 13 24 A14
14 23
A5 A13
A6 15 22 A12
A7 16 21 A11
A8 17 20 A10
A9 18 19 NC
2 Integrated Silicon Solution, Inc. www.issi.com
Rev. I
08/10/09