October 2000
Copyright ©2000 Alliance Semiconductor. All rights reserved.
®
AS6UA5128
10/6/00 ALLIANCE SEMICONDUCTOR 1
2.3V to 3.6V 512K×8 Intelliwatt low-power CMOS SRAM
Features
• AS6UA5128
Intelliwatt™ active power circuitry
Industrial and commercial temperature ranges available
Organization: 524,288 words × 8 bits
2.7V to 3.6V at 55 ns
2.3V to 2.7V at 70 ns
Low power consumption: ACTIVE
- 144 mW at 3.6V and 55 ns
- 68 mW at 2.7V and 70 ns
Low power consumption: STANDBY
- 72 µW max at 3.6V
- 41 µW max at 2.7V
- 28 µW max at 2.3V
1.2V data retention
Equal access and cycle times
Easy memory expansion with CS, OE inputs
Smallest footprint packages
- 36(48)-ball FBGA
- 32-pin TSOP I and TSOP II packages are available on
Alliance AS6UB5128 product family (available January
2001)
ESD protection ≥ 2000 volts
Latch-up current ≥ 200 mA
Logic block diagram
Se
ns
e am
p
Input buffer
A1
0
A1
1
A1
2
A1
3
A1
4
A1
5
A1
6
I/O1
I/O8
OE
CS
WE
Row
de
co
de
r
Control
circuit
A9
A0
A1
A2
A3
A4
A5
A6
A7
V
CC
GND
A8
Column decoder
512K×8
Array
(4,194,304)
Pin arrangement
36(48)-CSP BGA Package (shading indicates no ball)
123456
AA
0
A
1
NC A
3
A
6
A
8
BI/O5A
2
WE A
4
A
7
I/O
1
CI/O6 NC A
5
I/O
2
DV
SS
V
CC
EV
CC
V
SS
FI/O7 A
18
A
17
I/O3
GI/O8OE CS A
16
A
15
I/O4
HA
9
A
10
A
11
A
12
A
13
A
14
Selection guide
Product
V
CC
Range
Speed
(ns)
Power Dissipation
Min
(V)
Typ
2
(V)
Max
(V)
Operating (I
CC
) Standby (I
SB1
)
Max (mA) Max (µA)
AS6UA5128 2.7 3.0 3.6 55 2 20
AS6UA5128 2.3 2.5 2.7 70 1 15