AS4C4M4F0
AS4C4M4F1
®
Logic block diagram for 2K refresh
Data
I/O
buffers
VCC
Column decoder
Sense amp
GND
I/O0 to I/O3
RAS clock
generator
RAS
CAS
A0
A1
A2
A3
A4
A5
A6
A7
A8
OE
2048 × 2048 × 4
Array
CAS clock
generator
(16,777,216)
A9
A10
Substrate bias
generator
WE clock
generator
WE
Recommended operating conditions
Parameter
Symbol
VCC
Min
4.5
0.0
2.4
–0.5†
0
Nominal
Max
Unit
V
5.0
0.0
–
5.5
0.0
VCC
0.8
70
Supply voltage
Input voltage
GND
VIH
V
V
VIL
–
V
Commercial
Industrial
–
Ambient operating temperature
TA
°C
-40
–
85
†
V
min -3.0V for pulse widths less than 5 ns. Recommended operating conditions apply throughout this document unlesss otherwise specified.
IL
4/11/01; v.0.9
Alliance Semiconductor
P. 3 of 18
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
