AS4C1M16E5
®
Absolute maximum ratings
Parameter
Symbol
Vin
Min
-1.0
-1.0
-1.0
-65
–
Max
Unit
Input voltage
+7.0
VCC + 0.5
+7.0
+150
260 × 10
1
V
Input voltage (DQs)
VDQ
V
Power supply voltage
Storage temperature (plastic)
Soldering temperature × time
Power dissipation
VCC
V
TSTG
°C
oC × sec
TSOLDER
PD
–
W
Short circuit output current
Iout
–
50
mA
Truth table
Addresses
Operation
Standby
RAS
LCAS
H to X
L
UCAS
H to X
L
WE
X
OE
X
tR
tC
X
DQ0 to DQ15
High-Z
Notes
H
L
X
Word read
H
L
ROW
COL
Data out
Lower byte
read
Lower byte,
Upper byte, Data out
L
L
L
L
L
L
H
L
H
L
H
H
L
L
L
ROW
ROW
ROW
ROW
ROW
COL
COL
COL
COL
COL
Upper byte
read
Lower byte,
Data out, Upper byte
Word
(early) write
L
X
X
X
Data in
Lower byte
(early) write
Lower byte, Data in,
Upper byte, High-Z
L
H
L
L
Upper byte
(early) write
Lower byte, High-Z,
Upper byte, Data in
H
L
Read write
EDO read
L
L
L
L
L
L
L
L
L
L
H to L L to H ROW
COL
COL
COL
n/a
Data out, Data in
Data out
1,2
2
1st cycle
2nd cycle
Any cycle
1st cycle
2nd cycle
1st cycle
2nd cycle
H to L
H to L
L to H
H to L
H to L
H to L
H to L
H to L
H to L
L to H
H to L
H to L
H
H
H
L
L
L
ROW
n/a
Data out
2
L
n/a
Data out
2
X
X
ROW
n/a
COL
COL
COL
COL
Data in
1
EDO write
L
Data in
1
H to L H to L L to H ROW
Data out, Data in
Data out, Data in
1,2
1,2
EDO
read write
H to L H to L L to H
n/a
ROW
X
RAS only
refresh
L
H
L
H
L
X
X
X
n/a
X
High Z
High Z
CBR refresh
H to L
H
3
4/11/01; v.1.0
Alliance Semiconductor
P. 3 of 22