AS4LC4M4F1
®
CAS-before-RAS self refresh cycle
tRP
tRASS
tRPS
RAS
tRPC
tCP
tRPC
tCSR
tCHS
CAS
CAS
tCEZ
DQ
Capacitance 15
ƒ = 1 MHz, Ta = Room temperature
Parameter
Symbol
CIN1
Signals
Test conditions
Vin = 0V
Max
5
Unit
pF
A0 to A10
Input capacitance
DQ capacitance
CIN2
RAS, CAS, WE, OE
DQ0 to DQ03
Vin = 0V
7
pF
CDQ
Vin = Vout = 0V
7
pF
AS4LC4M4F1 ordering information
Package \ RAS access time
50 ns
60 ns
AS4LC4M4F1-50JC
AS4LC4M4F1-50JI
AS4LC4M4F1-60JC
AS4LC4M4F1-60JI
Plastic SOJ, 300 mil, 24/26-pin
3.3V
3.3V
AS4LC4M4F1-50TC
AS4LC4M4F1-50TI
AS4LC4M4F1-60TC
AS4LC4M4F1-60TI
Plastic TSOP, 300 mil, 24/26-pin*
* Shading indicates availability is TBD.
AS4LC4M4F1 family part numbering system
AS4
LC
4M4
F1
–XX
X
X
Package:
J = SOJ 300 mil, 24/26
T = TSOP 300 mil, 24/26* I=Industrial, -40°C to 85°C
Temperature range
C=Commercial, 0°C to 70 °C
DRAM
prefix
LC = 3.3V
CMOS
4M×4 F1=2K refresh RAS access time
5/16/01; v.1.0 Restored
Alliance Semiconductor
P. 14 of 14
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