AS6C4008-55PIN Alliance Memory, AS6C4008-55PIN Datasheet - Page 6

• Manufacturer Part Number: AS6C4008-55PIN
• Description: SRAM 4M, 2.7-5.5V, 55ns 512K x 8 Asynch SRAM
• Manufacturer: Alliance Memory
• Series: AS6C4008r
• Type: SRAMr

Specifications of AS6C4008-55PIN

• Rohs: yes
• Memory Size: 4 Mbit
• Organization: 512 K x 8
• Access Time: 55 ns
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 2.7 V
• Maximum Operating Current: 60 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• Package / Case: PDIP-32
• Interface: TTL
• Memory Type: CMOS
• Factory Pack Quantity: 13

WRITE CYCLE 1 (WE# Controlled) (1,2,3,5,6)
WRITE CYCLE 2 (CE# Controlled) (1,2,5,6)
Notes :
1.WE#, CE# must be high during all address transitions.
2.A write occurs during the overlap of a low CE#, low WE#.
3.During a WE# controlled write cycle with OE# low, t
4.During this period, I/O pins are in the output state, and input signals must not be applied.
5.If the CE# low transition occurs simultaneously with or after WE# low transition, the outputs remain in a high impedance state.
6.t
Address
Address
placed on the bus.
OW
WE#
WE#
Dout
Dout
CE#
CE#
Din
Din
AUG09 v1.4
and t
WHZ
are specified with C
2009
t
AS
t
L
AS
= 5pF. Transition is measured ±500mV from steady state.
512K X 8 BIT LOW POWER CMOS SRAM
t
(4)
WHZ
(4)
t
WHZ
t
WP
Alliance Memory Inc
AW
t
t
AW
must be greater than t
CW
t
WP
t
WP
t
t
t
WC
WC
CW
t
t
DW
DW
High-Z
High-Z
WHZ
Data Valid
Data Valid
+ t
DW
to allow the drivers to turn off and data to be
t
WR
t
t
DH
DH
t
T
WR
OW
(4)
AS6C4008
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