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W25P243A View Datasheet(PDF) - Winbond

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W25P243A Datasheet PDF : 18 Pages
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W25P243A
64K × 64 BURST PIPELINED HIGH-SPEED
CMOS STATIC RAM
GENERAL DESCRIPTION
The W25P243A is a high-speed, low-power, synchronous-burst pipelined, CMOS static RAM
organized as 65,536 × 64 bits that operates on a single 3.3-volt power supply. A built-in two-bit burst
address counter supports both Pentiumburst mode and linear burst mode. The mode to be
executed is controlled by the LBO pin. Pipelining or non-pipelining of the data outputs is controlled by
the FT pin. A snooze mode can reduce power dissipation.
W25P243A supports 2T/1T mode, while disable data output within one cycle in a burst read when the
device is deselected by CE2/ CE3 .
This device supports 3-1-1-1-2-1-1-1 in a two-bank, back-to-back burst read cycle.
FEATURES
Synchronous operation
High-speed access time: 4.5/5/6 nS (max.)
Single +3.3V power supply
Individual byte write capability
3.3V LVTTL compatible I/O
Clock-controlled and registered input
Asynchronous output enable
Pipelined data output capability
Supports snooze mode (low-power state)
Internal burst counter supports Intel burst
(Interleaved) mode & linear burst mode
Support 2T/1T mode
Packaged in 128-pin QFP and TQFP
BLOCK DIAGRAM
A(15:0)
CLK
CE(3:1)
GW
BWE
BW(8:1)
OE
ADSC
ADSP
ADV
LBO
ZZ
INPUT
REGISTER
CONTROL
LOGIC
REGISTER
64K X 64
CORE
ARRAY
DATA I/O
REGISTER
I/O(64:1)
Publication Release Date: August 1999
-1-
Revision A3
 

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