參數(shù)資料
型號(hào): WEDPY256K72V-150BI
廠商: WHITE ELECTRONIC DESIGNS CORP
元件分類: SRAM
英文描述: 256K X 72 MULTI DEVICE SRAM MODULE, 3.8 ns, PBGA159
封裝: 14 X 22 MM, PLASTIC, BGA-159
文件頁(yè)數(shù): 1/11頁(yè)
文件大?。?/td> 532K
代理商: WEDPY256K72V-150BI
1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
WEDPY256K72V-XBX
August 2004
Rev. 7
DESCRIPTION
The WEDPY256K72V-XBX employs high-speed, low-
power CMOS designs that are fabricated using an
advanced CMOS process. The 16Mb Synchronous
SRAMs integrate two 256K x 36 SRAMs into a single
PBGA package to provide 256K x 72 conguration. All
synchronous inputs are controlled by a positive-edge-
triggered single-clock input (CLK). The synchronous inputs
include all addresses, all data inputs, and active LOW chip
selects (CS#). Asynchronous inputs include the output
enable (OE1#/OE2#), clock (CLK).
* This product is subject to change without notice.
256Kx72 Synchronous Pipeline SRAM
FEATURES
Fast clock speed: 100, 133, 150, 166
and 200** MHz
Fast access time: 5.0, 4.0, 3.8, 3.5, 3.1ns
+3.3V power supply (VCC)
+2.5V output buffer supply (VCCQ)
Single-cycle deselect
Common data inputs and data outputs
Clock-controlled and registered addresses, data
I/Os and control signals
SNOOZE MODE for reduced-power standby
Individual BYTE WRITE control and GLOBAL
WRITE
Six chip enables for simple depth expansion and
address pipeline
Internally self-timed WRITE cycle
Burst control (interleaved or linear burst)
Packaging:
159-bump PBGA package, 14mm x 22mm
Commercial, industrial, and military temperature
ranges
User congurable as 512K x 36, or 1M x 18
**200 MHz for commercial and industrial temperature only.
FIGURE 1 – BLOCK DIAGRAM
SA0-17
ADSC#
ADSP#
ADV#
BWa#
BWb#
BWc#
BWd#
BWE#
CS11#
CS21#
CS21
CLK
GW#
MODE
OE1#
ZZ
A0-17
ADSC#
ADSP#
ADV#
BWa#
BWb#
BWc#
BWd#
WE#
CS1#
CS2#
CS2
CLK
GW#
MODE
OE#
ZZ
A0-17
ADSC#
ADSP#
ADV#
BWa#
BWb#
BWc#
BWd#
WE#
CS1#
CS2#
CS2
CLK
GW#
MODE
OE#
ZZ
256Kx36
SSRAM
IC1
DQ0-35
DQ36-71
256Kx36
SSRAM
IC2
BWe#
BWf#
BWg#
BWh#
CS11#
CS22#
CS22
OE2#
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