EDI2GG46464V12D中文资料
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White Electronic Designs Corporation • (508) 366-5151 •
February 1999 Rev. 2ECO# 10858
4x64Kx64, 3.3V Synchronous SRAM CARD EDGE DIMM
FEATURES
s 4x64Kx64 Synchronous
s Access Speed(s): T KHQV = 9.5, 10, 11,12, 15ns s Flow-Through Architecture
s Clock Controlled Registered Bank Enables (E 1\,E 2\, E 3\, E 4\)s Clock Controlled Registered Address
s Clock Controlled Registered Global Write (GW\)s Aysnchronous Output Enable (G\)s Internally self-timed Write+s Gold Lead Finish s 3.3V ±10%, -5% Operation s Common Data I/O
s High Capacitance (30pF) drive, at rated Access Speed s Single total array Clock s Multiple Vcc and Vss
The EDI2GG46464VxxD is a Synchronous SRAM, 60 position Dual Key; Card Edge DIMM (120 contacts) Module, organized as 4x64Kx64. The Module contains eight (8) Synchronous Burst Ram Devices, packaged in the industry standard JEDEC 14mmx20mm TQFP placed on a Multilayer FR4 Substrate. The module architecture is defined as a Synchronous Only, Flow-Through, Early Write device. This Module provides high performance, ultra fast access times at a cost per bit benefit over BiCMOS Asynchronous devices.As well as improved cost per bit, the use of Synchronous or Synchronous burst devices or modules can ease the memory subsystem design by reducing or easing the memory controller requirement.
Synchronous operations are in relation to an externally supplied clock, registered address, registered global write, registered enables as well as an Asynchronous Output enable. All Read and Write operations are performed in Quad Words (64 bit operations).Write cycles are internally self timed and are initiated by a rising clock edge. This feature relieves the designer the task of developing external pulse width circuitry.
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White Electronic Designs Corporation • (508) 366-5151 •
PIN CONFIGURATION
VSS VSS A0A1A15A2A14A3A13VCC VCC A4A12A5A6A7VSS A8VSS CLK VSS E 4\VCC E 3\G\VSS DQ0DQ1DQ2DQ3VCC DQ8DQ9DQ10DQ16DQ17DQ18DQ19VCC DQ24DQ25DQ26DQ27VSS DQ32DQ33DQ34DQ35VCC DQ40DQ41DQ42DQ43VSS DQ48DQ49DQ50DQ51VCC DQ56DQ57DQ58DQ59VSS
1113151719VSS DQ11A11A10A9VSS RFU VSS NC 16141210VSS E 2\VCC E1\G W\VSS DQ7DQ6DQ5DQ4VCC DQ15
DQ14DQ13DQ12VSS DQ23DQ22DQ21DQ20VCC DQ31DQ30DQ29DQ28VSS DQ39DQ38DQ37DQ36VCC DQ47DQ46DQ45DQ44VSS DQ55DQ54DQ53DQ52VCC DQ63DQ62DQ61DQ60VSS
NC 135798642212325272826242220182931333537394143454749515250484644424038363430325355575961636567697173545658606264666870727475777981838587899193767880828486889092949698100102104106108110112114116959799101103105107109111113115117119118120