HMD4M72D18EG
DESCRIPTION
The HMD4M72D18EG is a 4Mx72bits Dynamic RAM high density memory module. The HMD4M72D18EG consists of eighteen CMOS 4Mx4bits DRAMs in SOJ/TSOPІІ 400mil packages mounted on a 168-pin glass-epoxy substrate. A 0.1 or 0.22u F decoupling capacitor is mounted on the printed circuit board for each DRAM. The HMD4M72D18EG is a Dual Inline Memory Module and is intended for mounting into 168 pin edge connector sockets
.. FEATURES
PERFORMANCE RANGE w Part Identification HMD4M72D18EG --- 4KCycles/64ms Ref, Gold Plate Lead SPEED -5 -6 w High-density 32MByte design w New JEDEC standard proposal without buffer w CAS-before-RAS Refresh capability w RAS-only and Hidden refresh capability w Single +5± 0.5V power supply w EDO mode operation. w LVTTL patible inputs and outputs w FR4-PCB design w Access times : 50, 60ns w Timing 50ns access 60ns access w Packages 168-pin DIMM D -5 -6 t RAC 50ns 60ns t CAC 15ns 17ns t RC 84ns 104ns t HPC 20ns 25ns
PIN NAMES
Pin Name A0-A11 A0-A12 Function Address...
