MSM514256CL

E2G0010-17-41 ¡ Semiconductor MSM514256C/CL ¡ Semiconductor This version: Jan. 1998 MSM514256C/CL Previous version: May 1997 262,144-Word ¥ 4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE DESCRIPTION The MSM514256C/CL is a 262,144-word ¥ 4-bit dynamic RAM fabricated in Oki's silicon-gate CMOS technology. The MSM514256C/CL achieves high integration, high-speed operation, and low-power consumption because Oki manufactures the device in a quadruple-layer polysilicon/single-layer metal CMOS process. The MSM514256C/CL is available in a 20-pin plastic DIP, 26/20-pin plastic SOJ, or 20-pin plastic ZIP. The MSM514256CL (the low-power version) is specially designed for lower-power applications. FEATURES 262,144-word ¥ 4-bit configuration Single 5 V power supply, ± 10% tolerance Input : TTL compatible, low input capacitance Output : TTL compatible, 3-state Refresh : 512 cycles/8 ms, 512 cycles/64 ms (L-version) Fast page mode, read modify write capability CAS before RAS refresh, hidden refresh, RAS-only refresh capability Package options: 20-pin 300 mil plastic DIP (DIP20-P-300-2.54-W1) (Product : MSM514256C/CL-xxRS) 26/20-pin 300 mil plastic SOJ (SOJ26/20-P-300-1.27) (Product : MSM514256C/CL-xxJS) 20-pin 400 mil plastic ZIP (ZIP20-P-400-1.27) (Product : MSM514256C/CL-xxZS) xx indicates speed rank. PRODUCT FAMILY Family MSM514256C/CL-45 MSM514256C/CL-50 MSM514256C/CL-60 MSM514256C/CL-70 Access Time (Max.) tRAC tAA tCAC tOEA 45 ns 24 ns 14 ns 14 ns 50 ns 26 ns 14 ns 14 ns ...