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MSM514256CL

OKI electronic componets
Part Number MSM514256CL
Manufacturer OKI electronic componets
Description DRAM / FAST PAGE MODE TYPE
Published Jul 18, 2006
Detailed Description E2G0010-17-41 ¡ Semiconductor MSM514256C/CL ¡ Semiconductor This version: Jan. 1998 MSM514256C/CL Previous version: Ma...
Datasheet PDF File MSM514256CL PDF File

MSM514256CL
MSM514256CL


Overview
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 60 ns 30 ns 15 ns 15 ns 70 ns 35 ns 20 ns 20 ns Cycle Time Power Dissipation (Min.
) Operating (Max.
) Standby (Max.
) 90 ns 100 ns 120 ns 130 ns 468 mW 446 mW 385 mW 330 mW 5.
5 mW/ 1.
1 mW (L-version) 1/17 ¡ Semiconductor PIN CONFIGURATION (TOP VIEW) DQ1 1 DQ2 2 WE 3 RAS 4 NC 5 A0 6 A1 7 A2 8 A3 9 VCC 10 20 VSS  DQ1 1 19 DQ4 18 DQ3 17 CAS 16 OE 15 A8 14 A7 13 A6 12 A5 11 A4 DQ2 2 WE 3 NC 5 A0 9 RAS 4 A1 10 A2 11 A3 12 VCC 13 Pin Name A0 - A8 RAS CAS DQ1 - DQ4 OE WE VCC VSS NC MSM514256C/CL 2...


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