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WS27C256L Datasheet(PDF) 1 Page - STMicroelectronics |
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WS27C256L Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 5 page PRODUCT SELECTION GUIDE PARAMETER WS27C256L-12 WS27C256L-15 WS27C256L-20 Address Access Time (Max) 120 ns 150 ns 200 ns Chip Select Time (Max) 120 ns 150 ns 200 ns Output Enable Time (Max) 35 ns 40 ns 40 ns WS27C256L TOP VIEW Chip Carrier CERDIP PIN CONFIGURATION 4-19 Military 32K x 8 CMOS EPROM KEY FEATURES • High Performance CMOS • Ceramic Leadless Chip Carrier (CLLCC) — 120 ns Access Time • EPI Processing • Fast Programming — Latch-Up Immunity to 200 mA • DESC SMD No. 5962-86063 — ESD Protection Exceeds 2000 Volts • 300 Mil DIP or Standard 600 Mil DIP • JEDEC Standard Pin Configuration GENERAL DESCRIPTION The WS27C256L is a performance oriented 256K UV Erasable Electrically Programmable Read Only Memory organized as 32K words x 8 bits/word. It is manufactured using an advanced CMOS technology which enables it to operate at speeds up to 120 nsecs. The memory was designed utilizing WSI's patented self-aligned split gate EPROM cell, resulting in a low power device with a very cost effective die size. The WS27C256L 256K EPROM provides 32K of 8 bit wide code store capacity for DSP, microprocessor, and microcontroller-based systems. Its 120 nsec access time over the full Military temperature range provides the potential of no-wait state operation. And where this parameter is important, the WS27C256L provides the user with a very fast 35 nsec TOE output enable time. The WS27C256L is offered in a 28 pin 300 mil skinny CERDIP or the standard 600 mil CERDIP, and also in a 32 pad Ceramic Leadless Chip Carrier (CLLCC) for surface mount applications. All packages incorporate the standard JEDEC EPROM pinout. A8 A9 A11 NC OE A10 CE/PGM O7 O6 A6 A5 A4 A3 A2 A1 A0 NC O0 O1 O2 NC O3 O4 O5 1 43 2 32 31 30 29 28 27 26 25 24 23 22 21 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 VCC A14 A13 A8 A9 A11 OE A10 CE/PGM O7 O6 O5 O4 O3 VPP A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 Return to Main Menu |
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