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TMS27PC256

Texas Instruments
Part Number TMS27PC256
Manufacturer Texas Instruments
Description Programmable ROM
Published Sep 6, 2019
Detailed Description D Organization . . . 32768 by 8 Bits D Single 5-V Power Supply D Pin Compatible With Existing 256K MOS ROMs, PROMs, and ...
Datasheet PDF File TMS27PC256 PDF File

TMS27PC256
TMS27PC256


Overview
D Organization .
.
.
32768 by 8 Bits D Single 5-V Power Supply D Pin Compatible With Existing 256K MOS ROMs, PROMs, and EPROMs D All Inputs / Outputs Fully TTL Compatible D Max Access / Min Cycle Time VCC ± 10% ’27C/ PC256-10 100 ns ’27C/ PC256-12 120 ns ’27C/ PC256-15 150 ns ’27C/ PC256-17 170 ns ’27C/ PC256-20 200 ns ’27C/ PC256-25 250 ns D Power Saving CMOS Technology D Very High-Speed SNAP! Pulse Programming D 3-State Output Buffers D 400-mV Minimum DC Noise Immunity With Standard TTL Loads D Latchup Immunity of 250 mA on All Input and Output Lines D Low Power Dissipation ( VCC = 5.
5 V ) – Active .
.
.
165 mW Worst Case – Standby .
.
.
1.
4 mW Worst Case (CMOS Input Levels) D Temperature Range Options D 256K EPROM Available With MIL-STD-883C Class B High Reliability Processing (SMJ27C256) description The TMS27C256 series are 32 768 by 8-bit (262 144-bit), ultraviolet (UV) light erasable, electrically programmable read-only memories (EPROMs).
The TMS27PC256 series are 32 768 by 8-bit (262 144-bit), one-time programmmable (OTP) electrically programmable read-only memories (PROMs).
TMS27C256 32768 BY 8-BIT UV ERASABLE TMS27PC256 32768 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES SMLS256H– SEPTEMBER 1984 – REVISED NOVEMBER 1997 J PACKAGE ( TOP VIEW ) VPP A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 VCC 27 A14 26 A13 25 A8 24 A9 23 A11 22 G 21 A10 20 E 19 DQ7 18 DQ6 17 DQ5 16 DQ4 15 DQ3 FM PACKAGE ( TOP VIEW ) A7 A12 VPP NU VCC A14 A13 A6 A5 A4 A3 A2 A1 A0 NC DQ0 4 3 2 1 32 31 30 5 29 6 28 7 27 8 26 9 25 10 24 11 23 12 22 13 21 14 15 16 17 18 19 20 A8 A9 A11 NC G A10 E DQ7 DQ6 DQ1 DQ2 GND NU DQ3 DQ4 DQ5 PIN NOMENCLATURE A0 – A14 DQ0 – DQ7 E G GND NC NU VCC VPP Address Inputs Inputs (programming) / Outputs Chip Enable / Powerdown Output Enable Ground No Internal Connection Make No External Connection 5-V Power Supply 13-V Power Supply † † Only in program mode Please be aware that an important notice concerning availability...


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