Texas Instruments TMS27C128 131 072-BIT UV ERASABLE EEPROM - TMS27PC128 131 072-BIT PROM - Data Manual (2), User Guide, Product Specifications
Summary
Essential 131,072-bit non-volatile memories available in two versions: the UV erasable TMS27C128 and the programmable TMS27PC128. Designed for high-speed data storage in microprocessor systems, these low-power CMOS devices ensure reliable operation from a single 5V supply during read mode. This manual details the architecture, pin compatibility with older ROM standards, programming procedures (SNAP! Pulse algorithm), and operational guidelines for engineers building embedded electronic solutions requiring permanent memory storage.
Page 1 Text Content
查询TMS27C131供应商 TMS27C128 131 072-BIT UV ERASABLE PROGRAMMABLE READ-ONLY MEMORY
TMS27PC128 131 072-BIT PROGRAMMABLE READ-ONLY MEMORY
SMLS128E–OCTOBER 1984–REVISED JANUARY 1993
This Data Sheet is Applicable to All J AND N PACKAGES TMS27C128s and TMS27PC128s Symbolized (TOP VIEW)
with Code “B” as Described on Page 12.
VPP VCC
Organization 16K × 8
A12 PGM
Single 5-V Power Supply A7 A13
Pin Compatible With Existing 128K MOS
ROMs, PROMs, and EPROMs
A4 A11 All Inputs/Outputs Fully TTL Compatible A3 A2 A10
Max Access/Min Cycle Times
VCC ± 10%
A0 DQ7 ’27C128-12 ns DQ0 DQ6 ’27C/PC128-15 ns DQ1 DQ5 ’27C/PC128-20 ns DQ2 DQ4 ’27C/PC128-25 ns GND DQ3
Power Saving CMOS Technology Very High-Speed SNAP! Pulse Programming
FM PACKAGE
3-State Output Buffers (TOP VIEW)
400-m V Minimum DC Noise Immunity With Standard TTL Loads Latchup Immunity of 250 m A on All Input
and Output Lines
Low Power Dissipation (VCC = 5.25 V)
A3 NC
– Active 158 m W Worst Case
– Standby 1.4 m W Worst Case
(CMOS Input Levels)
PEP4 Version Available With 168-Hour
NC DQ7
Burn-In and Choices of Operating
DQ0 DQ6
Temperature Ranges 128K EPROM Available With MIL-STD-883C Class B High-Reliability Processing (SMJ27C128)
description
PIN NOMENCLATURE
The TMS27C128 series are 131 072-bit,
A0–A13 Address Inputs
ultraviolet-light erasable, electrically
Chip Enable/Powerdown
programmable read-only memories.
Output Enable
GND Ground
The TMS27PC128 series are 131 072-bit, one
NC No Connection
time electrically programmable read-only
NU Make No External Connection
memories. PGM Program
DQ0–DQ7 Inputs (programming)/Outputs VCC 5-V Power Supply VPP 12-13 V Programming Power Supply
PRODUCTION DATA information is current as of publication date. Copyright 1993, Texas Instruments Incorporated
Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
POST OFFICE BOX 1443 • HOUSTON, TEXAS
Page Summary Contents For Texas Instruments TMS27C128 131 072-BIT UV ERASABLE EEPROM - TMS27PC128 131 072-BIT PROM - Data Manual (2), User Guide, Product Specifications
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 14 |
| File Size | 139.90 KB |
| Published | July 16, 2026 |
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Frequently Asked Questions
What is the primary application voltage for read mode?
The devices operate from a single 5-V supply when in read mode.
How are these memory chips programmed?
They utilize the SNAP! Pulse programming algorithm and require a V_PP of 13.0 V and a V_CC of 6.5 V for nominal programming time.
Are these devices pin-compatible with other memories?
Yes, the TMS27C128 and TMS27PC128 are pin compatible with 28-pin 128K MOS ROMs, PROMs, and EPROMs.
What is the low power standby consumption?
The Standby current draw is noted as a worst case of 1.4 mW.