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TBP34R162 t TBP34R16X
16,384-BIT (4096 WORDS BY 4 BITS) REGISTERED
PROGRAMMABLE READ-ONLY MEMORY
02863, NOVEMBER 1984-REVISED DECEMBER 1985
• Fastest Schottky PROM Family
• High-Speed Access Times
• Allows Storage of Output Data
• Titanium-Tungsten (Ti-W) Fuse Links for
Reliable Low-Voltage Programming
description
The TBP34R16' is a series-3 IMPACTTM TTL
programmable read-only memory (PROM)
featuring high-speed access times and
dependable titanium-tungsten fuse link program
elements. It is organized as 4096 words by 4
bits, providing 16,384 bits.
The output register receives data from the PROM
array on the rising edge of RCLK. Data is
programmed at any bit location with the
standard series 3 programming algorithm. The
program elements store a low logic level before
any programming, and are permanently set to a
high logic level after programming. After
execution of the programming procedure, the
output for that bit location cannot be reversed.
The series 3 programming procedure should be
referred to for further details. Additional circuits
have been designed into these devices to
improve testability and ensure high
programmability .
These PROMs are offered with a choice of setup
times (dash numbers). these dash numbers are
found in the recommended operating conditions
table, and are included in the part numbers.
TBP34R162 ... J OR N PACKAGE
A8
A7
A6
A5
A4
A3
A2
A1
AD
GND
(TOP VIEW)
VCC
A9
A10
A11
G
RCLK
QO
Q1
Q2
Q3
TBP34R16X ... FN OR FK PACKAGE
(TOP VIEW)
3 2 1 2019
A5 4 18 A10
A4 5 17 A11
A3 6 16 G
A2 7 15 RCLK
A1 8 14 QO
9 10 11 1213
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4: zOOO
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An MFK or MJ suffix designates full-temperature circuits that are characterized for operation over the full
military temperature range of - 55°C to 125°C. An FN or N suffix designates commercial-temperature
circuits that are characterized for operation from OOC to 70°C.
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IMPACT is a trademark of Texas Instruments.
This document contains information on products in
more than one phase of development. The status of
each device is indicated on the pagels) specifying its
electrical characteristics.
TEXAS •
INSTRUMENTS
POST OFFICE BOX 225012 • DALLAS, TEXAS 75265
Copyright © 1985, Texas Instruments Incorporated
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