TheTTL - Al Kossow's Bitsavers

TBP38S030, TBP38L030, TBP38SA030
TBP38S03X, TBP38L03X, TBP38SA03X
256·BIT (32 WORDS BY 8 BITS) PROGRAMMABLE READ·ONLY MEMORIES
D2852.AUGUST 1984-REVISED JUNE 1986
• Advanced Schottky IMPACT'" PROM Family
• High-Speed Access Times
• Low-Power, Open-Collector, and 3-State
Options Available
• Titanium-Tungsten (Ti-W) Fuse Links for
Reliable Low-Voltage Programming
• P-N-P Inputs for Reduced Loading on
System Buffers/Drivers
• Applications Include:
Microprogramming/Firmware Loaders
Code Converters/Character Generators
Translators/Emulators
Address Mapping/Look-Up Tables
• Package Options Include 16-Pin DIP, and
20-Pin Chip-Carrier
description
These Series-3 IMPACr" TTL programmable
read-only memories (PROMs) feature high-speed
access times and dependable titanium-tungsten
fuse link program elements. They are organized
as 32 words by 8 bits each, providing a total of
256 bits. T.he TBP38S03' has three-state
outputs. The TBP38SA03' is the open-collector
version and allows the device to be connected
directly to data buses utilizing passive pull-up
resistors. The low-power TBP38L03' is available
for applications that require power conservation
while maintaining bipolar speeds.
TBP3BL030. TBP38S030. TBP38SA030 ... J OR N PACKAGE
(TOP VIEW)
00 VCC
01 G
02 A4
03 A3
04 A2
05 A1
06 AO
GND 07
TBP38L03X. TBP38S03X. TBP38SA03X ... FK OR FN PACKAGE
(TOP VIEW)
u
,....ouu
00 z >It!l
3 2 1 2019
02 4 18 A4
03 5 17 A3
NC 6 16 NC
04 7 15 A2
05 8 14 Al
9 1011 1213
tDOUf'oO
OzzO«
t!l
NC-No internal connection
These PROMs are offered with a choice of address access times (dash numbers). These dash numbers
_ are found in the switching characteristics table, and are included in the part numbers.
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 circuitry
has been designed into these devices to improve testability and ensure high programmability.
CJ)
2
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a:
c..
An MJ or MFK suffix designates full-temperature circuits that are characterized for operation over the full
military temperature range of - 55°C to 125°C. An N or FN suffix designates commercial temperature
circuits that are characterized for operation from ooC to 70°C.
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 © 1984. Texas Instruments Incorporated
4-67