TMS27C128 131 072-BIT UV ERASABLE PROGRAMMABLE READ-ONLY MEMORY
TMS27PC128 131 072-BIT PROGRAMMABLE READ-ONLY MEMORY
SMLS128E–OCTOBER 1984–REVISED JANUARY 1993
J AND N PACKAGES
This Data Sheet is Applicable to All
(TOP VIEW)
TMS27C128s and TMS27PC128s Symbolized
with Code “B” as Described on Page 12.
V
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
V
CC
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PP
•
•
•
Organization . . . 16K × 8
PGM
A13
A8
A9
A11
G
2
Single 5-V Power Supply
3
4
Pin Compatible With Existing 128K MOS
ROMs, PROMs, and EPROMs
5
6
•
•
All Inputs/Outputs Fully TTL Compatible
7
A10
E
8
Max Access/Min Cycle Times
9
V
± 10%
CC
DQ7
DQ6
DQ5
DQ4
DQ3
10
11
12
13
14
’27C128-12
120 ns
’27C/PC128-15 150 ns
’27C/PC128-20 200 ns
’27C/PC128-25 250 ns
•
•
•
•
Power Saving CMOS Technology
Very High-Speed SNAP! Pulse Programming
3-State Output Buffers
FM PACKAGE
(TOP VIEW)
400-mV Minimum DC Noise Immunity With
Standard TTL Loads
4
5
3
2
1
32 31 30
29
•
•
Latchup Immunity of 250 mA on All Input
and Output Lines
A6
A5
A4
A3
A2
A8
A9
28
27
26
25
24
23
22
21
6
7
8
9
A11
NC
G
A10
E
Low Power Dissipation (V
= 5.25 V)
CC
– Active . . . 158 mW Worst Case
– Standby . . . 1.4 mW Worst Case
(CMOS Input Levels)
A1 10
A0 11
NC 12
•
•
PEP4 Version Available With 168-Hour
Burn-In and Choices of Operating
Temperature Ranges
DQ7
DQ6
DQ0
13
14 15 16 17 18 19 20
128K EPROM Available With MIL-STD-883C
Class B High-Reliability Processing
(SMJ27C128)
description
PIN NOMENCLATURE
The TMS27C128 series are 131 072-bit,
ultraviolet-light erasable, electrically
programmable read-only memories.
A0–A13
E
G
GND
NC
NU
Address Inputs
Chip Enable/Powerdown
Output Enable
Ground
No Connection
Make No External Connection
Program
The TMS27PC128 series are 131 072-bit, one
time electrically programmable read-only
memories.
PGM
DQ0–DQ7 Inputs (programming)/Outputs
V
CC
V
PP
5-V Power Supply
12-13 V Programming Power Supply
Copyright 1993, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
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77251–1443