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
TMS27C128s and TMS27PC128s Symbolized
with Code “B” as Described on Page 12.
J AND N PACKAGES
(TOP VIEW)
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Organization . . . 16K
×
8
Single 5-V Power Supply
Pin Compatible With Existing 128K MOS
ROMs, PROMs, and EPROMs
All Inputs/Outputs Fully TTL Compatible
Max Access/Min Cycle Times
V
CC
±
10%
’27C128-12
’27C/PC128-15
’27C/PC128-20
’27C/PC128-25
120
150
200
250
ns
ns
ns
ns
V
PP
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
27
26
25
24
23
22
21
20
19
18
17
16
15
V
CC
PGM
A13
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
400-mV Minimum DC Noise Immunity With
Standard TTL Loads
Latchup Immunity of 250 mA on All Input
and Output Lines
Low Power Dissipation ( V
CC
= 5.25 V )
– Active . . . 158 mW Worst Case
– Standby . . . 1.4 mW Worst Case
(CMOS Input Levels)
PEP4 Version Available With 168-Hour
Burn-In and Choices of Operating
Temperature Ranges
128K EPROM Available With MIL-STD-883C
Class B High-Reliability Processing
(SMJ27C128)
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A6
5
A5
6
A4
7
A3
8
A2
9
A1
10
A0
11
NC
12
DQ0
13
A7
A12
VPP
NU
VCC
PGM
A13
4
3 2 1 32 31 30
29
28
27
26
25
24
23
22
21
14 15 16 17 18 19 20
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Power Saving CMOS Technology
Very High-Speed SNAP! Pulse Programming
3-State Output Buffers
FM PACKAGE
(TOP VIEW)
A8
A9
A11
NC
G
A10
E
DQ7
DQ6
description
PIN NOMENCLATURE
The TMS27C128 series are 131 072-bit,
ultraviolet-light
erasable,
electrically
programmable read-only memories.
The TMS27PC128 series are 131 072-bit, one
time electrically programmable read-only
memories.
A0–A13
E
G
GND
NC
NU
PGM
DQ0–DQ7
VCC
VPP
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.
POST OFFICE BOX 1443 HOUSTON, TEXAS
77251–1443
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DQ1
DQ2
VSS
NU
DQ3
DQ4
DQ5
Address Inputs
Chip Enable/Powerdown
Output Enable
Ground
No Connection
Make No External Connection
Program
Inputs (programming)/Outputs
5-V Power Supply
12-13 V Programming Power Supply
Copyright
©
1993, Texas Instruments Incorporated
1
TI [ TEXAS INSTRUMENTS ]
