TMS27C040 524288 BY 8-BIT UV ERASABLE
TMS27PC040 524288 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORY
SMLS040F 鈥?NOVEMBER 1990 鈥?REVISED SEPTEMBER 1997
D
D
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Organization . . . 524 288 by 8 Bits
Single 5-V Power Supply
Industry Standard 32-Pin Dual In-Line
Package and 32-Lead Plastic Leaded Chip
Carrier
All Inputs / Outputs Fully TTL Compatible
Static Operation (No Clocks, No Refresh)
Max Access / Min Cycle Time
V
CC
鹵
10%
鈥?7C/ PC040-10
100 ns
鈥?7C/ PC040-12
120 ns
鈥?7C/ PC040-15
150 ns
8-Bit Output For Use in
Microprocessor-Based Systems
Power-Saving CMOS Technology
3-State Output Buffers
400-mV Assured DC Noise Immunity With
Standard TTL Loads
Latchup Immunity of 250 mA on All Input
and Output Pins
No Pullup Resistors Required
Low Power Dissipation (V
CC
= 5.5 V)
鈥?Active . . . 275 mW Worst Case
鈥?Standby . . . 0.55 mW Worst Cas E
(CMOS-Input Levels)
Temperature Range Options
TMS27C040
J PACKAGE
V
PP
A16
A15
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
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
CC
A18
A17
A14
A13
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
TMS27PC040
FM PACKAGE
( TOP VIEW )
description
The TMS27C040 devices are 524 288 by 8-bit
(4 194 304-bit), ultraviolet (UV) light erasable,
electrically programmable read-only memories
(EPROMs).
The TMS27PC040 devices are 524 288 by 8-bit
(4 194 304-bit), one-time programmable (OTP)
electrically programmable read-only memories
(PROMs).
These devices are fabricated using CMOS
technology for high speed and simple interface
with MOS and bipolar circuits. All inputs ( including
program data inputs) can be driven by the Series
74 TTL circuits. Each output can drive one Series
74 TTL circuit without external resistors.
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
A12
A15
A16
VPP
VCC
A18
A17
4
5
6
7
8
9
10
11
12
13
14 15 16 17 18 19 20
3 2 1 32 31 30
29
28
27
26
25
24
23
22
21
A14
A13
A8
A9
A11
G
A10
E
DQ7
DQ1
DQ2
A0 鈥?A18
DQ0 鈥?DQ7
E
G
GND
VCC
VPP
PIN NOMENCLATURE
Address Inputs
Inputs (programming) / Outputs
Chip Enable
Output Enable
Ground
5-V Supply
13-V Power Supply鈥?/div>
鈥?Only in program mode.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright
漏
1997, 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.
POST OFFICE BOX 1443
鈥?/div>
HOUSTON, TEXAS 77251鈥?443
GND
DQ3
DQ4
DQ5
DQ6
1
1
2
3
4
5
6
7
8
9
10
11
12
