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| 型號： | TMS27PC020-25JL |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | READ-ONLY MEMORIES |
| 中文描述： | 只讀存儲器 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 206K |
| 代理商： | TMS27PC020-25JL |
TMS27C020 262144 BY 8-BIT UV ERASABLE
TMS27PC020 262144 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
1
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
Organization . . . 262144 by 8 Bits
Single 5-V Power Supply
Operationally Compatible With Existing
Megabit EPROMs
Industry Standard 32-Pin Dual-In-line
Package and 32-Lead Plastic Leaded Chip
Carrier
All Inputs/Outputs Fully TTL Compatible
±
10% V
CC
Tolerance
Max Access/Min Cycle Time
V
CC
±
10%
’27C/PC020-10
100 ns
’27C/PC020-12
120 ns
’27C/PC020-15
150 ns
’27C/PC020-20
200 ns
’27C/PC020-25
250 ns
8-Bit Output For Use in
Microprocessor-Based Systems
Very High-Speed SNAP! Pulse
Programming
Power Saving CMOS Technology
3-State Output Buffers
400 mV Minimum 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)
– Active . . . 165 mW Worst Case
– Standby . . . 0.55 mW Worst Case
(CMOS-Input Levels)
Temperature Range Options
description
The TMS27C020 series are 262144 by 8-bit
(2097152-bit), ultraviolet (UV) light erasable,
electrically programmable read-only memories
(EPROMs).
The TMS27PC020 series are one-time program-
mable (OTP) electrically programmable read-only
memories (PROMs).
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.
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2 1 32 31
14
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12
13
29
28
27
26
25
24
23
22
21
4
30
15 16 17 18 19 20
J PACKAGE
(TOP VIEW)
PIN NOMENCLATURE
Address Inputs
DQ0–DQ7
Inputs (programming)/Outputs
E
Chip Enable
G
Output Enable
GND
Ground
PGM
Program
VCC
5-V Power Supply
VPP
A0–A17
13-V Power Supply
Only in program mode
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
PP
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
V
CC
PGM
A17
A14
A13
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
A14
A13
A8
A9
A11
G
A10
E
DQ7
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
D
D
D
D
D
A
A
A
V
P
A
TMS27PC020
FM PACKAGE
(TOP VIEW)
D
C
V
G
Copyright
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.
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