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TMS27PC040 PDF预览

TMS27PC040

更新时间： 2024-11-27 22:23:11
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德州仪器 - TI 存储可编程只读存储器
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12页 166K
描述
PROGRAMMABLE READ-ONLY MEMORY

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TMS27PC040 数据手册

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TMS27C040 524288 BY 8-BIT UV ERASABLE  
TMS27PC040 524288 BY 8-BIT  
PROGRAMMABLE READ-ONLY MEMORY  
SMLS040F – NOVEMBER 1990 – REVISED SEPTEMBER 1997  
TMS27C040  
J PACKAGE  
(TOP VIEW)  
Organization . . . 524288 by 8 Bits  
Single 5-V Power Supply  
Industry Standard 32-Pin Dual In-Line  
Package and 32-Lead Plastic Leaded Chip  
Carrier  
V
V
CC  
1
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
PP  
A16  
A15  
A12  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
A18  
A17  
A14  
A13  
A8  
A9  
A11  
G
2
3
All Inputs/Outputs Fully TTL Compatible  
Static Operation (No Clocks, No Refresh)  
Max Access/Min Cycle Time  
4
5
6
V
± 10%  
CC  
7
’27C/PC040-10  
’27C/PC040-12  
’27C/PC040-15  
100 ns  
120 ns  
150 ns  
8
9
A10  
E
10  
11  
12  
13  
14  
15  
16  
8-Bit Output For Use in  
Microprocessor-Based Systems  
A0  
DQ7  
DQ6  
DQ5  
DQ4  
DQ3  
DQ0  
DQ1  
DQ2  
GND  
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  
TMS27PC040  
FM PACKAGE  
(TOP VIEW)  
No Pullup Resistors Required  
Low Power Dissipation (V  
= 5.5 V)  
CC  
– Active . . . 275 mW Worst Case  
– Standby . . . 0.55 mW Worst Cas E  
(CMOS-Input Levels)  
4
3 2 1 32 31 30  
5
6
7
8
9
29  
A7  
A6  
A5  
A4  
A3  
A14  
A13  
A8  
28  
27  
26  
Temperature Range Options  
A9  
description  
25 A11  
The TMS27C040 devices are 524288 by 8-bit  
(4194304-bit), ultraviolet (UV) light erasable,  
electrically programmable read-only memories  
(EPROMs).  
A2  
A1  
A0  
DQ0  
G
A10  
E
10  
11  
12  
13  
24  
23  
22  
21  
DQ7  
14 15 16 17 18 19 20  
The TMS27PC040 devices are 524288 by 8-bit  
(4194304-bit), one-time programmable (OTP)  
electrically programmable read-only memories  
(PROMs).  
PIN NOMENCLATURE  
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.  
A0–A18  
Address Inputs  
DQ0–DQ7  
Inputs (programming)/Outputs  
Chip Enable  
E
G
GND  
Output Enable  
Ground  
5-V Supply  
V
CC  
†
V
PP  
13-V Power Supply  
†
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 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.  
1
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443  
1234567...12

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