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TMS27PC256-10 Datasheet(PDF) 1 Page - Texas Instruments

Part # TMS27PC256-10
Description  8-BIT PROGRAMMABLE READ-ONLY MEMORIES
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMS27PC256-10 Datasheet(HTML) 1 Page - Texas Instruments

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TMS27C256 32768 BY 8BIT UV ERASABLE
TMS27PC256 32768 BY 8BIT
PROGRAMMABLE READONLY MEMORIES
SMLS256H− SEPTEMBER 1984 − REVISED NOVEMBER 1997
1
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251−1443
D Organization ...32768 by 8 Bits
D Single 5-V Power Supply
D Pin Compatible With Existing 256K MOS
ROMs, PROMs, and EPROMs
D All Inputs /Outputs Fully TTL Compatible
D Max Access/Min Cycle Time
VCC ± 10%
’27C / PC256-10
100 ns
’27C / PC256-12
120 ns
’27C / PC256-15
150 ns
’27C / PC256-17
170 ns
’27C / PC256-20
200 ns
’27C / PC256-25
250 ns
D Power Saving CMOS Technology
D Very High-Speed SNAP! Pulse
Programming
D 3-State Output Buffers
D 400-mV Minimum DC Noise Immunity With
Standard TTL Loads
D Latchup Immunity of 250 mA on All Input
and Output Lines
D Low Power Dissipation (VCC = 5.5 V)
− Active . . . 165 mW Worst Case
− Standby . . . 1.4 mW Worst Case
(CMOS Input Levels)
D Temperature Range Options
D 256K EPROM Available With MIL-STD-883C
Class B High Reliability Processing
(SMJ27C256)
description
The TMS27C256 series are 32 768 by 8-bit
(262 144-bit), ultraviolet (UV) light erasable,
electrically programmable read-only memories
(EPROMs).
The TMS27PC256 series are 32 768 by 8-bit
(262 144-bit), one-time programmmable (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.
32 1 32 31
14
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
430
15 16 17 18 19 20
PIN NOMENCLATURE
A0 − A14
Address Inputs
DQ0 − DQ7
Inputs (programming) / Outputs
E
Chip Enable / Powerdown
G
Output Enable
GND
Ground
NC
No Internal Connection
NU
Make No External Connection
VCC
5-V Power Supply
VPP
13-V Power Supply †
J PACKAGE
( TOP VIEW )
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
VPP
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
VCC
A14
A13
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
A8
A9
A11
NC
G
A10
E
DQ7
DQ6
A6
A5
A4
A3
A2
A1
A0
NC
DQ0
FM PACKAGE
( TOP VIEW )
† Only in program mode
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.
Copyright
 1997, Texas Instruments Incorporated


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