SN75128 Datasheet: 8-Channel Line Receiver





SN75128 8-Channel Line Receiver Datasheet

Part Number SN75128
Description 8-Channel Line Receiver
Manufacture etcTI
Total Page 11 Pages
PDF Download Download SN75128 Datasheet PDF

Features: ą • Meets or Exceeds the Requirements of IBM System 360/370 Input/Output Specification • Input Resistance . . . 7 kΩ to 20 kΩ • Output Compatib le With TTL • Schottky-Clamped Transi stors • Operates From a Single 5-V Su pply • High Speed . . . Low Propagati on Delay • Ratio Specification . . . tPLH /tPHL • Common Strobe for Each G roup of Four Receivers • SN75128 . . . Active-High Strobes SN75129 . . . Act ive-Low Strobes SN75128, SN75129 EIGHT ĆCHANNEL LINE RECEIVERS ą SLLS076B JANUARY 1977 − REVISED MAY 1995 N P ACKAGE (TOP VIEW) 1S/1S† 1A 2A 3A 4A 5A 6A 7A 8A GND 1 2 3 4 5 6 7 8 9 10 20 VCC 19 1Y 18 2Y 17 3Y 16 4Y 15 5Y 1 4 6Y 13 7Y 12 8Y 11 2S/2S† † S and S for SN75128 and SN75129, respectivel y description The SN75128 and SN75129 are eight-channel line receivers design ed to satisfy the requirements of the i nput-output interface specification for IBM 360/370. Both devices feature comm on strobes for each group of four devices. The SN75128 has active-high strobes; the SN75129 has acti.

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Meets or Exceeds the Requirements of
IBMSystem 360/370 Input/Output
Specification
Input Resistance . . . 7 kto 20 k
Output Compatible With TTL
Schottky-Clamped Transistors
Operates From a Single 5-V Supply
High Speed . . . Low Propagation Delay
Ratio Specification . . . tPLH /tPHL
Common Strobe for Each Group of Four
Receivers
SN75128 . . . Active-High Strobes
SN75129 . . . Active-Low Strobes
SN75128, SN75129
EIGHTĆCHANNEL LINE RECEIVERS
ą
SLLS076B − JANUARY 1977 − REVISED MAY 1995
N PACKAGE
(TOP VIEW)
1S/1S
1A
2A
3A
4A
5A
6A
7A
8A
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 1Y
18 2Y
17 3Y
16 4Y
15 5Y
14 6Y
13 7Y
12 8Y
11 2S/2S
S and S for SN75128 and SN75129, respectively
description
The SN75128 and SN75129 are eight-channel line receivers designed to satisfy the requirements of the
input-output interface specification for IBM 360/370. Both devices feature common strobes for each group of
four devices. The SN75128 has active-high strobes; the SN75129 has active-low strobes. Special low-power
design and Schottky-diode-clamped transistors allow low supply-current requirements while maintaining fast
switching speeds and high-current TTL outputs.
For new IBM 360/370 interface designs, see the SN751730.
The SN75128 and SN75129 are characterized for operation from 0°C to 70°C.
logic symbols
SN75128
1
1S
11
2S
EN1
EN2
1
1S
11
2S
SN75129
EN1
EN2
2
1A
3
2A
4
3A
5
4A
6
5A
7
6A
8
7A
9
8A
19
1 1Y
18
2Y
17
3Y
16
4Y
15
2 5Y
14
6Y
13
7Y
12
8Y
2
1A
3
2A
4
3A
5
4A
6
5A
7
6A
8
7A
9
8A
1 19 1Y
18 2Y
17 3Y
16 4Y
2 15 5Y
14 6Y
13 7Y
12 8Y
These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
IBM is a trademark of International Business Machines Corp.
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 1995, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
2−1

                    
           






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