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ꢀꢈ ꢉꢈꢁ ꢊꢋꢌꢍꢁꢁ ꢈꢎꢇꢎ ꢏ ꢁꢈꢇ ꢐꢈꢋ ꢈꢏ ꢉ ꢈꢐ ꢀ
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SLLS108B − D239, JANUARY 1977 − REVISED FEBRUARY 1993
SN75125 . . . D OR N PACKAGE
(TOP VIEW)
• Meets IBM 360/370 I/O Specification
• Input Resistance . . . 7 kΩ to 20 kΩ
• Output Compatible With TTL
1Y
V
1A
2A
1
2
3
4
5
6
7
8
16
15
14
• Schottky-Clamped Transistors
• Operates From Single 5-V Supply
• High Speed . . . Low Propagation Delay
CC
3Y
3A
13 4Y
12 5Y
4A
5A
• Ratio Specification for Propagation Delay
11
10
9
6Y
7Y
2Y
6A
Time, Low-to-High/High-to-Low
7A
• Seven Channels in One 16-Pin Package
GND
• Standard V
and Ground Positioning on
CC
SN75127
SN75127 . . . D OR N PACKAGE
(TOP VIEW)
description
The SN75125 and SN75127 are monolithic
seven-channel line receivers designed to satisfy
the requirements of the IBM System 360/370
input/output interface specifications. Special
low-power design and Schottky-clamped
transistors allow for low supply-current
requirements while maintaining fast switching
speeds and high-current TTL outputs.
V
1A
2A
1
2
3
4
5
6
7
8
16
15
14
CC
1Y
2Y
3A
13 3Y
12 4Y
4A
5A
11
10
9
5Y
6Y
7Y
6A
7A
GND
The SN75125 and SN75127 are characterized for
operation from 0°C to 70°C.
THE SN75125 IS NOT
RECOMMENDED FOR NEW DESIGN
†
logic symbols
SN75125
SN75127
1
2
3
4
5
6
7
16
9
1
2
3
4
5
6
7
15
14
13
12
11
10
9
1Y
2Y
3Y
4Y
5Y
6Y
7Y
1Y
2Y
3Y
4Y
5Y
6Y
7Y
1A
2A
3A
4A
5A
6A
7A
1A
2A
3A
4A
5A
6A
7A
14
13
12
11
10
†
These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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Copyright 1993, Texas Instruments Incorporated
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ꢞ ꢢ ꢟ ꢞꢗ ꢘꢬ ꢚꢙ ꢝ ꢥꢥ ꢣꢝ ꢛ ꢝ ꢜ ꢢ ꢞ ꢢ ꢛ ꢟ ꢧ
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2−1
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