SN75124

TRIPLE LINE RECEIVER

SLLS058B – SEPTEMBER 1973 – REVISED MAY 1995

1

POST OFFICE BOX 655303

IBM

™ System 360 Input/Output Interface

Specification

Time = 20 ns

Flexibility

SN75123

Signetics N8T24

description

The SN75124 triple line receiver is specifically designed to meet the input/output interface specifications for IBM

System 360. It is also compatible with standard TTL logic and supply voltage levels.

The SN75124 has receiver inputs with built-in hysteresis to provide increased noise margin for single-ended

systems. An open line affects the receiver input as does a low-level input voltage, and the receiver input can

withstand a level of – 0.15 V with power on or off. The other inputs are in TTL configuration. The S input must

be high to enable the receiver input. Two of the line receivers have A and B inputs that, if both are high, hold

the output low. The third receiver has only an A input that, if high, holds the output low.

See the SN751730 for new IBM 360/370 interface designs.

The SN75124 is characterized for operation from 0

°C to 70°C.

FUNCTION TABLE

INPUTS

OUTPUT

A

B†

R

S

OUTPUT

Y

H

H

X

X

L

X

XL

H

L

L

XHX

H

L

XX

L

H

X

LH

X

H

X

L

X

L

H

† B input and last two lines of the function table are

applicable to receivers 1 and 2 only.

Copyright

© 1995, 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.

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.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1A

1B

2R

2S

2A

2B

2Y

GND

1S

1R

1Y

3A

3S

3R

3Y

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