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Meets or Exceeds the Requirements of

IBME System 360 Input/Output Interface

Specification

Operates From Single 5-V Supply

TTL Compatible

Built-In Input Threshold Hysteresis

High Speed . . . Typical Propagation Delay

Time = 20 ns

Independent Channel Strobes

Input Gating Increases Application

Flexibility

Designed for Use With Dual Line Driver

SN75123

Designed to Be Interchangeable With

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.