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1FEATURES

· Functional Replacements for the Agere

BRF1A, BRF2A, BRS2A, and BRS2B

· Pin Equivalent to General Trade 26LS32

· High Input Impedance Approximately 8 kΩ

· 4-ns Maximum Propagation Delay

· TB5R1 Provides 50-mV Hysteresis

· TB5R2 With -125-mV Threshold Offset for

Preferred State Output

· -1.1-V to 7.1-V Common Mode Range

· Single 5-V 10% Supply

· Slew Rate Limited (1 ns min 80% to 20%)

· TB5R2 Output Defaults to Logic 1 When Inputs

Left Open or Shorted to VCC or GND

· ESD Protection HBM > 3 kV, CDM > 2 kV

· Operating Temperature Range: -40C to 85C

· Available in Gull-Wing SOIC (JEDEC MS-013,

DW) and SOIC (D) Package

APPLICATIONS

· Digital Data or Clock Transmission Over

Balanced Lines

DESCRIPTION

These quad differential receivers accept digital data

over balanced transmission lines. They translate

differential input logic levels to TTL output logic levels.

The TB5R1 is a pin- and function-compatible replacement for the Agere systems BRF1A and

BRF2A; it includes 3-kV HBM and 2-kV CDM ESD

protection.

The TB5R2 is a pin- and function-compatible

replacement for the Agere systems BRS2A and

BRS2B and incorporates a 125-mV receiver input

offset, preferred state output, 3-kV HBM and 2-kV CDM ESD protection. The TB5R2 preferred state

feature places the high state when the inputs are

open, shorted to ground, or shorted to the power

supply.

The power-down loading characteristics of the

receiver input circuit are approximately 8 kΩ relative

to the power supplies; hence they do not load the

transmission line when the circuit is powered down.

The packaging for these differential line receivers

include a 16-pin gull wing SOIC (DW) and SOIC (D).

The enable inputs of this device include internal

pullup resistors of approximately 40 kΩ that are

connected to VCC to ensure a logical high level input

if the inputs are open circuited.