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SN74F657 OCTAL TRANSCEIVER WITH PARITY GENERATOR/CHECKER
AND 3-STATE OUTPUTS
SDFS027A – D3217, JANUARY 1989 – REVISED OCTOBER 1993
• Combines ′F245 and ′F280B Functions in
One Package
• High-Impedance N-P-N Inputs for Reduced
Loading (70 µA in Low and High States)
• High Output Drive and Light Bus Loading • 3-State B Outputs Sink 64 mA and Source
15 mA
• Input Diodes for Termination Effects • Package Options Include Plastic
Small-Outline Packages and Standard Plastic 300-mil DIPs
description
The SN74F657 contains eight noninverting buffers with 3-state outputs and an 8-bit parity generator/checker. It is intended for bus-oriented applications. The buffers have a specified current sinking capability of 24 mA at the A port and 64 mA at the B port.
SN74F657 Datasheet
