Product Overview
Texas Instruments SN75161BN 8-Channel GPIB IEEE-488 Bus Transceiver IC
Condition
Used. Pulled from equipment. Markings legible: F 323 BB, SN75161BN with Texas Instruments logo. Evaluation: Visual inspection only. Function testing not performed.
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Product Overview
The Texas Instruments SN75161BN is a monolithic octal transceiver designed to provide the bidirectional interface between 8-line general-purpose interface bus (GPIB) systems and standard TTL or microcomputer logic. Built specifically to handle IEEE Standard 488 bus management signal lines, it pairs eight driver-receiver sets with dedicated bus terminators and hysteresis circuitry to preserve signal integrity across benchtop and automated test instrumentation.
Key Features
- 8 driver-receiver transceiver pairs configured for IEEE-488 bus control and management lines
- Driver outputs designed to sink load currents up to 48 mA
- Receiver inputs feature noise-immunity hysteresis
- Standard 5V nominal operating voltage
- 20-pin dual in-line plastic package (PDIP-20 / N suffix)
Applications
- Restoring GPIB interface communications on legacy automated test equipment
- Bench repairs of vintage instrumentation, logic analyzers, and bus controllers
- Retrofitting retrocomputing hardware and custom IEEE-488 microcomputer interfaces
Frequently Asked Questions
What bus signals does the SN75161BN manage?
The SN75161BN is designed for IEEE-488 management lines, specifically accommodating the REN, IFC, NDAC, NRFD, DAV, EOI, ATN, and SRQ signal lines.
Is this part pin-compatible with other GPIB transceivers in the 75160 series?
The SN75161BN is specifically configured for control and bus management signals, whereas companion parts like the SN75160BN handle the 8-bit data bus lines. Verify pinouts against circuit schematics before installing.
Why buy a single reclaimed IC instead of a wholesale lot?
Sourcing an individual, visually verified pull solves a specific repair on the bench without forcing the purchase of surplus bulk packs. Orders ship for an $8 flat rate, free once the order passes $28, and orders leave the Idaho warehouse the same or next business day.
Keeping vintage test benches talking requires the right silicon bridge, and this classic GPIB transceiver is ready to bring an older instrument back on the bus.
