Product Overview
TI 14473557 High-Speed TTL Logic IC - SN74H11 Equivalent DIP-14
Condition
Used condition. Visual inspection only; function testing not performed. Body markings are clear and legible with the Texas Instruments logo, part number 14473557, and date code 7537A. Sourced as an OEM pull.
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Product Overview
The Texas Instruments 14473557 is a monolithic bipolar digital integrated circuit in a standard 14-pin dual in-line package (DIP-14). Manufactured as an OEM house-coded logic device for Burroughs computer systems (such as the B800 CPU), it directly functions as a high-speed TTL triple 3-input positive-AND gate equivalent to the industry-standard SN74H11 / SN74H11N. Operating from a standard 5V Vcc supply, it provides three independent 3-input AND gates with high-speed bipolar switching characteristics.
Key Features
- Logic function: Triple 3-input positive-AND gates
- Direct cross-reference: SN74H11 / SN74H11N / 74H11 equivalent
- Logic family: High-Speed TTL (74H series bipolar)
- Supply voltage: 5.0 V nominal (4.75 V to 5.25 V)
- Package: 14-pin plastic dual in-line package (PDIP-14)
- Markings: Texas Instruments logo, 14473557, date code 7537A
- Temperature range: 0°C to 70°C commercial operating range
Applications
- Replacing damaged logic ICs during restoration of vintage Burroughs computing hardware and peripheral controllers.
- Servicing legacy industrial control boards and digital instrumentation utilizing 74H-series high-speed TTL gates.
- Prototyping discrete TTL logic circuits on breadboards requiring dedicated 3-input AND gating.
Frequently Asked Questions
What standard part number does this IC cross to?
Part number 14473557 is an OEM house number that directly crosses to the standard Texas Instruments SN74H11 / SN74H11N triple 3-input positive-AND gate.
What do the surface markings signify?
The top surface is marked with the Texas Instruments logo, OEM part number 14473557, and date code 7537A indicating manufacture in the 37th week of 1975.
Why buy a single vintage pull instead of hunting down a bulk lot?
When repairing vintage logic hardware, you rarely need a tube of twenty chips to fix one bad gate. This individually photographed unit gives you the exact vintage Texas Instruments component you need without surplus lot overhead. Orders ship for an $8 flat rate, qualify for free shipping once your cart reaches $28, and dispatch from our Idaho warehouse the same or next business day.
The Burroughs mainframes that first ran these house-marked gates have long since retired, but the silicon remains ready for the bench. Drop it into the socket, apply five volts, and let the gates do their work.
