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Product Detailed Parameters
- Description：SN54HC191 SYNCHRONOUS 4-BIT UP/D
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Logic Type：-
- Direction：-
- Number of Elements：-
- Number of Bits per Element：-
- Reset：-
- Timing：-
- Count Rate：-
- Trigger Type：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Voltage - Supply：-
- Grade：-
- Qualification：-
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Overview
The Texas Instruments 5962-86891012A is a military-grade SN54HC191 synchronous 4-bit up/down binary counter. It operates within a supply voltage range of 2V to 6V and supports data rates up to 28 MHz at nominal voltage. The device functions across an extended temperature range of -55°C to 125°C, with a typical quiescent current of 0.08 mA. It features standard TTL-compatible inputs and outputs, designed for high-reliability digital counting applications in harsh environments.
Feature Summary
- Synchronous 4-bit up/down binary counting capability
- Military-grade reliability for extreme temperature operation
- High-speed data processing up to 28 MHz
- Wide supply voltage compatibility from 2V to 6V
Applications
- Military aerospace digital systems
- Industrial control counters
- High-reliability timing circuits
- Spacecraft data processing units
Procurement Notes
Verify the manufacturer source carefully, as the 5962 prefix indicates a military specification part often distributed by authorized defense suppliers. Confirm the specific grade suffix matches your environmental requirements. Ensure the component is sourced from authorized channels to guarantee authenticity and traceability for critical applications.
Selection Notes
Select this component when military-grade reliability and wide temperature tolerance are required for synchronous counting tasks. It is suitable for designs needing high-speed operation up to 28 MHz in harsh conditions. Consider pin compatibility with existing SN54HC series footprints if upgrading commercial parts to military specifications.
Part Context
This part belongs to the SN54HC191 family of synchronous 4-bit up/down counters. The 5962 prefix denotes a military-grade version manufactured under government contract specifications. It provides enhanced durability compared to commercial variants, ensuring stable performance in demanding operational environments where standard components might fail.
Replacement Considerations
Direct replacements include other SN54HC191 variants with matching military grades. Verify pinout compatibility and electrical characteristics against the original datasheet. Ensure any substitute meets the same temperature and voltage specifications for seamless integration.
