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Product Detailed Parameters
- Description：SN54HC640 OCTAL BUS TRANSCEIVERS
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Logic Type：-
- Number of Elements：-
- Number of Bits per Element：-
- Input Type：-
- Output Type：-
- Current - Output High, Low：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The Texas Instruments 5962-8780901RA is an octal bus transceiver with three-state outputs belonging to the SN54HC640 series. It operates within a supply voltage range of 4.5 V to 5.5 V and supports bidirectional data transfer across eight channels. The device features high noise immunity and low power consumption typical of HC logic. It is housed in a 20-pin CDIP package designed for through-hole mounting, ensuring reliable signal integrity in demanding environments.
Feature Summary
- Provides bidirectional data transmission between two buses using eight independent channels
- Features three-state outputs that isolate the device when disabled
- Offers high noise immunity suitable for harsh operating conditions
Applications
- Military communication systems requiring robust data handling
- Aerospace instrumentation interfaces
- Industrial control system data buses
Procurement Notes
Verify military qualification status and datasheet revisions before procurement. Confirm package authenticity and pin configuration compatibility with existing PCB footprints. Ensure supply chain sources provide traceability documentation required for defense or aerospace contracts. Check for specific ordering suffixes that may affect performance specifications.
Selection Notes
Select this component when bidirectional octal data transfer with three-state isolation is required. Consider the HC logic family for balanced speed and power efficiency. Evaluate the CDIP package constraints against available board space and thermal management requirements. Compare propagation delay characteristics against system timing budgets to ensure signal integrity.
Part Context
This part belongs to the SN54xx series of logic integrated circuits manufactured by Texas Instruments. The SN54xx designation indicates military-grade reliability and extended temperature operation capabilities. These components are widely used in applications where standard commercial grade parts do not meet environmental or longevity requirements.
Replacement Considerations
Compatible substitutes include other SN54HC640 variants from Texas Instruments or equivalent octal bus transceivers from manufacturers like ON Semiconductor or NXP. Verify pinout compatibility and electrical parameter alignment before substitution.
