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MC74VHC245M
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Product Detailed Parameters
- Description：BUS TRANSCEIVER
- Series：*
- Mfr：onsemi
- 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 MC74VHC245M is an octal bus transceiver manufactured by onsemi, utilizing advanced high-speed CMOS technology. It provides bidirectional asynchronous communication between data buses with eight independent channels. The device features a non-inverting logic function and three-state outputs controlled by an active-low output enable pin. Direction control determines data flow between port A and port B. It operates within a DC power supply voltage range of 2.0 V to 5.5 V for the VHC series. The component includes built-in ESD protection exceeding 2000 V via the human body model.
Feature Summary
- Advanced high-speed CMOS process enables rapid propagation delays for efficient data transfer.
- Bidirectional direction control allows flexible data routing between two distinct buses.
- Integrated electrostatic discharge protection safeguards inputs and outputs against voltage spikes.
- Three-state outputs facilitate electrical isolation when the device is disabled.
Applications
- Data bus buffering in computing systems
- Bidirectional communication interfaces in industrial automation
- Memory address and data bus drivers
Procurement Notes
Verify the specific suffix 'M' against the official datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status and lead times directly with onsemi or authorized distributors. Ensure the operating voltage range matches the system requirements before procurement.
Selection Notes
Select this component for applications requiring high-speed bidirectional data transfer with low power consumption. The wide operating voltage range supports interfacing between 3.3 V and 5.0 V systems. Consider the propagation delay characteristics for timing-critical designs and ensure adequate ESD protection measures are in place.
Part Context
This part belongs to the MC74VHC/VHCT245 family of octal bus transceivers. It shares functional compatibility with standard logic families while offering improved speed and lower power dissipation. The device is designed for use in various digital systems requiring reliable data transmission across multiple lines simultaneously.
Replacement Considerations
Check for direct replacements such as MC74VHC245MWG or MC74VHCT245A variants depending on input logic level requirements (CMOS vs TTL). Verify pinout compatibility and electrical parameters before substitution.
