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| Product attributes | Property Value |
| Manufacturer | Motorola |
| Product Series | 74HC |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Transceiver, Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | - |
| Package / Case | - |
| Supplier Device Package | - |
The MC74HC640AFEL from Motorola is a single-channel inverting transceiver in the 74HC family. It operates from 2V to 6V, delivering 7.8mA output current with 3-State outputs for bidirectional bus applications. Its extended temperature range (-55°C to 125°C) makes it ideal for automotive and industrial use. This transceiver is perfect for bus interfacing, signal inversion, and level shifting in demanding environments.
- Wide Supply Voltage (2V-6V): Ensures compatibility with multiple logic standards.
- High-Temperature Operation (-55°C to 125°C): Reliable in extreme conditions.
- 3-State Outputs: Facilitates bus sharing and prevents data corruption.
- Inverting Function: Combines inversion and buffering in one device.
Microcontroller Bus Expansion
Use the MC74HC640AFEL to expand a microcontroller's data bus to multiple peripherals. The 3-State outputs prevent bus contention when multiple devices are active.
Inverting Buffer for Logic Inversion
When a design requires inverted signals, this transceiver provides both inversion and buffering, improving signal drive strength.
Automotive Sensor Interfaces
With its wide temperature range and 2V-6V operation, it is well-suited for automotive sensor buses that require robust signal handling.
Industrial Process Control
In industrial automation, this transceiver manages bidirectional communication between control modules and field devices, ensuring reliable data transfer.
Mixed-Voltage Level Shifting
It can shift logic levels between 3.3V and 5V systems while inverting, simplifying interface design in multi-voltage boards.
Data Logging Systems
Use it to route data from multiple sensors to a central logger, with 3-State control to select active channels.
- Q: What logic family does the MC74HC640AFEL belong to?
- A: It is part of the 74HC family, known for high-speed CMOS performance with wide voltage tolerance.
- Q: What is the function of this IC?
- A: It is an inverting transceiver with 1 channel, enabling bidirectional data transfer with inverted outputs.
- Q: What is the output type?
- A: It features 3-State outputs, allowing connection to shared buses with high-impedance states.
- Q: What is the operating voltage range?
- A: It operates from 2V to 6V, supporting both 3.3V and 5V logic systems.
- Q: What is the output current?
- A: It can source and sink 7.8mA per output.
- Q: What is the temperature range?
- A: It operates from -55°C to 125°C, suitable for extreme environments.
MC74HC640AFEL.pdf
- Q: What logic family does the MC74HC640AFEL belong to?
- A: It is part of the 74HC family, known for high-speed CMOS performance with wide voltage tolerance.
- Q: What is the function of this IC?
- A: It is an inverting transceiver with 1 channel, enabling bidirectional data transfer with inverted outputs.
- Q: What is the output type?
- A: It features 3-State outputs, allowing connection to shared buses with high-impedance states.
- Q: What is the operating voltage range?
- A: It operates from 2V to 6V, supporting both 3.3V and 5V logic systems.
- Q: What is the output current?
- A: It can source and sink 7.8mA per output.
- Q: What is the temperature range?
- A: It operates from -55°C to 125°C, suitable for extreme environments.