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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 3mA, 15mA, 24mA, 64mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 24-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 24-SOIC (0.295", 7.50mm Width) |
The MC74F657BDW from onsemi is a high-speed octal buffer designed for 5V systems. This non-inverting buffer features 3-state outputs and provides versatile drive capability with multiple current options (3mA, 15mA, 24mA, 64mA). Operating from 4.5V to 5.5V, it ensures robust performance in commercial applications. The 24-SOIC package offers a standard footprint for easy integration. Ideal for bus buffering, industrial controls, and memory systems, this buffer delivers reliable high-speed signal transfer.
- Multiple Drive Current Options: Provides flexibility to match different load requirements.
- High Sink Current (64mA): Drives heavy capacitive loads and long bus lines effectively.
- 3-State Outputs: Allows safe bus sharing and prevents data corruption.
- Wide 4.5V to 5.5V Supply: Tolerates supply variations, enhancing system reliability.
Bus Buffering in 5V Systems
Use the MC74F657BDW to buffer address and data lines in 5V microprocessor systems, providing high drive current (64mA sink) for heavily loaded buses.
Industrial Sensor Interfacing
In industrial control systems, this buffer isolates sensors from the controller, preventing noise and ensuring reliable signal transmission.
Memory Expansion
Buffer control signals to multiple memory banks, ensuring clean signals and preventing loading effects that could cause data corruption.
Peripheral Device Driving
With multiple current options (3mA, 15mA, 24mA, 64mA), it can drive various peripherals like LEDs, relays, and communication modules.
Test Equipment Signal Routing
In automated test systems, this buffer routes test signals to different measurement points, providing 3-state isolation when not in use.
Legacy System Integration
For retrofitting older 5V systems with modern components, this buffer provides the necessary interface compatibility.
- Q: What is the logic family of the MC74F657BDW?
- A: It is part of the F (Fast) logic family, providing high-speed TTL-compatible performance.
- Q: What is the function of this IC?
- A: It is a non-inverting octal buffer with 3-state outputs, providing signal buffering and line driving.
- Q: How many channels does it have?
- A: It has 1 channel with 8 bits, offering an 8-bit buffer interface.
- Q: What is the output type?
- A: The outputs are 3-State, allowing multiple devices to share a bus safely.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, suitable for standard 5V logic systems.
- Q: What package is available?
- A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.
MC74F657BDW.pdf
- Q: What is the logic family of the MC74F657BDW?
- A: It is part of the F (Fast) logic family, providing high-speed TTL-compatible performance.
- Q: What is the function of this IC?
- A: It is a non-inverting octal buffer with 3-state outputs, providing signal buffering and line driving.
- Q: How many channels does it have?
- A: It has 1 channel with 8 bits, offering an 8-bit buffer interface.
- Q: What is the output type?
- A: The outputs are 3-State, allowing multiple devices to share a bus safely.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, suitable for standard 5V logic systems.
- Q: What package is available?
- A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.