onsemi MC74HC245ADWG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.43 | $1.43 |
| 15+ | $1.39 | $20.85 |
| 25+ | $1.36 | $34.00 |
| 50+ | $1.28 | $64.00 |
| 100+ | $1.13 | $113.00 |
| N+ | $0.23 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74HC |
| Packaging | Factory | Tube |
| Part Status | Active |
| Logic Type | Transceiver, Non-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 | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC |
| ROHS |
The MC74HC245ADWG is a high-speed CMOS octal bus transceiver from onsemi, designed for bidirectional data communication between two buses. Operating from 2V to 6V, it provides 7.8mA output current per channel, ensuring robust signal drive. With 3-State outputs and a direction control pin, it is ideal for bus-oriented systems, memory interfacing, and level-shifting applications. Its wide temperature range and 20-SOIC package make it suitable for industrial and automotive environments.
- Wide 2V to 6V Supply Range: Compatible with both 3.3V and 5V logic systems, simplifying mixed-voltage design.
- Bidirectional 3-State Outputs: Enables safe bus sharing and prevents data contention in multi-device systems.
- High Output Current (7.8mA): Drives capacitive loads and multiple inputs, maintaining signal integrity.
- Extended Temperature Range (-55°C to 125°C): Suitable for harsh industrial and automotive applications.
Bidirectional Bus Interfacing
Use the MC74HC245ADWG to interface between two data buses in a microcontroller system. Its 3-State outputs and direction control (DIR) pin allow seamless data flow in either direction, preventing bus contention.
Signal Buffering for High-Fanout Applications
Buffer address or data lines to drive multiple loads. The 7.8mA output current at 5V ensures signals maintain integrity even when connected to several inputs, reducing capacitive loading effects.
Level Shifting Between 3.3V and 5V Logic
With a wide 2V to 6V supply range, this transceiver can shift logic levels between 3.3V and 5V systems. Connect VCC to the higher voltage and use the DIR pin to control direction, enabling mixed-voltage communication.
Driving LED Displays and Indicators
Use the buffered outputs to drive LED arrays or status indicators. The 3-State capability allows you to disable outputs during power-up or low-power modes, saving energy.
Industrial Control and Automation
In PLCs and industrial controllers, this IC buffers signals between logic controllers and field devices. Its wide temperature range (-55°C to 125°C) ensures reliable operation in harsh environments.
Memory and Peripheral Expansion
Connect memory modules or peripherals to a microcontroller bus. The bidirectional nature and 3-State outputs allow multiple devices to share the same data lines without interference.
- Q: What logic family does the MC74HC245ADWG belong to?
- A: It belongs to the 74HC (High-Speed CMOS) logic family, offering a good balance of speed and power efficiency.
- Q: What is the function of this IC?
- A: It is an octal bus transceiver with non-inverting outputs, allowing bidirectional data flow between two buses.
- Q: How many channels does it have?
- A: It has 1 channel with 8 bits (octal), providing 8 bidirectional lines.
- Q: What type of output does it feature?
- A: It features 3-State outputs, enabling connection to a shared bus without contention.
- Q: What is the operating voltage range?
- A: It operates from 2V to 6V, making it compatible with 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 20-SOIC (0.295", 7.50mm Width) package.
- Q: What logic family does the MC74HC245ADWG belong to?
- A: It belongs to the 74HC (High-Speed CMOS) logic family, offering a good balance of speed and power efficiency.
- Q: What is the function of this IC?
- A: It is an octal bus transceiver with non-inverting outputs, allowing bidirectional data flow between two buses.
- Q: How many channels does it have?
- A: It has 1 channel with 8 bits (octal), providing 8 bidirectional lines.
- Q: What type of output does it feature?
- A: It features 3-State outputs, enabling connection to a shared bus without contention.
- Q: What is the operating voltage range?
- A: It operates from 2V to 6V, making it compatible with 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 20-SOIC (0.295", 7.50mm Width) package.

MC74HC245ADWG.pdf