Overview
The SN74HC245PWR is an octal bus transceiver produced by Texas Instruments. This device is designed for asynchronous two-way communication between data buses, allowing data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device, effectively isolating the buses. This component is part of the 74HC series and is known for its wide operating voltage range and high-current 3-state outputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Package | 20-TSSOP (0.173", 4.40mm Width) | |
| Operating Temperature Range | -40°C to 85°C | °C |
| Supply Voltage | 2 V to 6 V | V |
| Logic Type | Transceiver, Non-Inverting | |
| Number of Elements | 1 | |
| Number of Bits per Element | 8 | |
| Output Type | Push-Pull | |
| Output Current (High, Low) | 7.8 mA, 7.8 mA | mA |
| Input Current | 1 µA Max | µA |
| Propagation Delay (tpd) | 12 ns (Typical at 5 V) | ns |
Key Features
- Wide Operating Voltage Range of 2 V to 6 V
- High-Current 3-State Outputs Drive Bus Lines Directly or Up to 15 LSTTL Loads
- Low Power Consumption, 80-µA Max ICC
- Typical Propagation Delay of 12 ns at 5 V
- ±6-mA Output Drive at 5 V
- Low Input Current of 1 µA Max
- Output Enable (OE) Input to Disable the Device and Isolate Buses
Applications
The SN74HC245PWR is suitable for various applications requiring asynchronous two-way communication between data buses. These include:
- Data transmission systems in digital circuits
- Bus communication in microprocessor and microcontroller systems
- Peripheral interface circuits
- Industrial control systems
- Embedded systems requiring bus isolation and control
Q & A
- What is the operating voltage range of the SN74HC245PWR?
The operating voltage range is from 2 V to 6 V.
- What is the package type of the SN74HC245PWR?
The package type is 20-TSSOP (0.173", 4.40mm Width).
- What is the propagation delay of the SN74HC245PWR?
The typical propagation delay is 12 ns at 5 V.
- How many bits per element does the SN74HC245PWR support?
The device supports 8 bits per element.
- What is the output current capability of the SN74HC245PWR?
The output current is ±7.8 mA.
- Can the SN74HC245PWR drive LSTTL loads?
- How does the output-enable (OE) input function?
The OE input can be used to disable the device, effectively isolating the buses.
- What is the operating temperature range of the SN74HC245PWR?
The operating temperature range is from -40°C to 85°C.
- Is the SN74HC245PWR RoHS compliant?
- What is the typical power consumption of the SN74HC245PWR?
The typical power consumption is 80-µA Max ICC.
