Overview
The SN74HCT245DWE4 is an octal bus transceiver with 3-state outputs, manufactured by Texas Instruments. This device is designed for asynchronous two-way communication between data buses, making it ideal for applications requiring bidirectional data transfer. The SN74HCT245DWE4 operates within a voltage range of 4.5 V to 5.5 V, which is forgiving of 5-V power supply rail accuracy. It features high-current 3-state outputs capable of driving up to 15 LSTTL loads directly, and it has low power consumption with a maximum static supply current of 80 µA.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 4.5 V to 5.5 V | V |
| Output Drive | ±6 mA at 5 V | mA |
| Maximum Static Supply Current (ICC) | 80 µA | µA |
| Input Current | 1 µA maximum | µA |
| Propagation Delay (tpd) | 14 ns typical at 5 V | ns |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 20-SOIC (0.295", 7.50mm Width) | |
| Mounting Type | Surface Mount |
Key Features
- High-current 3-state outputs capable of driving up to 15 LSTTL loads directly.
- Low power consumption with a maximum static supply current of 80 µA.
- Typical propagation delay of 14 ns.
- Balanced output drive of ±6 mA at 5 V.
- Inputs are TTL-voltage compatible.
- Active low output enable and direction control.
- Center VCC and GND pin configurations to minimize high-speed switching noise.
Applications
- Factory Automation and Control
- Grid Infrastructure
- Electronic Point of Sale
- Multi-Function Printers
- Motor Drives
- Storage
- Telecom Infrastructure
Q & A
- What is the operating voltage range of the SN74HCT245DWE4?
The operating voltage range is from 4.5 V to 5.5 V.
- What is the maximum static supply current of the SN74HCT245DWE4?
The maximum static supply current is 80 µA.
- How many LSTTL loads can the outputs of the SN74HCT245DWE4 drive?
The outputs can drive up to 15 LSTTL loads directly.
- What is the typical propagation delay of the SN74HCT245DWE4?
The typical propagation delay is 14 ns at 5 V.
- What is the output drive capability of the SN74HCT245DWE4 at 5 V?
The output drive capability is ±6 mA at 5 V.
- What type of inputs does the SN74HCT245DWE4 have?
The inputs are TTL-voltage compatible.
- What is the purpose of the center VCC and GND pin configurations in the SN74HCT245DWE4?
The center VCC and GND pin configurations minimize high-speed switching noise.
- What are some common applications of the SN74HCT245DWE4?
Common applications include factory automation, grid infrastructure, electronic point of sale, multi-function printers, motor drives, storage, and telecom infrastructure.
- What is the package type of the SN74HCT245DWE4?
The package type is 20-SOIC (0.295", 7.50mm Width).
- What is the operating temperature range of the SN74HCT245DWE4?
The operating temperature range is -40°C to 85°C.
