Overview
The 74HC245PW/AU118 is an 8-bit bus transceiver with 3-state outputs, manufactured by NXP USA Inc. (now part of Nexperia). This device is designed to facilitate bidirectional data transfer between two buses. It features an output enable (OE) and a send/receive (DIR) pin for direction control, making it versatile for various digital circuit applications.
Key Specifications
| Type number | VCC(A) (V) | VCC(B) (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Nr of bits | fmax (MHz) | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC245PW | n.a. | n.a. | CMOS | ± 7.8 | 7.0 | 8 | 36 | low | -40~125 | TSSOP20 |
Key Features
- Output Enable and Direction Control: The device includes an output enable (OE) and a send/receive (DIR) pin, allowing for flexible control over data direction.
- 3-State Outputs: Each output can be set to a high, low, or high-impedance state, which is useful for bus applications.
- CMOS Logic Levels: The 74HC245 operates at CMOS logic levels, making it compatible with a wide range of digital circuits.
- ESD Protection: The device offers high ESD protection, exceeding 2000 V for HBM and 1000 V for CDM.
- Temperature Range: Operates from -40 °C to +125 °C, making it suitable for various environmental conditions.
Applications
- Automotive Systems: Suitable for use in automotive electric pumps, Heating Ventilation and Air Conditioning (HVAC), and transmission and gearbox systems.
- General Purpose Logic: Can be used in a variety of general-purpose logic applications where bidirectional data transfer is required.
- Industrial Control Systems: Applicable in industrial control systems that require reliable and flexible data communication.
Q & A
- What is the primary function of the 74HC245PW?
The primary function of the 74HC245PW is to act as an 8-bit bus transceiver with 3-state outputs, enabling bidirectional data transfer between two buses.
- What are the logic switching levels of the 74HC245PW?
The 74HC245PW operates at CMOS logic levels.
- What is the output drive capability of the 74HC245PW?
The output drive capability of the 74HC245PW is ± 7.8 mA.
- What is the maximum propagation delay of the 74HC245PW?
The maximum propagation delay of the 74HC245PW is 7.0 ns.
- What is the maximum operating frequency of the 74HC245PW?
The maximum operating frequency of the 74HC245PW is 36 MHz.
- What type of ESD protection does the 74HC245PW offer?
The 74HC245PW offers ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What is the operating temperature range of the 74HC245PW?
The operating temperature range of the 74HC245PW is from -40 °C to +125 °C.
- What package type is the 74HC245PW available in?
The 74HC245PW is available in a TSSOP20 package.
- Is the 74HC245PW compliant with any industry standards?
Yes, the 74HC245PW complies with JEDEC standards JESD8C and JESD7A.
- What are some common applications of the 74HC245PW?
The 74HC245PW is commonly used in automotive systems, general-purpose logic applications, and industrial control systems.
