Overview
The 74LVC245APW,118 is an 8-bit bus transceiver with 3-state outputs, manufactured by Nexperia (previously part of NXP Semiconductors). This device is designed for high-performance and low-power applications, making it suitable for a wide range of digital systems. It features an output enable (OE) and a send/receive (DIR) pin for direction control, allowing for flexible data transmission and reception.
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC245APW | n.a. | n.a. | CMOS/LVTTL | ± 24 | 2.9 | 8 | 175 | low | -40 ~ 125 | TSSOP20 |
Key Features
- Wide supply voltage range: From 1.2 V to 3.6 V, making it versatile for various applications.
- CMOS low-power consumption: Reduces power usage, ideal for battery-powered devices.
- Direct interface with TTL levels: Compatible with TTL logic levels, enhancing interoperability.
- Overvoltage tolerant inputs: Inputs are tolerant up to 5.5 V, providing protection against voltage spikes.
- IOFF circuitry: Prevents backflow current when the device is powered down, ensuring safe operation.
- ESD protection: Human Body Model (HBM) exceeds 2000 V and Charged Device Model (CDM) exceeds 1000 V.
- Bus hold on all data inputs (74LVCH245A only): Maintains the last state of the input signal, preventing floating inputs.
Applications
- Embedded Systems: Suitable for use in microcontrollers, microprocessors, and other embedded systems due to its low power consumption and wide voltage range.
- Industrial Automation: Used in industrial control systems where reliable and robust data transmission is crucial.
- Consumer Electronics: Found in various consumer electronic devices such as smartphones, tablets, and laptops due to its compatibility with TTL levels and low power consumption.
- Automotive Systems: Used in automotive electronics for its robustness and ability to operate over a wide temperature range.
Q & A
- What is the primary function of the 74LVC245APW,118?
The primary function is to act as an 8-bit bus transceiver with 3-state outputs, enabling data transmission and reception between two buses.
- What is the voltage range for the 74LVC245APW,118?
The device operates over a wide supply voltage range from 1.2 V to 3.6 V.
- What are the logic switching levels of the 74LVC245APW,118?
The device uses CMOS/LVTTL logic switching levels.
- What is the output drive capability of the 74LVC245APW,118?
The output drive capability is ± 24 mA.
- What is the maximum propagation delay (tpd) of the 74LVC245APW,118?
The maximum propagation delay is 2.9 ns.
- What is the maximum frequency (fmax) of the 74LVC245APW,118?
The maximum frequency is 175 MHz.
- What type of package does the 74LVC245APW,118 come in?
The device comes in a TSSOP20 package.
- What is the operating temperature range of the 74LVC245APW,118?
The device operates from -40 °C to +125 °C.
- Does the 74LVC245APW,118 have ESD protection?
Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What is the purpose of the IOFF circuitry in the 74LVC245APW,118?
The IOFF circuitry prevents backflow current when the device is powered down.
