74HC245N

The 74HC245 is an 8-bit transceiver IC with 3-state output. Meaning it has two set of pins (A0-A7 and B0-B7), in which each set has 8 pins. Out of these two sets one set can be used as input and the other set can be used as output. Since the IC is a transceiver IC, Data can flow from input bus to output bus and also from output bus to input bus, by simply toggling the Direction pin (DIR) pin as required. It also has a decent output current of 35mA and hence can be used to drive nominal loads.

So if you are looking for an IC to act as a buffer or as a transceiver for your address or data bus. Or if you are looking for an IC to act as a 8-bit logic level converter then 74HC245 IC might be the right choice for you. It is also possible to use this IC for establishing communication protocol buses (SPI, IIC etc) between two different MCU/MPU with different operating voltages since the IC has high speed buffer

Technical Specification

• 8-bit transceiver with 3-state
• Supply Voltage: 2V to 6V
• Output Voltage is equal to Vcc
• Minimum Input Voltage: 0.8V
• Maximum Input Voltage: 4.2V
• Minimum Output Voltage: 1.9V
• Maximum Output Voltage: 5.4V
• Output Current: 35mA
• Off-State Output Current: 10uA
• Non-Inverting, hence easy to interface