Overview
The MC74HC245ADW, produced by onsemi, is a high-performance silicon-gate CMOS octal 3-state noninverting bus transceiver. This device is identical in pinout to the LS245 and is designed for 2-way asynchronous communication between data buses. It features an active-low Output Enable pin that places the I/O ports into high-impedance states, and a Direction control that determines the data flow direction between buses A and B. The MC74HC245ADW is compatible with standard CMOS outputs and, with external pull-up resistors, can also interface with LSTTL outputs.
Key Specifications
| Attribute | Value |
|---|---|
| Logic Circuit | Transceiver |
| Family | A/HC/T/U |
| No of Functions / Channels | 2 |
| Output Characteristics | 3-State |
| Supply Voltage-Nom | 2V to 6V |
| No of Inputs | 8 |
| Package Style | SOIC-20 |
| Mounting Method | Surface Mount |
| Operating Temperature Range | -55°C to 125°C |
| Maximum High-Level Input Voltage | 2.0 to 6.0 V (dependent on VCC) |
| Maximum Low-Level Input Voltage | 0.5 to 1.8 V (dependent on VCC) |
Key Features
- Output Drive Capability: 15 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V
- Low Input Current: 1 µA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A
- Chip Complexity: 308 FETs or 77 Equivalent Gates
- Pb-Free Packages are Available
- AEC-Q100 Qualified and PPAP Capable for automotive and other applications requiring unique site and control change requirements
Applications
The MC74HC245ADW is suitable for various applications requiring 2-way asynchronous communication between data buses. It can be used in:
- Data transmission and reception in digital systems
- Level conversion for interfacing TTL or NMOS outputs to high-speed CMOS inputs
- Automotive systems due to its AEC-Q100 qualification
- General-purpose logic circuits where high noise immunity and low power consumption are required
Q & A
- What is the primary function of the MC74HC245ADW?
The MC74HC245ADW is a 3-state noninverting bus transceiver used for 2-way asynchronous communication between data buses.
- What is the operating voltage range of the MC74HC245ADW?
The operating voltage range is from 2.0 to 6.0 V.
- How many inputs and outputs does the MC74HC245ADW have?
The device has 8 inputs and 8 outputs.
- What is the package style of the MC74HC245ADW?
The package style is SOIC-20.
- Is the MC74HC245ADW compatible with LSTTL outputs?
Yes, with external pull-up resistors, it is compatible with LSTTL outputs.
- What is the maximum high-level input voltage for the MC74HC245ADW?
The maximum high-level input voltage ranges from 1.5 to 4.2 V, dependent on VCC.
- Does the MC74HC245ADW have Pb-Free packages available?
Yes, Pb-Free packages are available.
- What is the chip complexity of the MC74HC245ADW?
The chip complexity is 308 FETs or 77 equivalent gates.
- Is the MC74HC245ADW AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified and PPAP capable.
- What is the storage temperature range for the MC74HC245ADW?
The storage temperature range is from -65°C to +150°C.
