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MC74HC245ADT
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Product Detailed Parameters
- Description：IC TXRX NON-INVERT 6V 20TSSOP
- Series：74HC
- Mfr：onsemi
- Package：Tube,Tube
- Logic Type：Transceiver, Non-Inverting
- Number of Elements：1
- Number of Bits per Element：8
- Input Type：-
- Output Type：3-State
- Current - Output High, Low：7.8mA, 7.8mA
- Voltage - Supply：2V ~ 6V
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-TSSOP
- Grade：-
- Qualification：-
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Overview
The MC74HC245ADT is an octal 3-state non-inverting bus transceiver manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 6.0 V and supports bidirectional data flow controlled by a direction pin. The device features low input current and high noise immunity, making it suitable for asynchronous communication between data buses. It utilizes silicon-gate CMOS technology and includes active-low output enable functionality to place I/O ports into high-impedance states.
Feature Summary
- Octal 3-state non-inverting bus transceiver architecture
- Bidirectional data flow control via dedicated direction pin
- Active-low output enable for high-impedance state management
- LSTTL compatible input levels for TTL/NMOS interfacing
Applications
- Asynchronous communication between data buses
- Level conversion for interfacing TTL or NMOS outputs to High Speed CMOS inputs
- Memory and memory mapping applications
Procurement Notes
Verify the specific suffix 'DT' against the official datasheet to confirm package type and tape/reel specifications. Ensure the operating temperature range and supply voltage requirements align with system constraints. Confirm RoHS compliance status as per the latest manufacturer documentation before procurement.
Selection Notes
Select this component when an octal transceiver with LSTTL-compatible inputs is required for 2-way asynchronous communication. It serves as a direct pinout replacement for LS245 devices while offering improved performance through silicon-gate CMOS technology. Consider the 2.0 V to 6.0 V operating range for flexibility in various logic families.
Part Context
This part belongs to the 74HC series of high-speed CMOS logic devices produced by onsemi. It is functionally identical in pinout to the standard LS245 but offers enhanced characteristics typical of HC technology. The device is designed for general-purpose digital applications requiring reliable bus driving and level shifting capabilities.
Replacement Considerations
The MC74HCT245A is a related variant within the same family. Verify if HCT input compatibility is preferred over HC specifications for the target application.
