DM74ALS245AWMX

Description：IC TXRX NON-INVERT 5.5V 20SOIC
Series：74ALS
Mfr：onsemi
Package：Tape & Reel (TR)

SKU:696f0f105de1 Category: Buffers, Drivers, Receivers, Transceivers Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC TXRX NON-INVERT 5.5V 20SOIC
Series：74ALS
Mfr：onsemi
Package：Tape & Reel (TR)
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：15mA, 24mA
Voltage - Supply：4.5V ~ 5.5V
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Surface Mount
Package / Case：20-SOIC (0.295", 7.50mm Width)
Supplier Device Package：20-SOIC
Grade：-
Qualification：-

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DM74ALS245AWMX

Overview

The onsemi DM74ALS245AWMX is an octal bus transceiver utilizing advanced low-power Schottky TTL technology. It features 3-state outputs and operates within a supply voltage range of 4.5V to 5.5V. The device provides a low-level output current of 24 mA and a high-level output current of -15 mA. Propagation delay ranges from 0 ns to 31 ns, with enable times up to 20 ns. It is housed in a 20-lead SOIC package and functions over a temperature range of 0°C to +70°C.

Feature Summary

Advanced oxide-isolated, ion-implanted Schottky TTL process for low power consumption
Glitch-free bus operation during power-up and power-down sequences
Independent control of A and B bus outputs via DIR and G inputs
Low output impedance suitable for driving terminated transmission lines

Applications

Memory systems
Microprocessor systems
Asynchronous bidirectional data buses

Procurement Notes

Verify the component status as this part may be discontinued or obsolete. Confirm that the manufacturer information aligns with Fairchild Semiconductor specifications, noting potential acquisition history by onsemi. Ensure the datasheet version matches the specific ordering code suffixes for accurate pinout and electrical characteristics.

Selection Notes

Select this component for applications requiring TTL-compatible logic levels and moderate speed. Verify that the operating voltage strictly remains between 4.5V and 5.5V. Consider the 20-lead SOIC package dimensions for PCB layout compatibility. Evaluate thermal dissipation requirements based on the specified junction-to-ambient thermal resistance values.

Part Context

This device belongs to the 74ALS series of logic integrated circuits. It serves as an octal bus transceiver designed for high-speed digital communication. The specific model indicates a surface-mount SOIC package variant. It is part of a broader family of bus transceivers used for data direction control in digital systems.