SN74HC645DWR

$0.95

Description：IC TXRX NON-INVERT 6V 20SOIC
Series：74HC
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:d9091603da9d Category: Buffers, Drivers, Receivers, Transceivers Brand: Texas Instruments

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Product introduction

SN74HC645DWR is listed in the Buffers, Drivers, Receivers, Transceivers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC TXRX NON-INVERT 6V 20SOIC. Review the specifications below when checking this part for your BOM.

Buffers, Drivers, Receivers, Transceivers specifications for SN74HC645DWR

Description：IC TXRX NON-INVERT 6V 20SOIC
Series：74HC
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
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：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：20-SOIC (0.295", 7.50mm Width)
Supplier Device Package：20-SOIC
Grade：-
Qualification：-

Buffers, Drivers, Receivers, Transceivers datasheet and documents for SN74HC645DWR

SN74HC645DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC645DWR is an octal bus transceiver from the Texas Instruments HC logic family, housed in a 20-pin SOIC package. It operates within a supply voltage range of 2 V to 6 V and supports a wide operating temperature range of -40°C to +85°C. The device features high-current 3-state outputs capable of driving up to 15 LSTTL loads, with output drive currents specified at ±6 mA at 5 V. Typical propagation delay is 12 ns, while maximum values reach 22 ns at 6 V with a 50 pF load. Maximum quiescent current is 80 µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

Provides asynchronous two-way communication between data buses via direction control
Features high-current 3-state outputs for driving heavy loads
Includes output-enable input for effective bus isolation

Buffers, Drivers, Receivers, Transceivers Applications

Asynchronous two-way communication between data buses
Bus-oriented architectures requiring bidirectional data transfer
Systems utilizing LSTTL loads on CMOS buses

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DWR' corresponds to the tape and reel packaging format containing 2000 units per reel. Confirm that the RoHS status is compliant and check the lead finish designation (NIPDAU) against assembly requirements. Ensure the moisture sensitivity level rating aligns with your facility's reflow soldering profile capabilities.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional data flow control is required between parallel buses. The HC series offers low power consumption compared to older logic families. Verify that the 2 V to 6 V operating voltage range matches the system power supply. Consider the 20-pin SOIC footprint constraints during PCB layout planning.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74HC645 family of octal bus transceivers. It is functionally similar to the SN74HC245 but includes a dedicated direction control pin for explicit bus management. The 'DWR' suffix specifically denotes the surface-mount SOIC package variant supplied in tape and reel format for automated assembly processes.