Specification	SN74ABT640PW

Current - Output High, Low [custom]	64 mA
Current - Output High, Low [custom]	32 mA
Logic Type	Transceiver, Inverting
Mounting Type	Surface Mount
Number of Bits per Element	8
Number of Elements	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	3-State
Package / Case	20-TSSOP
Package / Case [x]	0.173 in
Package / Case [y]	4.4 mm
Supplier Device Package	20-TSSOP
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN74ABT640 Series

Octal Bus Transceivers With 3-State Outputs

Part	Package / Case	Package / Case [y]	Package / Case [y]	Mounting Type	Number of Bits per Element	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Logic Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Elements	Output Type	Supplier Device Package	Package / Case [x]
Texas Instruments SN74ABT640DWRE4	20-SOIC	0.295 in	7.5 mm	Surface Mount	8	85 °C	-40 °C	64 mA	32 mA	Inverting Transceiver	4.5 V	5.5 V	1	3-State	20-SOIC
Texas Instruments SN74ABT640PWR	20-TSSOP	4.4 mm		Surface Mount	8	85 °C	-40 °C	64 mA	32 mA	Inverting Transceiver	4.5 V	5.5 V	1	3-State	20-TSSOP	0.173 in
Texas Instruments SN74ABT640DB	20-SSOP			Surface Mount	8	85 °C	-40 °C	64 mA	32 mA	Inverting Transceiver	4.5 V	5.5 V	1	3-State	20-SSOP
Texas Instruments SN74ABT640DW	20-SOIC	0.295 in	7.5 mm	Surface Mount	8	85 °C	-40 °C	64 mA	32 mA	Inverting Transceiver	4.5 V	5.5 V	1	3-State	20-SOIC
Texas Instruments SN74ABT640PW	20-TSSOP	4.4 mm		Surface Mount	8	85 °C	-40 °C	64 mA	32 mA	Inverting Transceiver	4.5 V	5.5 V	1	3-State	20-TSSOP	0.173 in
Texas Instruments SN74ABT640DWR	20-SOIC	0.295 in	7.5 mm	Surface Mount	8	85 °C	-40 °C	64 mA	32 mA	Inverting Transceiver	4.5 V	5.5 V	1	3-State	20-SOIC

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 2.34
		10	$ 2.10
		70	$ 1.98
		140	$ 1.69
		280	$ 1.59
		560	$ 1.39
		1050	$ 1.15
		2520	$ 1.07
		5040	$ 1.03
Texas Instruments	TUBE	1	$ 1.76
		100	$ 1.45
		250	$ 1.04
		1000	$ 0.79

Description

General part information

SN74ABT640 Series

The 'ABT640 bus transceivers are designed for asynchronous communication between data buses. These devices transmit inverted data from the A bus to the B bus or from the B bus to the A bus, depending on the level at the direction-control (DIR) input. The output-enable () input can be used to disable the device so that the buses are effectively isolated.

To ensure the high-impedance state during power up or power down,should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN54ABT640 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT640 is characterized for operation from -40°C to 85°C.

Documents

Technical documentation and resources

SN74ABT640PW

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SN74ABT640PW

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Technical Specifications

SN74ABT640 Series

Pricing

Description

SN74ABT640 Series

Documents

Semiconductor Packing Material Electrostatic Discharge (ESD) Protection

Live Insertion

Quad Flatpack No-Lead Logic Packages (Rev. D)

LOGIC Pocket Data Book (Rev. B)

Selecting the Right Level Translation Solution (Rev. A)

Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices

Family of Curves Demonstrating Output Skews for Advanced BiCMOS Devices (Rev. A)

Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)

Advanced Bus Interface Logic Selection Guide

Octal Bus Transceivers With 3-State Outputs datasheet (Rev. C)

Input and Output Characteristics of Digital Integrated Circuits

Advanced BiCMOS Technology (ABT) Logic Enables Optimal System Design (Rev. A)

Designing With Logic (Rev. C)

Understanding Advanced Bus-Interface Products Design Guide

Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)

Logic Guide (Rev. AB)

TI IBIS File Creation, Validation, and Distribution Processes

Implications of Slow or Floating CMOS Inputs (Rev. E)

Advanced BiCMOS Technology (ABT) Logic Characterization Information (Rev. B)

SN74ABT640 Series