Texas Instruments SN74ALS640B-1DW, 1 Bus Transceiver, 8-Bit Inverting TTL, 20-Pin SOIC

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Discontinued product

Technical data sheets

Advanced Low-Power Schottky Bipolar Logic
Operating Voltage 4.5 to 5.5
Compatibility: Input TTL, Output TTL

74ALS Family

Attribute	Value
Logic Family	ALS
Logic Function	Bus Transceiver
Number of Elements per Chip	1
Number of Channels per Chip	8
Polarity	Inverting
Mounting Type	Surface Mount
Package Type	SOIC
Pin Count	20
Input Level	TTL
Output Level	TTL
Maximum High Level Output Current	-15mA
Maximum Low Level Output Current	48mA
Maximum Propagation Delay Time @ Maximum CL	11 ns @ 5.5 V
Dimensions	12.8 x 7.52 x 2.35mm
Propagation Delay Test Condition	50pF
Maximum Operating Temperature	+70 °C
Length	12.8mm
Maximum Operating Supply Voltage	5.25 V
Width	7.52mm
Minimum Operating Supply Voltage	4.75 V
Height	2.35mm
Minimum Operating Temperature	0 °C