SN74ALS640B-1NSR Texas Instruments - Yeehing Electronics

OCTAL BUS TRANSCEIVER 3-STATE

Pricing (USD)

Quantity	Unit Price
1 — 99	3.428
100 — 249	3.004
250 — 999	2.106
1,000 +	1.19

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Bus Transceivers
RoHS	Y
Logic Family	ALS
Input Level	TTL
Output Level	TTL
Output Type	3-State
High Level Output Current	- 15 mA
Low Level Output Current	48 mA
Propagation Delay Time	11 ns
Supply Voltage - Max	5.25 V
Supply Voltage - Min	4.75 V
Minimum Operating Temperature	0 C
Maximum Operating Temperature	+ 70 C
Package / Case	SO-20
Packaging	Reel
Function	Bus Transceiver
Height	1.95 mm
Length	12.6 mm
Number of Circuits	8
Operating Temperature Range	0 C to + 70 C
Product	Standard Transceiver
Series	SN74ALS640B-1
Technology	Bipolar
Width	5.3 mm
Brand	Texas Instruments
Mounting Style	SMD/SMT
Number of Channels	8
Operating Supply Voltage	4.75 V to 5.25 V
Polarity	Inverting
Product Type	Bus Transceivers
Factory Pack Quantity	2000
Subcategory	Logic ICs
Unit Weight	0.009408 oz

For more information, please refer to datasheet

Documents

SN74ALS640B-1NSR Datasheet

More Information

These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon 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.