SN74ALS640B-1DWR is available for purchase but is not normally stocked.
Available Substitutes:

Direct

SN74ALS640B-1DWR
Texas Instruments
In Stock: 0
Unit Price: $2.36397
Datasheet

Parametric Equivalent

SN74ALS640BDWR
Texas Instruments
In Stock: 1,833
Unit Price: $4.29000
Datasheet

Parametric Equivalent

SN74ALS640BDWRE4
Texas Instruments
In Stock: 0
Unit Price: $1.79870
Datasheet
View and Compare All Substitutes
Transceiver, Inverting 1 Element 8 Bit per Element 3-State Output 20-SOIC
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Transceiver, Inverting 1 Element 8 Bit per Element 3-State Output 20-SOIC
20-SOIC Pkg

SN74ALS640B-1DWR

DigiKey Part Number
296-28799-2-ND - Tape & Reel (TR)
Manufacturer
Texas Instruments
Manufacturer Product Number
SN74ALS640B-1DWR
Description
IC TXRX INVERT 5.5V 20-SOIC
Manufacturer Standard Lead Time
6 Weeks
Customer Reference
Detailed Description
Transceiver, Inverting 1 Element 8 Bit per Element 3-State Output 20-SOIC
Datasheet
 Datasheet
EDA/CAD Models
SN74ALS640B-1DWR Models
Product Attributes
Type
Description
Select All
Category
Manufacturer
Texas Instruments
Series
74ALS
Packaging
Tape & Reel (TR)
Part Status
Active
Logic Type
Transceiver, 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
Base Product Number
74ALS640
Product Questions and Answers

See what engineers are asking, ask your own questions, or help out a member of the DigiKey engineering community

Available To Order
Check Lead Time
Quantity
All prices are in USD
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,000$2.36397$4,727.94
4,000$2.31823$9,272.92
Manufacturers Standard Package