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Interdesign 639AS3844E Integrated Circuit IC 18-Pin DIP 1982 Vintage
Interdesign 639AS3844E Integrated Circuit IC 18-Pin DIP 1982 Vintage
Regular price
$7.99 USD
Regular price
Sale price
$7.99 USD
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ITEM SPECIFICS
Brand: Interdesign
MPN: 639AS3844E
Type: Integrated Circuit
Number of Pins: 18
Package: DIP
Mounting Type: Through Hole
Additional Visible Markings: 924C / hand-drawn ink mark near pin 1
Date Code: 8220 (1982, week 20)
Quantity: 1
Condition: New
DESCRIPTION
Interdesign 639AS3844E integrated circuit in an 18-pin dual in-line package. The photographed unit is marked 639AS3844E, INTERDESIGN, 8220, and 924C, with a hand-drawn black ink mark near pin 1. Leads show light solder-coat irregularity; see photos.
Features:
18-pin dual in-line package for through-hole mounting.
Manufacturer and part number marked on the package.
1982 date code.
Made by Interdesign, the Sunnyvale, California semicustom IC company founded by 555 timer designer Hans Camenzind.
Compatibility:
Direct replacement for 639AS3844E and 639AS3844 in equipment that originally used this part. This is an application-specific part number, so match the full marking to the original component on your board before installing.
Q&A:
Q: What does this chip do?
A: The 639AS3844E is an application-specific part number with no public datasheet. Match it to the original part in your equipment.
Q: Who was Interdesign?
A: Interdesign Inc. was founded by Hans Camenzind, designer of the 555 timer, and focused on semicustom integrated circuits under the Monochip name. Ferranti later acquired the company.
Q: What does 8220 mean?
A: 8220 is the date code (1982, week 20).
Troubleshooting:
Compare all markings to the original part before installing.
Confirm pin 1 orientation using the end notch.
Straighten leads gently before inserting into a socket or board.
DISCLAIMER
Please review all photos and specifications before purchasing, and make sure this part is right for your application. Item is sold as shown in the photos.
LEGAL DISCLAIMER
American Industrial Parts Group is not an authorized distributor, reseller, or representative of Interdesign. All product names, trademarks, brands, and logos are the property of their respective owners and are used for identification purposes only. As an independent reseller, the original manufacturer warranty does not apply.
639AS3844E, 639AS3844, Interdesign 639AS3844E, Interdesign IC, Ferranti Interdesign, Interdesign Monochip, semicustom IC, custom IC replacement, 18-pin DIP IC, vintage IC 1982, obsolete integrated circuit, military surplus IC, vintage equipment repair IC.
Thank you for shopping with American Industrial Parts Group!
Brand: Interdesign
MPN: 639AS3844E
Type: Integrated Circuit
Number of Pins: 18
Package: DIP
Mounting Type: Through Hole
Additional Visible Markings: 924C / hand-drawn ink mark near pin 1
Date Code: 8220 (1982, week 20)
Quantity: 1
Condition: New
DESCRIPTION
Interdesign 639AS3844E integrated circuit in an 18-pin dual in-line package. The photographed unit is marked 639AS3844E, INTERDESIGN, 8220, and 924C, with a hand-drawn black ink mark near pin 1. Leads show light solder-coat irregularity; see photos.
Features:
18-pin dual in-line package for through-hole mounting.
Manufacturer and part number marked on the package.
1982 date code.
Made by Interdesign, the Sunnyvale, California semicustom IC company founded by 555 timer designer Hans Camenzind.
Compatibility:
Direct replacement for 639AS3844E and 639AS3844 in equipment that originally used this part. This is an application-specific part number, so match the full marking to the original component on your board before installing.
Q&A:
Q: What does this chip do?
A: The 639AS3844E is an application-specific part number with no public datasheet. Match it to the original part in your equipment.
Q: Who was Interdesign?
A: Interdesign Inc. was founded by Hans Camenzind, designer of the 555 timer, and focused on semicustom integrated circuits under the Monochip name. Ferranti later acquired the company.
Q: What does 8220 mean?
A: 8220 is the date code (1982, week 20).
Troubleshooting:
Compare all markings to the original part before installing.
Confirm pin 1 orientation using the end notch.
Straighten leads gently before inserting into a socket or board.
DISCLAIMER
Please review all photos and specifications before purchasing, and make sure this part is right for your application. Item is sold as shown in the photos.
LEGAL DISCLAIMER
American Industrial Parts Group is not an authorized distributor, reseller, or representative of Interdesign. All product names, trademarks, brands, and logos are the property of their respective owners and are used for identification purposes only. As an independent reseller, the original manufacturer warranty does not apply.
639AS3844E, 639AS3844, Interdesign 639AS3844E, Interdesign IC, Ferranti Interdesign, Interdesign Monochip, semicustom IC, custom IC replacement, 18-pin DIP IC, vintage IC 1982, obsolete integrated circuit, military surplus IC, vintage equipment repair IC.
Thank you for shopping with American Industrial Parts Group!
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