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Signetics 74S273N Octal D-Type Flip-Flop with Clear Schottky TTL 20-Pin DIP

Signetics 74S273N Octal D-Type Flip-Flop with Clear Schottky TTL 20-Pin DIP

Regular price $3.99 USD
Regular price Sale price $3.99 USD
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ITEM SPECIFICS
Brand: Signetics
MPN: 74S273N
Series: 74S
Type: Octal D-Type Flip-Flop with Clear
Logic Technology: Schottky TTL
Number of Flip-Flops: 8
Trigger Type: Positive-Edge
Output Type: Single-Rail
Package: 20-Pin Plastic DIP
Mounting Type: Through Hole
Additional Visible Markings: SA / green dot / 4S273-F, 46, E (underside)
Date Code: 8322 (1983, week 22)
Quantity: 1
Condition: New

DESCRIPTION
Signetics 74S273N octal D-type flip-flop with clear in a 20-pin plastic dual in-line package. The photographed unit is marked 74S273N, K8322, and SA on top with a green dot, and 4S273-F, 46, and E on the underside.

Features:
Eight D-type flip-flops in one package.
Positive-edge-triggered.
Buffered clock and direct clear inputs.
Individual data input to each flip-flop.
Single-rail outputs.
Schottky TTL for high-speed operation.

Compatibility:
Direct replacement for 74S273N and N74S273N in 20-pin sockets designed for the 74273 pinout. The 74LS273, 74ALS273, and 74F273 share the same octal D flip-flop function in other logic families. Check speed and drive requirements before substituting across families. Common in buffer and storage registers, shift registers, and pattern generators in vintage computer, arcade, and test equipment boards.

Q&A:
Q: What does the 74S273 do?
A: It stores 8 bits of data on the rising edge of the clock and has a direct clear input that resets all outputs.

Q: Can I use a 74LS273 instead?
A: It has the same function in a lower-power family. Confirm your circuit's speed and drive requirements before substituting.

Q: What does K8322 mean?
A: 8322 is the date code (1983, week 22).

Troubleshooting:
Check the supply voltage at the VCC and ground pins.
Hold the clear input inactive during normal operation.
Confirm data is stable before the rising clock edge.
Compare outputs against the datasheet function table.

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 Signetics. 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.

74S273N, 74S273, N74S273N, Signetics 74S273N, 74273, 74LS273, 74F273, 74ALS273, octal D flip-flop, octal D-type flip-flop with clear, 8-bit register IC, Schottky TTL, 20-pin DIP IC, vintage TTL IC 1983, arcade board repair IC, vintage computer repair IC.

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Signetics 74S273N octal D-type flip-flop Schottky TTL 20-pin DIP - image 1 from American Industrial Parts Group
Signetics 74S273N Octal D-Type Flip-Flop with Clear Schottky TTL 20-Pin DIPSIG-74S273N-N
Signetics 74S273N Octal D-Type Flip-Flop with Clear Schottky TTL 20-Pin DIPSIG-74S273N-N
$3.99/ea
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