Official Hobby Components Online Store | Buy Electronic Kits, Components, Boards, Shields, Modules

SN74HC139N - Decoder / Demultiplexer

SN74HC139N - Decoder / Demultiplexer - Main image
SN74HC139N - Decoder / Demultiplexer
$0.51 $0.78 In stock

Category: ICs

The SN74HC139N is a 2-to-4 dual Decoder/Demultiplexer designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay time of these decoders and the enable...

Check your selection

Confirm your chosen option and quantity before paying.

Delivery timing

Check the estimate before ordering for a particular date.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
Refund enquiries

Contact the store with the order number and item you are asking about.

Please contact us for the refund processing timeframe before returning an item.

View policy
Shipping charges

Review the charge for your selected delivery service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Planning a return

Contact the store before returning an item; the policy below applies.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Henry Y. ★★★★★

Was looking for a decoder with low propagation delay for a college project, and these chips are delivering exactly that. The dual 2-to-4 layout saved me board space for two separate address lines.

Daniel ★★★★★

Pulled the trigger on these for a memory bank expansion project, and the dual 2-to-4 decoder layout makes wiring a breeze—each channel works independently without any glitchy cross-talk.

Penelope ★★★★★

Propagation delay on this chip is impressively short—my address decoding circuit responds instantly now. Used it to clean up a messy multiplexer setup, and the dual 2-to-4 layout saved me space on the board.

Related Products