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74AHCT139
74AHCT139 - Brand New Texas Instruments Signal Switches / Encoders & Decoders / Multiplexers
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
General description
The 74AHC139; 74AHCT139 is a high-speed Si-gate CMOS device and is pin
compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance
with JEDEC standard No. 7-A.
The 74AHC139; 74AHCT139 is a high-speed, dual 2-to-4 line
decoder/demultiplexer. This device has two independent decoders, each
accepting two binary weighted inputs (nA0 and nA1) and providing four mutually
exclusive active LOW outputs (nY0 to nY3). Each decoder has an active LOW
enable input (nE). When nE is HIGH, every output is forced HIGH. The enable
input can be used as the data input for a 1-to-4 demultiplexer application.
The 74AHC139; 74AHCT139 is identical to the HEF4556 of the HE4000B family.
Features
■ Balanced propagation delays
■ All inputs have Schmitt-trigger actions
■ Inputs accept voltages higher than VCC
■ Input levels:
◆ For 74AHC139: CMOS level
◆ For 74AHCT139: TTL level
■ ESD protection:
◆ HBM EIA/JESD22-A114E exceeds 2000 V
◆ MM EIA/JESD22-A115-A exceeds 200 V
◆ CDM EIA/JESD22-C101C exceeds 1000 V
■ Multiple package options
■ Specified from −40 °C to +85 °C and from −40 °C to +125 °C
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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