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QD8274
QD8274 - Brand New Intel IC Chips
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
Product Details
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[ ROCHESTER ]
PROGRAMMABLE COMMUNICATION INTERFACE
The 8251A is the industry standard Universal Synchronous/Asynchronous
Receiver/Transmitter (USART) designed for data communications with
microprocessor families such as MCS-48, 80, 85, and iAPX 86, 88. The 8251A is
used as a peripheral device and is programmed by the CPU to operate using
virtually any serial data transmission technique presently in use (including
IBM “bi-sync”). The USART accepts data characters from the CPU in parallel
format and then converts them into a continuous serial data stream for
transmission.
Simultaneously, it can receive serial data streams and convert them into
parallel data characters for the CPU. The USART will signal the CPU whenever
it can accept a new character for transmission or whenever it has received a
character for the CPU. The CPU can read the complete status of the USART at
any time. These include data transmission errors and control signals such as
SYNDET, TxEMPTY. The chip is fabricated using Intel’s high performance HMOS
technology.
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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