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XR88C681CP-40
XR88C681CP-40 - Brand New EXAR UARTs (Universal Asynchronous Receiver Transmitter)
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 EXAR Dual Universal Asynchronous Receiver and Transmitter (DUART) is a
data communications device that provides two fully independent full duplex
asynchronous communication channels in a single package. The DUART is designed
for use in microprocessor based systems and may be used in a polled or
interrupt driven environment.
The XR88C681 device offers a single IC solution for the 8080/85, 8086/88, Z80,
Z8000, 68xx and 65xx microprocessor families.
FEATURES
● Two Full Duplex, Independent Channels
● Asynchronous Receiver and Transmitter
● Quadruple-Buffered Receivers and Dual Buffered Transmitters
● Programmable Stop Bits in 1/16 Bit Increments
● Internal Bit Rate Generators with More than 23 Bit Rates
● Independent Bit Rate Selection for Each Transmitter and Receiver
● External Clock Capability
● Maximum Bit Rate: 1X Clock - 1Mb/s, 16X Clock - 125kb/s
● Normal, AUTOECHO, Local LOOPBACK and Remote LOOPBACK Modes
● Multi-function 16 Bit Counter/Timer
● Interrupt Output with Eight Maskable Interrupt Conditions
● Interrupt Vector Output on Acknowledge (40 Pin DIP and 44 Pin PLCC Packages
Only)
● Programmable Interrupt Daisy Chain
● 8 General Purpose Outputs (40 Pin DIP and 44 Pin PLCC Packages Only)
● 7 General Purpose Inputs with Change of States Detectors on Inputs (40 Pin
DIP and 44 Pin PLCC Packages Only)
● Multi-Drop Mode Compatible with 8051 Nine Bit Mode
● On-Chip Oscillator for Crystal
● Standby Mode to Reduce Operating Power
● Compatible with the Motorola MC2681 and Signetics SCC2692 devices
● Advanced CMOS Low Power Technology
APPLICATIONS
● Multimedia Systems
● Serial to Parallel/Parallel to Serial Converter
● DTE for Modem Communication Systems
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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