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HT1381
HT1381 - Brand New HOLTEK 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
Description
The HT1381-8SOPLF is a serial Timekeeper Chip IC which provides seconds/minutes/hours/day/date/month/year information. The number of days in each month and leap years are automatically adjusted. This is designed for low power consumption and can operate in two modes, one is the 12hour mode with an AM/PM indicator and the other is the 24hour mode. This has several registers to store the corresponding information with 8-bit data format. A 32768Hz crystal is required to provide the correct timing. In order to minimize the pin number, the chip uses a serial I/O transmission method to interface with a microprocessor.
Features
• Operating voltage: 2.0V~5.5V
• Maximum input serial clock: 500kHz at VDD=2V, 2MHz at VDD=5V
• Operating current: less than 400nA at 2V, less than 1.2 μA at 5V
• TTL compatible
- VIH: 2.0V~VDD+0.3V at VDD=5V
- VIL: -0.3V~+0.8V at VDD=5V
• Two data transmission modes: single-byte, or burst mode
• Serial I/O transmission
• All registers store BCD format
• HT1380: 8-pin DIP package
HT1381: 8-pin SOP package
Application
• Microcomputer serial clock
• Clock and Calendar
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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