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D8254C-2
D8254C-2 - Brand New NEC 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
OVERVIEW
The D8254 is a programmable interval timer/counter, binary compatible with
industry standard 82C54. The D8254 solves one of the most common problems in
any microcomputer system, the generation of accurate time delays under
software control. The D8254 can be used as a:
● Real time clock
● Even counter
● Digital one-shot
● Programmable rate generator
● Square wave generator
● Binary rate multiplier
● Complex waveform generator
● Complex motor controller
KEY FEATURES
● Three independent 16-bit counters
● Six programmable Counter modes
○ Interrupt on terminal count
○ Hardware retriggerable One-Shot
○ Rate Generator
○ Square wave mode
○ Software triggered strobe
○ Hardware triggered strobe
● Binary or BCD counting
● Status Read Back Command
● Simple interface allows easy connection to microcontrollers
● Fully synthesizable, static design with no internal tri-states
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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