-
Description
The SC8521 is an electronic component model that can be used in infrared remote control transmitters. It generates output pulses, in accordance with the RC5 protocol, when a key is pressed. The IC does not contain a software programmable processor. However, it does contain a ROM in which the codes that have to be transmitted are stored. The oscillator frequency may be optionally chosen as 432KHz. For 432KHz additional external capacitors must be connected. When a key in the key-matrix is pressed a driveline will be connected to a sense line. This causes the oscillator to start and a corresponding code will be generated conforming to the RC5 protocol.
Specifications and features
∗ RC5 protocol
∗ Maximum of 56 keys (20-pin version)
∗ Option of multi-system or single system transmitter
-- Multi-system: maximum 8 system, selection by key
-- Single system: maximum 8 different systems per IC, selection by jumper wire or switch.
∗ Power-down and key wake-up
∗ High output current (≤45mA)
∗ Oscillator frequency of 432KHz
∗ Multiple key protection
∗ Option of 25% or 33% duty factorApplication Scenarios
The SC8521 electronic component is commonly used in infrared remote control transmitters. It is suitable for applications that require the RC5 protocol and can accommodate a maximum of 56 keys (20-pin version). It offers the option of a multi-system or single system transmitter, with up to 8 systems available for selection. The IC also features power-down and key wake-up functionality, high output current of ≤45mA, and an oscillator frequency of 432KHz. It also provides multiple key protection and the choice of a 25% or 33% duty factor.
Comparison
Advantages- Generates output pulses according to the RC5 protocol
- Suitable for infrared remote control transmitters
- Can accommodate up to 56 keys (20-pin version)
- Option of multi-system or single system transmitter
- Power-down and key wake-up functionality
- High output current of ≤45mA
- Oscillator frequency of 432KHz
- Multiple key protection
- Option of 25% or 33% duty factorDisadvantages- Does not contain a software programmable processor
- Additional external capacitors required for 432KHz oscillator frequency
- Selection of systems may require jumper wire or switch -
Similar parts: 430483 , Click to view
-
Datasheet
-
Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
- View more
Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
- View more
-
Popular parts of the same kind
- Datasheet: Download SC8548CVTSANGB
- Chipdatas Part: CD94-SC8548CVTSANGB
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 02:37 +0800
-
- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
-
The fee is charged according to the rule of PayPal.
-
The fee is charged according to the rule of PayPal.
-
Western Union charge US$0.00 banking fee.
-
We recommend to use bank transfer for large orders to save on handling fees.
-
DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.