HX2272 Remote decoder circuit
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1. Description
HX2272 / 2262 is a remote control for decoding circuit. The chipset using CMOS technology. The pin-site data and coding through a serial code for the application of RF or IR model. HX2272 have up to three of the 12-bit address pins provide 531,441 addresses code, which greatly reduce any wrong code and the possibility Series yards. Meanwhile HX2272 counterpart different applications have different options: multiple data output pin; Latch output; Instant output.
2. Features
- Low-power CMOS technology
- SNR up to 12 three-pin-code addresses can
- 6 Data-pin wide
- Operating voltage range: 3 to 18V
- Instantaneous output latch
- DIP package
- RC oscillator
3 Applications
- Car security system home security / automation system
- Garage door controller
- Fans remote home security / automation systems
- Industrial remote control
- Toys with remote control
4. Pinout
| Pinout 18-lead package |
Pin name | Input/Output | Note | |
|---|---|---|---|---|
| 1 ~ 6 | A0 ~ A5 | I | # # 0 -5 yards address pins. HX2272 3 through 6 of this state of the pin to determine bit0 - bit5 coding waveform. Each pin respectively were home to "0" and "1" or "f" (vacant) | |
| 7 ~ 8 10 ~ 13 | A6/D5 ~ A11/D0 | I/O | # 6 # 11 yards address pins or # 5 # -0 data output pin. According to the different specifications HX2272 suffix, as a high six-pin code can address pins can be used as data output pin. When these pins used as a pin-code addresses, each pin can be home to "0" and "1" or "f" (vacant). When used as a data output pins, at the same time comply with the following two conditions under the premise of output "1" (Vcc), or "0" (Vss). (1), accepted by the address coding and code addresses waveform input settings matching;
(2), corresponding to the receiver of the data output for the home, "one." | |
| 14 | DIN | I | Data input pins, receive encoded signals from the pin serial input. | |
| 15 | OSC1 | I | An external oscillator section points. |
This two - one external resistor to determine the basic HX2272 oscillation frequency. |
| 16 | OSC2 | O | The second external oscillator points. | |
| 17 | VT | O | Effective transfer, terminated effective. When HX2272 receipt of a valid signal, VT into terminated. | |
| 18 | Vcc | -- | Power | |
| 9 | Vss | -- | Power negative | |
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