| 类型 | 编码器** |
|---|---|
| 封装 | 24SOP, Chip, Wafer |
| 批号 | HT6222A |
| 品牌 | HOLTEK/合泰 |
| 型号 | HT6222A |
HT6222A -- Multi-Purpose Encoders
General Description
The devices are CMOS LSI encoders designed for use in remote control systems. They are capable of encoding 16-bit address codes and 8-bit data codes. Each address/data input can be set to one of the two logic states, 0 and 1.
The HT6220A/HT6221A/HT6221B/HT6222A contain 30keys (K1~K20, K33~K34, K37~K38, K41~K42, K45~K46, K49~K50), 32 keys (K1~K32), 48 keys (K1~K32, K33~K34, K37~K38, K41~K42, K45~K46, K49~K50, K53~K54, K57~K58, K61~K62) and 64 keys (K1~K64), respectively. When one of the keys is triggered, the programmed address/data is transmitted together with the header bits via an IR (38kHz carrier) transmission medium.
Features Operating voltage: 2.0V~3.6VDOUT with 38kHz carrier for IR mediumLow standby currentMinimum transmission word: one wordBuild-in RC (Internal RC) oscillator16-bit address codes8-bit data codesPPM code methodThree double-active keysMaximum active keys:-- HT6220A: 30 keys -- HT6221A: 32 keys -- HT6221B: 48 keys -- HT6222A: 64 keysLow power and high noise immunity CMOS technologyHT6220A: 16-pin NSOP package HT6221A/HT6221B: 20-pin SOP package HT6222A: 24-pin SOP package |