Holtek Semiconductor HT6221B
the HT6221B device, although mentioned in this datasheet, have already been phased out and are presently no longer available. 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.| Part No. | HT6221B |
|---|---|
| Datasheet | HT6221B Download |
| Manufacturer |  Holtek Semiconductor |
| Description | Multi-Purpose Encoders |
| Buy | Stock & Price |
FEATURES
● Operating voltage: 2.0V~3.6V● DOUT with 38kHz carrier for IR medium
● Low standby current
● Minimum transmission word: one word
● Build-in RC (Internal RC) oscillator
● 16-bit address codes
● 8-bit data codes
● PPM code method
● Three double-active keys
● Maximum active keys - HT6220A: 6 keys (8SOP) or 30 keys (16NSOP) - HT6221A: 32 keys - HT6221B: 48 keys - HT6222A: 64 keys
● Low power and high noise immunity CMOS technology
● HT6220A: selection of 16-pin NSOP or 8-pin SOP package HT6221A/HT6221B: 20-pin SOP package HT6222A: 24-pin SOP package
APPLICATIONS
● Television , setup box and DVD player controllers● Burglar alarm systems
● Smoke and fire alarm systems
● Garage door controllers
● Car door controllers
● Car alarm systems
● Security systems
● Other remote control systems
GENERAL DESCRIPTION
The devices are CMOS LSI encoders designed for use in remote control systems. The HT6220A/HT6221A/HT6221B/HT6222A contain 6keys (K21~K23, K25~K27) or 30keys (K1~K20, K33~K34, K37...
