Features: • Low-voltage operation: VDD = 2.0 to 3.3 V• Low current dissipation: 1 µA Max. (at standby)• Custom codes: 65,536 (set by external diodes and resistors)• Data codes:• µPD6121: 32 codes (single input), 3 codes (double input), expandable up to 64 ...
UPD6121: Features: • Low-voltage operation: VDD = 2.0 to 3.3 V• Low current dissipation: 1 µA Max. (at standby)• Custom codes: 65,536 (set by external diodes and resistors)• Dat...
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Parameter |
Symbol |
Ratings |
Unit |
Supply voltage |
VDD |
0.3 to +6.0 |
V |
Input voltage |
VI |
0.3 to VDD + 0.3 |
V |
Power dissipation |
PD |
250 |
mW |
Operating ambient temperature |
TA |
20 to +75 |
˚C |
Storage temperature |
Tstg |
40 to +125 |
˚C |
The µPD6121, 6122 are infrared remote control transmission ICs using the NEC transmission format that areideallysuited for TVs, VCRs, audio equipment, air conditioners, etc. By combining external diodes andresistors, a maximumof 65,536 custom codes can be specified. These ICs come in small packages, thusfacilitating the design of lightand compact remote control transmitters.
The NEC transmission format consists of leader codes, custom codes (16 bits), and data codes (16 bits). Itcanbe used for various systems through decoding by a microcontroller.