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Part Number: UPD6121

 

MFG: NULL

Package Cooled: SOP

D/C: N/A

Description: The µPD6121, 6122 are infrared remote control transmission ICs using the NEC transmission format that areideal...


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UPD6121 General Description


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.

UPD6121 Maximum Ratings

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

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)
• Data codes:
• µPD6121:  32 codes (single input), 3 codes (double input), expandable up to 64 codes through SEL pin
• µPD6122:  64 codes (single input), 3 codes (double input), expandable up to 128 codes through SEL pin
• µPD6121, 6122 are transmission code-compatible (NEC transmission format) with the µPD1913CNote, 1943GNote,6102GNote, and 6120CNote.
• Pin compatibility:
• µPD6121G-001 is pin-compatible with the  µPD1943G (However, capacitance of capacitor connected tooscillator pin and other parameters vary)
• µPD6122G-001 is pin-compatible with the  µPD6102G (However, capacitance of capacitor connected tooscillator pin and other parameters vary)
• Standard products (Ver. I, Ver. II specifications)Note  Provided for maintenance purpose only

UPD6121 Connection Diagram

UPD6121 Connection Diagram

UPD6121 datasheet

UPD6121
PDF/DataSheet Download

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