UPD6122 Datasheet, NEC

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* 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 resis.

Standard (Ver I spec.) Standard (Ver II spec.) Standard (Ver I spec.) Standard (Ver II spec.) PIN CONFIGURATION (Top View) µPD6121 KI0 KI1 KI2 KI3 REM VDD SEL OSCO OSCI VSS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 CCS KI/O0 KI/O1 KI/O2 KI/.