CMOS Touch Tone Encoder

CMOS LSI(LOW-POWER COMPLEMENTARY MOS) 3 1/2 DIGIT A/D CONVERTER

2-OF-8 KEYPAD-TO-BINARY ENCODER

Tone Dialer LSI

Tone Dialer LSI

DTMF Tone Dialer LSI

CMOS 8-Bit Priority Encoder

CMOS-LSI

CMOS LSI

CMOS LSI