128 NOTES DUAL TONE MELODY GENERATOR PWM OUTPUT DIRECT TO BUZZER AND SPEAKER
DESCRIPTION
The UTC UM68TXX series are CMOS LSI designed for
using in door bell, telephone and toy application. It is an on-chip
ROM programmed for musical performance. Produced by
CMOS technology, the device results in very low power
consumption. Since the UTC UM68TXX series include
oscillation circuits a compact melody module can be constructed
with only a few additional components.
FEATURES
* 128-Note Rom memory
* 2.5V ~ 5V power supply and low power consumption
* Dynamic speaker can be driven with external NPN transistor
* 14 tempos available through mask setting
* 15 beats available
* 27 notes (including rest) available
* OSC resistor hold mode
* Power on reset: melody begins from the first note
* Built in level hold mode
* PWM output |
