Features

 

• Operating Voltage: 2.2V~3.3V (Default 3.0V)

 

• Operating Frequency: Default 3.6 MHz

 

• Low Standby Current

 

• Built-in 1024 Notes with 15 Tempos and 7 Beats

 

• Tone1/Tone2 volume ratio is controllable: 2:1 or 1:1

 

• 4 Instruments (Piano, Echo, Harmonica, Xylophone) and 8 Timbres can be selected for Tone1

 

• 8 sequential/direct trigger keys with one-shot-with-level-hold function

 

• PWM output for driving speaker directly

 

• 1 LED output flashed with rhythm and 1 CNTO output for driving motor

 

 

 

„ Block Diagram

 

 

 

 

OSCO

 

OSCI

 

 

TR1  TR2  TR3  TR4  TR5  TR6  TR7  TR8

 

 

 

 

	Tone	Envelop	PWM	PWM1
Oscillator	Generator	Generator	PWM
			Generator	PWM2
			output

 

 

 

Key	Address	ROM
Matrix	Counter
Controller

 

Rhythm	LED out	LED
Generator
	CNTO out	CNTO

 

 

 

 

 

„ Electrical Characteristics

 

Parameter	Symbol	Min.	Typ.	Max.	Unit	Condition
Operating Voltage	VDD	2.2	3.0	3.3	V	Power for Control Logic
Operating Frequency	FOSC		3.6		MHz	VDD = 3.0V, Rosc=10k ohm
Active Current	IDD		600		uA	VDD = 3.0V, Fosc=3.6MHz, no load
Standby Current	ISTB			1	uA	VDD = 3.0V
Input High Voltage	VIH	2.1			V	VDD = 3.0V
Input Low Voltage	VIL			0.9	V	VDD = 3.0V
PWM Drive Current	IPWM		100		mA	VDD = 3.0V
LED Drive Current	ILED		10		mA	VDD = 3.0V
CNTO Driving Current	ICNTO		7		mA	VDD = 3.0V