M67 MICRO-ELECTRONICS | Alldatasheet
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Technical content
a
4 M67
z E y SIMPLE w MELODY GENERATOR
DESCRIPTION
The M67 series are low power CMOS LSI in TO-92 package, designed for the application of melody generation. The built in oscillator and strong driving capability minimise the external components required. A maximum of 128 notes can be programmed and repeat mode. It is suitable for use in melody cards, toys and other similar applications. PIN ASSIGNMENT (TO-92)
FEATURES
M67 . . . 2 1 VSS (Negative power supply) Wide range of supply voltage (1.2 to 3.6V. . S Pply Be ( ) | XXX | 2 Output (Output Terminal) Maximum or 128 notes age — . \\| 3 VDD (Positive power supply) Built - in RC oscillator Low power consumption Direct driving capability to piezo-buzzer / ff Vv 23 ABSOLUTE MAXIMUM RATINGS Supply Voltage 0 to 3.6V Operating Temperature 0 to 70°C Storage Temperature -55 to +125°C y Ws MICRO ELECTRONICS LTD. W7,,, & G4 38, Hung To Road, Microtron Bulding, Kwun Tong, Kowloon, Hong Kong REVA
ELECTRICAL CHARACTERISTICS
(Vdd=1.5V Vss=0V Ta=25°C unless otherwise specified) PARAMETER SYMBOL| MIN TYP MAX | UNIT CONDITIONS Operating Voltage Vdd 1.2 15 3.6 v Operating Current Idd 14 50 uA {Playing output open Output Low Current lol 2 8 mA _ |Vol = 0.75V Output High Current Toh 2 6 mA |Voh = 0.75V Oscillating Frequency Fose 63 90 117 | KHz Oscillating Start Voltage Vstr 13 Vv Oscillating Hole Voltage Vh 1.2 Vv TYPICAL APPLICATION CIRCUIT A. LEVEL HOLD MODE FOR PIEZO B. LEVEL HOLD MODE FOR SPEAKER M67 Me7 . . BATTERY [+ Lpartery + bohm SPEAKER > 12¥-3.6¥ 7 10 ves J > 12v-368V 77 10uF vss | BUZZER | i 8050 Wy) } # 4 N\\CRO ELECTRONICS LTD REVA Yi, Uf ty 38. Hung To Road, Microtron Buiding, Kwun Tong, Kowloon, Hong Kong. age 2 of 2 : Kwun Tong P.O. Box 68477 Hong Kong, Fax No. 2341 0321 Telex 43510 Micro Hx. Tel: 2343 0181-5 Pag