M67T MICRO-ELECTRONICS | Alldatasheet
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Technical content
Q S M67T FE y SIMPLE w MELODY GENERATOR
DESCRIPTION
The M67T 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.
FEATURES
Wide range of supply voltage (1.2 to 3.6V) Maximum or 128 notes Built - in RC oscillator Direct driving capability to 8 ohm speaker ABSOLUTE MAXIMUM RATINGS Supply Voltage 0 to 3.6V Operating Temperature 0 to 70°C Storage Temperature -55 to +125°C Wil IF a “\\\\CRO ELECTRONICS LTD. L) 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 1.5 3.6 Vv Operating Current Idd 8 mA_ |Playing output open Output Current Ioh 75 100 mA (Open Collector) Oscillating Frequency Fose 63 90 117 | KHz Oscillating Start Voltage Vstr 13 v Oscillating Hole Voltage Vh 1.2 Vv PIN ASSIGNMENT (TO-92) TYPICAL APPLICATION CIRCUIT | oc | 1 VSS (Negative power supply) XXX | 2 Output (Open collector) Mé7T \\[JI]| 3VDD (Positive power supply) , | Vdd = Dutput BATTERY ' J ; ev - sey Stor ves @ ohn SPEAKER wv 2 3 ty) t) MICRO ELECTRONICS LTD. REVA Yi, 38, Hung To Road, Microtron Bulding, Kwun Tong, Kowloon, Hong Kong. 20f2 z Kwun Tong P.O. Box 69477 Hong Kong, Fex No. 2341 0321 Telex-43510 Micro Hx. Tel: 2343 0181-5 Page < O'