FT66T-xx SIMPLE MELODY GENERATOR FEATURES FUNCTIONS 127-note ROM memory 1.3V to 3.3V power supply and low power consumption RC oscillator on chip One shot or level hold mode Sound range: 4 octaves, 2 series Tempo: 16 kinds (presto-largo) Direct piezo drive Solution of automatic stop or repeat of the melody Dynamic speaker can be driven with external NPN transistor Two or three times repeat of melody (mask option) Each note can be individually programmed to be staccato or legato (mask option) Changing the contents of melody is possible by reprogramming the maskable ROM Power on reset; melody begins from the first note Start from the head of melody Bare chip is available DESCRIPTION The FT66T is a CMOS LSI chip which electronically plays a prearranged melody. Selection of melody start signal is possible by mask option: orders specification suffix "L" indicate Level Hold Mode, and suffix "S" indicate One Shot Mode. The Universal version (as One Shot or Level Hold Mode) is possible also (suffix "U"). ABSOLUTE MAXIMUM RATINGS (Ta = 25oC) Characteristic Symbol DC Supply Voltage Value Unit V VCC – VSS -0.3 ~ 3.5 Input Voltage VIN VSS – 0.3 ~ VCC – 0.3 Operating Temperature Topr -20 ~ +65 o C Storage Temperature Tstg -55 ~ +125 o C ELECTRICAL CHARACTERISTICS (Ta = 25oC, Characteristic Operating Voltage Supply Current Symbol VCC = 1.5V ; unless otherwise specified) Test Condition VCC Stand-by Operating Output Drive Current V Min Typ Max 1.3 1.5 3.3 V 0.1 1 A IS ICC Output open IOH VCC =1.3V, VO =0.8V 0.6 1.5 0.6 1.5 Output Sink Current IOL VCC =1.3V, VO =0.5V Frequency Stability F/F FOSC(1.6V) - FOSC(1.3V) Unit 60 mA mA 12 % FOSC(1.3V) 1 FORTECH ELECTRONICS COMPONENT FT66T-xx SIMPLE MELODY GENERATOR TO-92 ONE SHOT OR LAVEL HOLD MODE CAN BE PROGRAMMED BY MASK OPTION ONE SHOT FT66T-XXS PIEZO + - 1.5 or 3.0V V DD V SS - + LEVEL HOLD FT66T-XXL PIEZO + - 1.5 or 3.0V V DD V SS - + PIN CONFIGURATION FT66T Vss Vcc Out 2 FORTECH ELECTRONICS COMPONENT