BT8031

TECHNICAL DATA BT8031-XX FEATURES 127-note ROM memory 2.0V to 5.0V power supply and low power consumption RC oscillator on chip One shot or level hold mode (mask option) Sound range: 2.5 octaves, 2 series Tempo: 16 kinds (presto-largo) Double sound sources Digital Envelope Effect FUNCTIONS Dynamic speaker can be driven with external NPN transistor Power on reset; melody begins from the first note Start from the head of melody Bare chip or TO-92 are available DESCRIPTION The BT8031-XX is a CMOS LSI chip, which plays a prearranged melodies. The ROM has a 127 words and can store up to two melodies with double sound sources, and it uses the built-in digital envelope circuit. SONG LIST 5 MO 01 02 03 04 05 For Elise Ding - Dong Westminster One Ding - Dong It’s Small World ELECTRICAL CHARACTERISTICS (VCC = 3V, VSS = 0V, Ta = 25oC; Characteristic Operating Voltage Supply Current Output Drive Current Output Sink Current Input Current MT Frequency Stability Stand-by* Operating Symbol VCC IS ICC IOH IOL II ∆F/F Test Condition w w w t a .D CHIP 6 V CC S a e h MT 4 U 4 t e .c m o PIN CONFIGURATION BT8031-XX 1 VSS OSC TEST 2 3 V SS V CC MO TO-92 unless otherwise specified) Min 2.0 Typ 3.0 0.6 0.5 0.5 Max 5.0 5 1 Unit V 　A mA mA mA 　A % Output open VCC =3V, VO =0.8V VCC =3V, VO =0.5V VIN = VCC FOSC(3V) - FOSC(2V) FOSC(3V) 0.5 0.5 0.5 3.0 15 * Only for version “ONE SHOT MODE” 1 www.DataSheet4U.com BT8031-xx APPLICATION CIRCUITS LEVEL H...