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 PIN CONFIGURATION 01 02 03 04 05 For Elise Ding - Dong 6 V CC BT8031- X X Westminster One Ding - Dong 1 VSS It’s Small World MT 4 OSC TEST 23 V SS V CC MO CHIP TO-92 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 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 BT8031-xx APPLICATION CIRCUITS LEVEL HOLD MODE (TO-92) ONE SHOT MODE (BARE CHIP) 5 MO R V CC + 3V BT8031- X X V SS MO R Speak er 8Ω + 3V 1 VSS 6 V CC MT 4 OSC TEST 23 R = 5 ÷ 10kΩ NOTE: The chip substrate is connected to VSS. N S UFFIX PLAS TIC DIP (MS – 0 0 1BA) A 8 5 B 1 4 Dimens ion, mm Symbol A B MIN 8.51 6.1 MAX 10.16 7.11 5.33 0.36 1.14 2.54 7.62 0° 2.92 7.62 0.2 0.38 10° 3.81 8.26 0.36 0.56 1.78 F L C D C -T- SEATING PL AN E F G M H J N G D 0.25 (0.010) M T K H J K L M N NOTES : 1. Dimen s io n s “A ”, “B” d o n o t in clu d e mo ld flas h o r p ro tru s io n s . Maximu m mo ld flas h o r p ro tru s io n s 0.25 mm (0.010) p er s id e. 2 BT8031-xx • T O- 92 3