TECHNICAL DATA BT8031-XX FEATURES FUNCTIONS • 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 • 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 PIN CONFIGURATION 5 MO 01 For Elise 02 Ding - Dong 03 Westminster 04 One Ding - Dong 05 It’s Small World BT8031-XX 6 V CC 1 VSS MT 4 OSC TEST 2 3 V SS V CC MO CHIP TO-92 ELECTRICAL CHARACTERISTICS (VCC = 3V, VSS = 0V, Ta = 25oC; Characteristic Operating Voltage Supply Current Stand-by* Operating Output Drive Current Output Sink Current Input Current MT Frequency Stability Symbol VCC IS ICC IOH IOL II ∆F/F Test Condition Output open VCC =3V, VO =0.8V VCC =3V, VO =0.5V VIN = VCC FOSC(3V) - FOSC(2V) FOSC(3V) unless otherwise specified) Min Typ Max Unit 2.0 3.0 0.6 0.5 0.5 5.0 5 1 V A mA mA mA A % 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 BT8031-XX + - MO Speaker R 6 V CC + 8Ω - V SS 3V 3V 1 VSS MT 4 OSC TEST 2 3 R = 5 ÷ 10kΩ NOTE: The chip substrate is connected to VSS. N SUFFIX PLASTIC DIP (MS – 001BA) A Dimension, mm 5 8 B 1 4 MIN MAX A 8.51 10.16 B 6.1 7.11 5.33 C L F Symbol C D 0.36 0.56 F 1.14 1.78 -T- SEATING PLANE N G K D 0.25 (0.010) M M H J T NOTES: 1. Dimensions “A”, “B” do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side. G 2.54 H 7.62 J 0° 10° K 2.92 3.81 L 7.62 8.26 M 0.2 0.36 N 0.38 2 BT8031-xx • TO-92 3