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BT8028-XX Datasheet(PDF) 1 Page - Integral Corp. |
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BT8028-XX Datasheet(HTML) 1 Page - Integral Corp. |
1 / 6 page TECHNICAL DATA SIMPLE MELODY GENERATOR BT8028-XX FEATURES • 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 FUNCTIONS • 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 or TO-92 are available BT8028C- XXL(S) OUT VCC VSS DESCRIPTION The BT8028 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 Value Unit DC Supply Voltage VCC – VSS -0.3 ~ 3.5 V Input Voltage VIN VSS – 0.3 ~ VCC – 0.3 V Operating Temperature Topr -20 ~ +65 oC Storage Temperature Tstg -55 ~ +125 oC ELECTRICAL CHARACTERISTICS (T a = 25 oC, V CC = 1.5V ; unless otherwise specified) Characteristic Symbol Test Condition Min Typ Max Unit Operating Voltage VCC 1.3 1.5 3.3 V Supply Current Stand-by IS 0.1 1 Operating ICC Output open 60 μA Output Drive Current IOH VCC =1.3V, VO =0.8V 0.6 1.5 mA Output Sink Current IOL VCC =1.3V, VO =0.5V 0.6 1.5 mA Frequency Stability ΔF/F FOSC(1.6V) - FOSC(1.3V) 12 % FOSC(1.3V) 1 |
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