CF1156 Datasheet | Nippon Precision Circuits

OVERVIEW The CF1156 series are CMOS melody LSIs with built-in LED driver that, together with a battery and piezoelectric buzzer, operate in one of 3 melody modes determined by input level or bonding options. They also feature an oscillator stop function in non-play mode and a variable pull-down resistance function that responds to input levels in order to reduce power consumption, reduce cost, and extend battery life, making them ideal in a wide range of applications including greeting cards and toys. FEATURES I I I I I I LED direct drive Requires few external ponents 2.0 to 3.6V wide operating voltage range Low power consumption 3 melody modes (bonding option) Oscillator stop function in non-play mode I I I I I I Power saving pull-down resistor built-in RC oscillator circuit Power-ON initialization function 2 VSS pad connections Wide pitch dynamic range (G3 to D7) Chip form PAD LAYOUT and COORDINATES (Unit: µm) . Number 1 Pad BO LO VDD TC T2 T1 VSS TO OSH LH VSS X 930 529 155 155 155 155 223 486 750 1041 1075 Y 1075 1075 1075 887 608 420 155 155 155 155 420 Data Shee (1230,1230) 2 3 4 5 TC T2 T1 HA1156 6 7 8 9 11 10 7 8 9 10 11 (0,0) VSS TO OSH Chip size: 1.23 × 1.23mm Chip thickness: 300 ± 30µm T1, T2, TC, and TO bonding is not required. ORDERING INFORMATION Device CF1156 Package Chip form . NIPPON PRECISION CIRCUITS INC.- 1 Data Sheet 4 U . .. CF1156 series PAD DESCRIPTION Name OSH, LH LO BO VDD VSS T1, T2, TC TO Function Melody mode control inputs. Built-in pull-down resistors mean LOW-level signals are obtained when inputs are open circuit. The resistance of the pull-down resistor varies with the applied voltage, as described in the Electrical Characteristics. LED drive output, HIGH level during non-play mode. Piezoelectric speaker driver output. LOW level output during non-play mode and during musical rest notes. HIGH level output during gaps between melody notes. Supply. The rear surface of the chip is...