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SM1350AAQM Datasheet(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM1350AAQM Datasheet(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 16 page SM1350AAQM High Tone Quality Melody IC SEIKO NPC CORPORATION - 1 OVERVIEW The SM1350AAQM is single-chip high tone quality melody IC, fabricated using NPC’s Molybdenum-gate CMOS process. Melodies are selected in serial or binary (parallel) mode, 6 programmable melodies are stored, and the high tone quality melody is output by how to specify the user. It is making this IC ideal for mechanical clocks and similar applications where high tone quality output is demanded. FEATURES PINOUT ■ Basic Functions (Top view) • 4.0MHz oscillator frequency • Power-save function - Oscillator stopped when no output - S0 to S3, MODE, LH pull-up resistors open • A-class output • Chattering prevention circuit (STN, STOP, S0 to S3) • 10-bit D/A converter current-summing ■ Sound Generator Functions • DWS (dual wave synthesis) sound generators • 4 simultaneous sounds for 4 tones ■ Melody Functions • 6 programmable melodies • Level hold/one-shot melody modes • Serial/binary (parallel) select modes PACKAGE DIMENSIONS ■ Control Signal Outputs (Unit : mm) VDD S0 S1 S2 S3 MODE LH STOP STN BUSYN CT ICN XT XTN TO T3N T2N T1N ENDN EBUSYIN SP SPN VOL VSS 1 12 13 24 • BUSYN signal : LOW during melody output • CT signal : pulse output synchronizing with selected notes or rests ■ 2.4 to 5.5V supply voltage ■ Molybdenum-gate CMOS ■ Package : 24-pin SSOP ORDERING INFOMATION Device Package SM1350AAQM 24 pin SSOP |
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