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AP89021 Datasheet(PDF) 4 Page - Aplus Intergrated Circuits |
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AP89021 Datasheet(HTML) 4 Page - Aplus Intergrated Circuits |
4 / 18 page Integrated Circuits Inc. aP89021/010 Ver 4.0 Aug 23, 2010 4 PIN DESCRIPTIONS S1 ~ S4 Input Trigger Pins: - S1 to S4 are used to trigger the 12 Voice Groups in both Key and CPU Parallel Trigger Mode. - In OTP Programming Mode, S1 to S4 are used as program enable pins. SBT Input Trigger Pin: - In Key Trigger Mode, this pin is trigger pin to trigger the playback of Voice Groups one by one sequentially. - In CPU Parallel Command Mode, this pin is used as address strobe to latch the input from S1 to S4 and starts the voice playback. - In OTP Programming Mode, this pin is used as PGM signal. VDD Power Supply Pin. VSS Power Ground Pin VOUT1 and VOUT2 Digital PWM output pins which can drive speaker and buzzer directly for voice playback. OSC During voice playback, an external resistor is connected between this pin and the VDD pin to set the sampling frequency. In OTP Programming Mode, this is the ACLK input signal. VPP Connection to VDD is required during voice playback. In OTP Programming Mode, this pin is connected to a separate 6.5V power supply. OUT1, OUT2 and OUT3 - In Key Trigger Mode and CPU Parallel Command Mode, these pins are user programmable pins for the STOP pulse, BUSY and LED signals. - During OTP programming, OUT1 serves as OEB while OUT2 serves as data IO. COUT Analog 8-bit current mode D/A output for voice playback RST Chip reset in playback mode or DCLK pin in OTP programming mode. |
Similar Part No. - AP89021_15 |
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Similar Description - AP89021_15 |
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