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OTP Function Comparison Table

 aP89341 aP89341KaP23341aP23341
PackageDIP24/SOP28 DIP16, SOP16DIP8, SOP8
VCC2.2~3.6V2~5V
Writer program time180 sec blank check 35" + verify 35" + program 35"
Copier program time180 sec 35 sec
ResetYN
RoscEXT-Rosc EXT-Rosc, adjusted INT-Rosc, CrystalINT-Rosc
Frequency Stability-5~+5%-1.5%~+1.5%
Volume ControlNoKey(Up & Down) CPU commandCPU command
Volume LevelsNo16
LVRNoYes
Output Pin31
Outside ComponentRx1 Cx2104
Compressing rate8 bit/4 bit16 bit/8 bit/4 bit
PWM Audio-out7bit14 bit
DAC Audio-out8 bit16 bit
PWM Volume110mA 150mA @3.3V, 220mA @4.5V
SpeakerPWM or DACPWM & DAC
Trigger mode
Key mode32(8tg+sbt) 57(8tg+sbt)13(4tg+sbt) 7(2tg+sbt)
SBT Sequential2541024
CPU Parallel mode254256 164
MP3 modeN1024Y
Power on Play modeNY
CPU Serial mode256 aP89341 (256), SPI(1024), I2C(1024)I2C(1024), SPI(1024)
OSxPxP, Win 7 Win8,8.1
Accept WAV file from 5~48K


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    Tech Notes
  • FAQ
  • PCM vs ADPCM
  • Sampling rate
  • Triggers Mechanism
  • Triggers Options
  • Rec vs OTP vs MTP
  • APR2060 ROSC value
  • OTP Comparison

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