aP89341/170/085 series high performance Voice OTP is fabricated with Standard CMOS process with embedded 8M/4M/2M bits EPROM. It
can store to 341/170/85 sec voice message with 4-bit ADPCM compression at 6KHz sampling rate. 8-bit PCM is also available as user
selectable option. Three trigger modes, simple Key trigger mode, Parallel CPU trigger mode and CPU serial command mode, facilitate
different user interface. User selectable triggering and output signal options provide maximum flexibility to various
applications. Built-in resistor controlled oscillator, 8-bit current mode D/A output and PWM direct speaker driving output
minimize the number of external components. PC controlled programmer and developing software are available.
OTP Program Mode IO6 IO7 VSS VDD AVDD VPP ACLK AVSS SIO OEB DCLK PGM M0 IO0~IO5
Description Trigger pin (I/O pin with internal pull-down) Trigger pin (I/O pin with internal pull-down) Ground PWM output to drive
speaker directly PWM output to drive speaker directly Supply voltage Analog supply voltage Supply voltage for OTP programming
Oscillator input D/A current output Analog ground Programmable output (I/O pin) Programmable output (I/O pin) Programmable output
(I/O pin) Reset pin (input pin with internal pull-down) Trigger pin (I/O pin with internal pull-down) Mode select pin 1 (input
with internal pull-down) Mode select pin 0 (input with internal pull-down) Trigger input (I/O pin with internal pull-down)