APE0508

Features:

(1) Single power supply can operate from 2.4V to 5.5V at 4MHz or 8MHz.
(2) Program ROM: 16k x 10 bits
(3) 1 set of 15-bits DPR can access up to 64k x 10 bits melody data memory space, and 1 set of 18-bits VPR can access up to 256k x 10 bits
      voice data memory space.

Product	Voice Duration (sec)	Voice Pointer (VPR)	ROM Size (10-bit)
APE0508	5	14-bits	16k
APE1008	10	15-bits	32k
APE1508	15	16-bits	48k
APE2008	20	16-bits	64k
APE3108	31	17-bits	96k
APE4108	41	17-bits	128k
APE5208	53	18-bits	160k
APE6308	63	18-bits	192k

(4) Data Registers:
     a). 128 x 4-bits data RAM (00-7Fh)
       (APE0508 /1008 is 96 x 4-bits data RAM 00-5Fh)
     b). Unbanked special function registers (SFR) range: 00h-2Fh
(5) I/O Ports:
     a). PRA: 4-bits I/O Port A (10h) can be programmed to input/output individually. (Register control)
     b). PRB: 4-bits I/O Port B (13h) can be configured to input/output individually. (Mask option)
(6) On-chip clock generator: Resistive Clock Drive (RM)
(7) Timer: 1-set Voice Interrupt (Timer0: a 9-bits auto-reload timer/counter).
(8) Stack: 2-level subroutine nesting.
(9) Built-in 4 Level Volume Control can be programmed.
(10) Built-in 8 Level DAC current output can be configured. (Mask option)
(11) Built-in IR Carry Output: Port B[1] can be configured as IR pin by 38k / 56kHz. (Mask option)
(12) External Reset: Port B[3] can be configured as reset pin. (Mask opton)
(13) HALT and Release from HALT function to reduce power consumption
(14) Watch Dog Timer (WDT)
(15) Instruction: 1-cycle instruction except for table read and program branches which are 2-cycles
(16) Number of instruction: 27
(17) DAC: 1 channel voice and dual tone melody synthesizer (One 9-bits Cout or 8-bits PWM output).


Description

The APE0508 series are very low cost voice and melody synthesizer with 4-bits CPU. They have various features including 4-bits ALU, ROM, RAM, I/O ports, timers, clock generator, voice and melody synthesizer, and PWM (Direct drive) output, etc. The audio synthesizer contains one voice-channel and two melody-channels. Furthermore, they consist of 27 instructions in these devices. With CMOS technology and halt function can minimize power dissipation. Their architectures are similar to RISC, with two stages of instruction pipeline. APE0508 allow all instructions to be executed in a single cycle, except for program branches and data table read instructions (which need two instruction cycles).