描述 Description

GPC71P170B, a 4-bit sound controller, is architected with a one-channel SPU for MIDI playback, a 4-bit RISC CPU, a 14-bit PWM, 8 IOs, 1 input (with pull low resistor ), 256-nibble RAM, and OTP with density of 64K/ 32K x 12-bit of memory space. The operating voltage ranges from 2.0V through 5.5V and operating speed is 1M/2MHz, configurable through inner oscillator. Other features include Low Voltage Reset, IR carry output, watchdog, five interrupt sources with two time-bases, etc.

特性 Features

? 4-bit RISC CPU
? CPU Clock: 1M/2M Hz, System clock: 8MHz
? Operating Voltage: 2.0V - 5.5V
? Regulator built-in with input voltage: 2.0~5.5V, output voltage: 2.0~3.0V
? IO: IOA~IOB, IOH3 Operating Voltage: 2.0V - 5.5V
? 256 nibbles SRAM
? 14-bit PWM driver for driving speaker directly
? 64K/32Kx12-bit OTP
? Standby mode for power savings
? Five interrupt sources with two time-bases
? One-channel Sound Processing Unit (SPU) supports MIDI playback
? 8 general IOs (bit programmable), 1 input pin with pull low resistor
? Key wakeup function
? Low voltage reset
? Watchdog
? Low Voltage Detection
7-level (2.2V/ 2.4V/ 2.6V/ 2.8V/ 3.0V/ 3.3/ 3.6V) voltage detector