GPL81408A数据手册Generalplus中文资料规格书

描述 Description

The GPL81408A, an 8-bit CMOS single chip microprocessor, contains RAM, ROM, I/Os, interrupt/wakeup controller, timer, 8-bit PWM audio output and automatic display controller/ driver for LCD.  With a dual channel PWM driver, attractive sound effects can be generated easily.  Furthermore, a software controllable standby mode is also implemented for power saving.

特性 Features

• Built-in 8-bit CPU
• 160 bytes SRAM
• 64K bytes ROM
• CPU clock: 2.0MHz @ 2.0V – 5.5V
• Programmable CPU clock frequency, 1/2, 1/4, 1/8, 1/16, 1/32 or 1/64 of Internal R-oscillator’s clock frequency is available.
• Provides 7 interrupt sources

• Built-in 8-bit 1-channel PWM outputs
• Built-in 32.768KHz Crystal / R-oscillator
• Crystal or R-oscillator (mask option)
• Crystal oscillator switches from strong to Weak mode automatically
• Internal time base generator

• Built-in System R-oscillator
• No resistor is needed

• One 16-bit timer/counters
• Low Voltage Reset
• Provides 1.9V low voltage reset function

• Low power consumption
• Operating current: 500uA/1.0MHz @ 3.0V
• Very low standby current : ISTBY < 1.0µA @ 3.0V

In standby mode: stop all oscillators
• 16 general purpose I/O
• SEG[33] can be optioned to IOAB[3]
• 8 IO pins IOEF[7:0] support Key wake-up mode

• LCD controller / driver
• 34 segments x 5 commons, max. 170 dots
• LCD bias: 1/3
• LCD duty: 1/3,1/4,1/5