GPLB38B中文资料LCD Controller with 512KB ROM数据手册Generalplus规格书

描述 Description

The GPLB38B, an 8-bit CMOS microprocessor, contains 1216 bytes working RAM, 512K bytes ROM, 12 I/Os, interrupt/wakeup controller, and automatic display controller/driver for LCD. It also features one PWM driver with two audio channels to produce attractive sound effects easily. Its large ROM area can be used to store both program and audio data. Furthermore, a SLEEP (power-down) function is also built in to extend power life. The GPLB38B is designed with GENERALPLUS state-of-the-art technology to fulfill LCD application needs, especially for hand-held products.

特性 Features

• Built in 8-bit processor
• 1216 bytes SRAM
• 512K bytes ROM
• Max. operating speed: 8.0MHz @ 2.4V - 3.6V
• Programmable CPU clock: /1, /2, /4, /8, /16, /32, /64 of ROSC Frequency.
• 5 wake-up sources
• 5 interrupt sources

• Key scan function
• SEG[15:0] can be used to send key scan output

• Programmable LCD driver
• 64 segments, 16 commons, maximum 1024 dots
• 1/5 bias; 1/16 duty capability
• 128 bytes dedicated LCD RAM
• Built-in voltage regulator to generate VLCD for LCD driver
• 27-level contrast control (2.98V - 5.75V, in 1/5 bias)

• Power saving SLEEP mode
• Low Voltage Detector
• 6-level 2.9V - 2.4V detection
• 2.2V Low voltage reset

• Low power consumption:
• 1.2mA typical @ 3.0V, FCPU = 2.0MHz, FOSC = 8.0MHz
• 30μA typical halt current @ 3.0V
• <1μA typical standby current @ 3.0V

• Peripherals
• Dedicated I/Os: PA[0:7], PC[4:7]
• 32.768KHz oscillator circuit for RTC
• RC-oscillator (only one resistor is needed)
• Two 16-bit reloadable timer/counters
• 2-channel PWM audio outputs
• Watchdog Timer for reliable operation

• Wide operating voltage range:
• 2.4V - 3.6V