描述 Description

GPLB20D3, an 8-bit CMOS microcontroller with advanced processing technology and mechanism by Generalplus, contains tons of functions in a compact package such as SRAM, ROM, I/Os, an interrupt controller, a timer and an LCD controller/driver. The amount of 30K bytes of ROM is able to provide proper space forLCD graphical data. The 2176 bytes of SRAM are totally free to users. In addition, 8 I/Os, timer, LCD driver, NMI controller, Watchdog Timer, Low Voltage Power Down and other features strengthen the capability of driving sophisticated functions and displaying remarkable LCD graphics.

特性 Features

? 8-bit CPU
? 30K bytes of ROM
? 60 * 8 dual port SRAM for LCD display buffer
? 128 bytes of SRAM for CPU working space
? 2K bytes of SRAM for data
? 8 I/O ports
? LCD controller/driver (1/4 bias, VOP= VDD, Type-B)
. 60 * 8 (480 dots). 60 * 6 (360 dots).48 * 8 (384 dots).48 * 6 (288 dots)
? Built-in R-oscillator and 32.768KHz crystal oscillator
? 8-bit Reloadable timer/counter with pre-scaler
? NMI controller with following sources
.2Hz for RTC.128Hz.Key (PA7-0).Counter overflow
? Halt and Standby mode
? Watchdog Timer (WDT)
? Low Voltage Power Down (LVPD)
? Wide operating range: 2.4V -3.6V @ 1.0MHz