描述 Description

GPLB25B, an 8-bit CMOS microcontroller with advanced processing technology and mechanism by Generalplus, integrates many features in a compact package, including SRAM, ROM, I/Os, an interrupt controller, a timer and a LCD controller/driver.? The amount of 46K bytes of ROM is able to offer sufficient space for LCD graphical data.? The 2176-bytes of SRAM are all available to users.? In addition, 14 I/Os, timer, LCD driver, NMI controller, Watchdog Timer, Low Voltage Power Down and other features increase the capability of driving sophisticated functions and displaying crispy LCD graphics.? The GPLB25B is a high-end microcontroller that filled with modern technology and strong backup from Generalplus.? Obviously, it is one of the most suitable products for your LCD products.

特性 Features

? Built-in 8-bit CPU (CPU15)
? 46K bytes ROM
? 128 bytes SRAM for CPU working space
? 2K bytes SRAM for data
? Max. operating speed:3.0MHz @ 2.4V

? NMI controller
? 2Hz for Real Time Clock (RTC)
? 128Hz
? Key(PA7 - 0)
? Counter overflow

? Programmable LCD driver
? Up to 60 segments, up to 11 commons, maximum 660 dots
? 1/4, 1/5 bias capability
? 1/4, 1/5, 1/6, 1/8, 1/9, 1/10, 1/11 duty
? 88 bytes dedicated LCD RAM
? Fixed LCD COM/SEG driving strength
? 16-level VLCD adjustable

? Low Voltage Reset Level is 2.2V and can be disabled by mask ??Option
? Low Voltage Detecting Level is 2.4V and can be disabled by mask option
? Low Voltage Power Down and is controlled by register
? Wide operating voltage:
? 2.4V – 3.6V @ 3.0MHz

? Power saving SLEEP mode
? Serial SRAM interface
? Power consumption:
? 1.3mA typical @ 3.0V, FCPU = 3.0MHz
? <1.0uA typical standby current @ 3.6V

? Peripherals
? 14 I/O ports (PA7 - 0, PB1 - 0, PC3 - 0)
? Built-in RC-oscillator (only one resistor is needed)
? Built-in 32.768KHz crystal oscillator for real time clock? function
? 8-bit reloadable timer/counter with pre-scalar
? Watchdog Timer for reliable operation