描述 Description

GPLB21C is an 8-bit CMOS microprocessor with advanced processing technology and mechanisms by Generalplus.? It includes 2K-bytes working RAM, 22K-bytes ROM, 8 I/Os, an interrupt controller, a timer and a LCD controller/driver.? The 22K-byte ROM provides proper space for LCD graphic data.? The 256 bytes of CPU working SRAM is available to users for programming and data storage.? The GPLB21C is capable of driving sophisticated functions and displaying remarkable LCD graphics.? A Sleep (power-down) feature is also built-in to reduce power consumption.? The GPLB21C is a high-end micro-controller that includes, not only the latest technology, but also the full commitment and support of Generalplus.? Clearly the most suitable solution for your product needs.

特性 Features

? 8-bit CPU (CPU14B)
? 22K bytes ROM
? 40 bytes dual port SRAM for 38 x 8 LCD display buffer
? 128 bytes SRAM for CPU working space
? 256 bytes SRAM for data
? 8 I/O ports
? LCD controller/driver (1/4 bias, VOP = VDD, Type-B)
? 38 x 8 (304 dots)
? 38 x 6 (228 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
? Low Voltage Power Down (LVPD)
? Wide operating range: 2.4V - 3.6V @ 1.0MHz? ? ? ? ? ? ? ? ? ? ?????????? ????????? 3.6V - 5.5V @ 1.0MHz
? Power saving sleep mode