EM78P520N中文资料OTP LCD+ADC Type MCU Series数据手册Elan规格书

描述 Description

The EM78P520N is an 8-bit RISC type microprocessor designed and developed with low-power and high-speed CMOS technology. It has on-chip Watchdog Timer (WDT), LCD Data RAM, ROM, programmable real time clock counter, internal / external interrupt, power down mode, 12 bits A/D Converter, UART, SPI, 8-channel LED driver, LCD driver and tri-state I/O.

特性 Features

CPU Configuration
• 8K x 13 bits on-chip ROM
• 272 bytes on-chip registers (SRAM)
• 8-level stacks for subroutine nesting
• Dual clock operation or PLL operation mode
• 4 programmable level voltage detector (LVD): .3.9V, 3.3V, 2.7V, 2.4V
• 4 programmable level voltage reset (LVR): 3.9V, 3.3V, 2.6V, 2.1V (POR)
• Less than 2.1 mA at 5V/4MHz
• Typically 22 μA at 3V/32kHz
• Typically 8 μA during Sleep mode
• Single instruction cycle commands

I/O Port Configuration
• 6 bidirectional I/O ports: P7, P8, P9, PA, PB and PC
• 43 I/O pins
• 43 programmable pull-high I/O pins
• 39 programmable open-drain I/O pins
• 8-pin Direct Drive LED
• External interrupt: P74~P77, PB0~PB3, P82~P83

Operating Voltage and Temperature Range
• 2.3V~5.5V at -40°C~85°C (Industrial Grade)

Operating Frequency Range
• Crystal Mode: DC~20MHz/2 clks@5V; DC~8MHz/2 clks@3V; DC~4MHz/2 clks@2.3V
• ERC Mode: DC~2.2MHz/2 clks@2.3V
• PLL Mode: DC~16MHz/2 clks@2.3V
• Sub Clock: Crystal 32.768kHz , ERIC 33kHz (2.2MW)

Peripheral Configuration
• Serial peripheral interface (SPI) available
• 8-bit real time clock/counter (TCC)
• 12-channels Analog-to-Digital Converter with 12-bit resolution in Vref mode
• LCD: 8x23 dots, bias (1/2, 1/3, 1/4), duty (static, 1/3, 1/4, 1/8)
• Two 8-bit timers
• 8-bit Timer 1, auto reload counter/timer which can be an interrupt source. Function mode; Timer, Toggle output, UART baud rate generator, Capture, PWM
• 8-bit Timer 2, auto reload timer which can be aninterrupt source. Function mode; Timer, SPI baud rate generator, PWM
• Two sets of 8 bits auto reload counter/timer which can be cascaded to one 16-bit counter/timer
• Universal asynchronous receiver / transmitter (UART) available
• Four programmable watch timer: 1.0 sec, 0.5 sec, 0.25sec, 3.91ms
• Four programmable buzzer output: 0.5kHz, 1kHz, 2kHz, 4kHz

8 Interrupt Sources
• TCC overflow interrupt
• Ten external interrupts (wake-up from sleep mode)
• Two timer interrupts
• ADC completion interrupt
• Watch timer interrupt
• Two serial I/O interrupt
• Low voltage detect (LVD) interrupt

Special features
• Programmable free running watchdog timer
• Power down mode (Sleep mode)
• Selectable oscillation mode
• High EFT immunity
• High ESD immunity