EM78P372N数据手册Elan中文资料规格书

描述 Description

The EM78P372N is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. The device has an on-chip 2k x 13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). It provides a protection bit to prevent intrusion of user’s OTP memory code. Three Code Option words are also available to meet user’s requirements. With its enhanced OTP-ROM features, the EM78P372N provides a convenient way of developing and verifying user’s programs. Moreover, this OTP device offers the advantages of easy and effective program updates, using development and programming tools. User can avail of the ELAN Writer to easily program his development code.

特性 Features

CPU Configuration
• 2K x 13 bits on-chip ROM
• 80 bytes on-chip registers (SRAM)
• 8-level stacks for subroutine nesting
• 4 programmable level voltage detector (LVD): 4.5V, 4.0V, 3.3V, 2.2V
• 3 programmable level voltage reset (LVR): 4.0V, 3.5V, 2.7V
• Less than 1.5 mA at 5V/4MHz
• Typically 15 μA at 3V/32kHz
• Typically 2 μA during Sleep mode

I/O Port Configuration
• 3 bidirectional I/O ports: P5, P6, P7
• 18 I/O pins
• Wake-up port: P5
• 8 programmable pull-down I/O pins
• 16 programmable pull-high I/O pins
• 8 programmable open-drain I/O pins
• 14 programmable high-sink current I/O pins
• External interrupt: P60

Operating Voltage and Temperature Range
• 2.1V~5.5V at 0°C~70°C (Commercial Grade)
• 2.3V~5.5V at -40°C~85°C (Industrial Grade)

Operating Frequency Range
• Crystal Mode: DC~16MHz/2clks@4.5V; DC~8MHz/2clks@3V; DC~4MHz/2clks@2.1V
• ERC Mode: DC~2MHz/2clks@2.1V
• IRC Mode: 1MHz, 4MHz, 8MHz, 16MHz ±2%@25°C, 5V

Fast set-up time requires only 800ms (VDD:5V, Crystal: 4MHz, C1/C2: 15pF) in XT mode and 10ms in IRC mode (VDD:5V IRC:4MHz)

Eight Available Interrupts
• TCC overflow interrupt
• Input-port status changed interrupt (wake-up from sleep mode)
• External interrupt
• ADC completion interrupt
• Comparator output change interrupt
• Low voltage detect (LVD) interrupt
• PWM period match interrupt
• PWM duty match interrupt