EM78P156K数据手册Elan中文资料规格书

描述 Description

The EM78P156K is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. It has an on-chip 1k 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 device provides a convenient way of developing and verifying user's programs. Moreover, this OTP devices offer 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
• 1K x 13 bits on-chip ROM
• 48 bytes on-chip registers (SRAM, general purpose)
• 5-level stacks for subroutine nesting
• 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 1 μA during Sleep mode

I/O Port Configuration
• 2 bidirectional I/O ports: P5, P6
• 12 I/O pins
• Wake-up port: P6
• 7 programmable pull-down I/O pins
• 8 programmable pull-high I/O pins
• 8 programmable open-drain I/O pins
• 2 programmable R-option pins
• External interrupt: P60

Operating Voltage 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~20MHz/2clks@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

Peripheral Configuration
• 8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt
• 2/4 clocks per instruction cycle selected by code option
• High EFT immunity

Three Available Interrupts
• TCC overflow interrupt
• Input-port status changed interrupt (wake-up from sleep mode)
• External interrupt

Special Features
• Programmable free running watchdog timer
• Power saving Sleep mode
• Selectable Oscillation mode