EM78P458数据手册Elan中文资料规格书

描述 Description

The EM78P458 / EM78P459 are 8-bit microprocessors designed and developed with low-power and high-speed CMOS technology. It is equipped with a 4k x 13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). With its OTP-ROM feature, it is able to offer a convenient way of developing and verifying user’s programs. Moreover, user can take advantage of the EMC Writer to easily program his development code.

特性 Features

• Operating voltage range: 2.3V~5.5V
• Operating temperature range: 0°C~70°C
• Crystal mode: DC~20MHz/2clks@5V; DC~8MHz/2clks@3V
• RC mode: DC~4MHz/2clks@3V
• Less than 1.5 mA at 5V/4MHz
• Typically 15 µA at 3V/32KHz
• Typically 1 µA during sleep mode
• 4K x 13 bits on chip ROM
• 84 bytes on chip registers (SRAM)
• 2 bi-directional I/O ports
• 8 level stacks for subroutine nesting
• 8-bit real time clock/counter (TCC) with selective signal sources, trigger edges and overflow interrupt
• 8-bit multichannel Analog-to-Digital Converter with 8-bit resolution
• Dual Pulse Width Modulation (PWM) with 10-bit resolution
• One pair of comparators
• Power-down (Sleep) mode
• Six available interruptions: TCC overflow, Input-port status changed interrupt (wake up from the sleep mode), external interrupt, ADC completion, PWM period match completion and comparator high interrupt
• Programmable free running watchdog timer
• 8 Programmable pull-down I/O pins
• 7 programmable pull-high I/O pins
• 8 programmable open-drain I/O pins
• Two clocks per instruction cycle