The EM78P259N is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS
technology. The device has an on-chip 2K×13-bit Electrical One Time Programmable Read Only Memory
(OTP-ROM). It provides a protection bit to prevent intrusion of user’s code. Three Code option words are
also available to meet user’s requirements.
With its enhanced OTP-ROM feature, the EM78P259N 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.
14-lead packages : EM78P153S Operating voltage range : 2.3V~5.5V Available in temperature range: 0C~70C Operating frequency range (base on 2 clocks):* Crystal mode: DC~20MHz at 5V, DC~8MHz at 3V, DC~4MHz at 2.3V.* ERC mode: DC~4MHz at 5V, DC~4MHz at 3V, DC~4MHz at 2.3V. Low power consumption:* less then 1.5 mA at 5V/4MHz* typical of 15 µA, at 3V/32KHz* typical of 1µA, during the sleep mode 1024 x 13 bits on chip ROM Built-in calibrated IRC oscillators (8MHz, 4MHz, 1MHz, 455KHz ) Programmable prescaler of oscillator set-up time One security register to prevent the code in the OTP memory from intruding One configuration register to match the userˇs requirements 32⊙ 8 bits on chip registers (SRAM, general purpose register) 2 bi-directional I/O ports 5 level stacks for subroutine nesting 8-bit real time clock/counter (TCC) with selective signal sources and trigger edges, and with overflow interrupt Power down mode (SLEEP mode) Three available interrupt...
1 概括描述 AT8PS56是一款采用低功耗、高速CMOS工艺设计开发的8位高性能精简指令集单片机。专为经济型多输入输出控制的产品设计,其内部有1K×13位可一次编程的ROM (OTP-ROM)。它提供6个选择位以满足用户的需要,其中的保护位可以防止OTP-ROM中的用户程序被读取。 由于具有OTP-ROM,用户可以用AT8PS56方?地开发和校验自己的程序,并能使用AT8PS56将程序代码写入芯片。 2 性能特点 ●工作电压范围:2.0V~5.5V ●工作温?范围:0°C~70°C ●工作频?范围(基于2个clocks ): *晶振模式:DC~20MHz(5V),DC~8MHz(3V),DC~4MHz(2.3V) * ERC模式:DC~20MHz(5V) ●低功耗: * 5V/4MHz工作条件下电?小于2.0 mA * 3V/32KHz工作条件下电?典型值为15 µA *睡眠模式下电?典型值小于1 µA ●1024 × 13程序存储器ROM ●一个安全寄存器保证程序?被读出 ●一个配置寄存器满足用户要求 ●49× 8位片内寄存器(SRAM通用寄存器) ●2组双向独立I/O端口(16I/O PINS) ●5级堆栈 ●8位定时器/计数器(TCC),可由软件选择其信号源、触发沿和溢出是否中断 ●...