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EM78P258NN 参数 Datasheet PDF下载

EM78P258NN图片预览
型号: EM78P258NN
PDF下载: 下载PDF文件 查看货源
内容描述: 8位OTP微 [8-Bit Microprocessor with OTP ROM]
分类和应用: 外围集成电路光电二极管微控制器局域网可编程只读存储器OTP只读存储器
文件页数/大小: 81 页 / 2048 K
品牌: ELAN [ ELAN MICROELECTRONICS CORP ]
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EM78P258N  
8-Bit Microprocessor with OTP ROM  
1 General Description  
EM78P258N are 8-bit microprocessors designed and developed with low-power and  
high-speed CMOS technology. It is equipped with a 2K*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 your programs. Moreover, it  
provides a protect bit to guard against code intrusion, as well as 3 Code Option words  
to accommodate your requirements. Furthermore you can take advantage of ELAN  
Writer to easily write your development code into the EM78P258N.  
2 Features  
Operating voltage range:2.3V~5.5V base on 0°C ~ 70°C (commercial)  
2.5V~5.5V base on –40°C ~ 85°C (industrial)  
Operating frequency range (base on 2 clocks):  
Crystal mode:DC ~ 20MHz/2clks, 5V; DC ~ 8MHz/2clks, 3V  
RC mode: DC ~ 4MHz/2clks, 5V; DC ~ 4MHz/2clks, 3V  
Low power consumption:  
Less than 1.9 mA at 5V/4MHz  
Typically 15 µA, at 3V/32KHz  
Typically 1 µA, during sleep mode  
Built-in RC oscillator 4MHz, 8MHz,1MHz, 455KHz (auto calibration)  
Programmable WDT time (4.5ms:18ms)  
Independent Programmable prescaler of WDT  
One configuration register to match your requirements, and user’s ID code for  
customer use is provided  
80× 8 on chip registers (SRAM, general purpose register)  
2K × 13 on chip ROM  
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 real time clock/counter (TCCA, TCCC) and 16-bit real time clock/counter  
(TCCB) with selective signal sources, trigger edges, and overflow interrupt  
4-bit multi-channel Analog-to-Digital Converter with 12-bit resolution  
Easy-implemented IR (Infrared remote control) application circuit  
Product Specification (V1.0) 06.16.2005  
1  
(This specification is subject to change without further notice)