產(chǎn)品說(shuō)明 
General Description 
EM78P447N is an 8-bit microprocessor with low-power and high-speed CMOS technology and high noise immunity. It has a built-in 4K x 13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). It provides three protection bits to prevent intrusion of user's OTP memory code. Seven option bits are also available to meet user's requirements. 

With its enhanced OTP-ROM features, the EM78P447N 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. 

Features 
Operating voltage: 2.5V ~ 5.5V 
Operating temperature: -40°C ~ 85°C 
Operating frequency range (base on 2 clocks) 
* Crystal mode: DC ~ 20MHz at 5V, DC ~ 8MHz at 3V, DC ~ 4MHz at 2.5V 
* RC mode: DC ~ 4MHz at 5V, DC ~ 4MHz at 3V, DC ~ 4MHz at 2.5V 
Low power consumption: 
* Less than 2.2 mA at 5V/4MHz 
* 35 μA Typical at 3V/32KHz 
* 2 μA Typical, during sleep mode 
4K x 13 bits on-chip ROM 
One security register to prevent intrusion of OTP memory codes 
One configuration register to accommodate user's requirements 
148 x 8 bits on-chip registers (SRAM, general purpose register) 
3 bidirectional I/O ports 
5-level stacks for subroutine nesting 
8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt 
Two clocks per instruction cycle 
Power down (Sleep) mode 
Two available interrupts 
* TCC overflow interrupt 
* External interrupt 
Programmable free running watchdog timer 
10 programmable pull-high pins 
2 programmable open-drain pins 
2 programmable R-option pins 
Package types: 
* 24-pin Skinny DIP 300 mil : EM78P447NCK 
* 24-pin SOP 300 mil : EM78P447NCM 
* 28-pin DIP 600 mil : EM78P447NAP 
* 28-pin DIP 600 mil : EM78P447NEP 
* 28-pin Skinny DIP 400 mil : EM78P447NGK 
* 28-pin SOP 300 mil : EM78P447NAM 
* 28-pin SSOP 209 mil : EM78P447NAS 
* 32-pin DIP 600 mil : EM78P447NBP 
* 32-pin SOP 450 mil : EM78P447NBWM 
* 32-pin SOP 300 mil : EM78P447NBM 
* 32-pin Skinny DIP 400 mil : EM78P447NBK 
Single instruction cycle commands 
Transient point of system frequency between HXT and LXT is 400KHz 

如需要時(shí)請(qǐng)聯(lián)系， 彭小姐 或者QQ咨詢：765165373

深圳市微瑞微電子科技有限公司是一家專注于代理義隆、合泰、松翰、佑華、微芯、麥肯、飛凌、遠(yuǎn)翔、SPANSION等知名品牌單片機(jī)（MCU），語(yǔ)音、錄音IC、FIASH閃存。及無(wú)線高頻（RF）模塊，產(chǎn)品設(shè)計(jì)研發(fā)、生產(chǎn)、銷售為一體的專業(yè)開(kāi)發(fā)公司。
在半導(dǎo)體領(lǐng)域, 微瑞微電子科技有限公司是你最好的選擇,并愿意成為你的專業(yè)消費(fèi)IC供應(yīng)者以及應(yīng)用的設(shè)計(jì)公司. 我們的產(chǎn)品包括與語(yǔ)音/音樂(lè)IC,多點(diǎn)數(shù)LCD 驅(qū)動(dòng)語(yǔ)音/音樂(lè)IC,DSP高容量語(yǔ)音IC,多通道音樂(lè)IC,多點(diǎn)數(shù)LCD片一起的8-BIT單芯片microcontroller的通用控制器,微瑞微電子科技在使用消費(fèi)產(chǎn)品過(guò)程中的4位/8位微控制人員的應(yīng)用開(kāi)發(fā)區(qū)域內(nèi)專業(yè)化.
Spansion是全球最大的專門提供閃存解決方案的公司。我們的目標(biāo)是通過(guò)增值解決方案重新定義NOR閃存行業(yè)，進(jìn)而真正影響客戶的創(chuàng)新能力，加速豐富數(shù)字內(nèi)容在全球的推廣和普及，微瑞微電子科技借憑多年的銷售渠道，銷售人員的努力，才取得與Spansion公司香港分公司合作。微瑞微電子科技承諾：服務(wù)，價(jià)格，質(zhì)量，爭(zhēng)創(chuàng)同行業(yè)帶頭兵。
公司擁有一批本行業(yè)多年經(jīng)驗(yàn)技術(shù)精英和銷售團(tuán)隊(duì)，擁有包括邦定機(jī),貼片機(jī)等全自動(dòng)化SMT流水線設(shè)備的大型生產(chǎn)加工基地.公司工程設(shè)計(jì)人員涵蓋了電子技術(shù)、自動(dòng)控制、計(jì)算機(jī)應(yīng)用及通信等專業(yè)，從硬件開(kāi)發(fā)、設(shè)計(jì)、工藝、軟件開(kāi)發(fā)，到硬件測(cè)試、軟件測(cè)試，都具備規(guī)范化管理。擁有獨(dú)立的研發(fā)中心，完善的售后服務(wù)網(wǎng)絡(luò)； 我們依靠強(qiáng)大的技術(shù)資源，專業(yè)化的管理和技術(shù)研發(fā)隊(duì)伍，完善的供銷渠道，強(qiáng)大的市場(chǎng)支持和卓越的售前售后服務(wù)，秉承公開(kāi)、合作、共贏的原則，為客戶提供優(yōu)質(zhì)、高效的智能防盜報(bào)警系統(tǒng)、應(yīng)用服務(wù)解決方案和技術(shù)支持。其產(chǎn)品廣泛應(yīng)用于家庭、小區(qū)物業(yè)、電力、交通、石油、化工、煤炭、鐵道、市政、公安等部門行業(yè)的安防裝置、數(shù)據(jù)監(jiān)測(cè)以及遠(yuǎn)程監(jiān)控系統(tǒng)。我們的產(chǎn)品種類繁多,例如玩具、禮品兒童教育計(jì)算機(jī)、電話來(lái)電音樂(lè)、電子琴、家電控制、按摩器、互動(dòng)玩具、教學(xué)玩具等...
我們始終堅(jiān)持"客戶致上，質(zhì)量第一"的經(jīng)營(yíng)方針竭誠(chéng)為國(guó)內(nèi)外新老客戶服務(wù)。