-
深圳市微瑞微电子科技有限公司
主营：松翰单片机,飞凌单片机,合泰单片机,麦肯单片机,义隆单片机,中颖单片机 - 15338875957
深圳市微瑞微电子科技有限公司
主营：松翰单片机,飞凌单片机,合泰单片机,麦肯单片机,义隆单片机,中颖单片机
13
产品说明 General Description The EM78P806A is an 8-bit CID (Call Identification) RISC type microprocessor with low power , high speed CMOS technology . Integrated onto a single chip are on_chip watchdog (WDT) , RAM , ROM , programmable real time clock /counter , internal interrupt , power down mode , LCD driver , FSK decoder , DTMF receiver , Tone generator and tri-state I/O . The EM78P806A provides a single chip solution to design a CID of calling message display . Features CPU Operating voltage range : 2.5V～5.5V 8K x 13 on chip ROM 1.1K x 8 on chip RAM Up to 36 bi-directional tri-state I/O ports 8 level stack for subroutine nesting 8-bit real time clock/counter (TCC) with 8-bit prescaler Two sets of 8 bit counters can be interrupt sources Selective ** sources and overflow interrupt Programmable free running on chip watchdog timer 99.9% single instruction cycle commands four modes (Main clock 3.579 , 1.79, 0.895 or 0.447MHz generated by internal PLL) * Sleep mode : CPU and Main clock turn off, 32.768KHz clock turn off * Idle mode : CPU and Main clock turn off, 32.768KHz clock turn on * Green mode : Main clock turn off, CPU and 32.768KHz clock turn on * Normal mode : Main clock turn on , CPU and 32.768KHz clock turn on Ring on voltage detector and low battery detector (2.5V or 3.5V) Input port wake up function 9 interrupt source , 4 external , 5 internal 100 pin QFP(EM78P806AAQ, POVD disable)(EM78P806ABQ, POVD enable) or 80 pin chip form (EM78P806AH) IO Port key scan function IO Port interrupt , pull high ,wake-up and open drain functions External Sub-Clock frequency is 32.768KHz Dual TONE Generators CID Operation Volltage 2.5 ～5.5V for FSK Operation Volltage 2.5 ～5.5V for DTMF receiver Bell 202 , V.23 FSK demodulator DTMF receiver Ring detector on chip Line energy detect LCD LCD operation voltage chosen by software Common driver pins : 16 (8 of 16 Common shared by I/O) Segment driver pins : 40 (20 of 40 Segment shared by I/O) 1/4 bias 1/8,1/16 duty Applications adjunct units answering machines feature phones 如需要时请联系， 彭小姐? 或者QQ咨询：765165373