EM78P806A数据手册Elan中文资料规格书

描述 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.

特性 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 signal 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
• 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 2.5V~5.5V for FSK
• Operation Volltage 2.5V~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

Die Form
• Available, Please contact Elan Sales