參數(shù)資料
型號(hào): EM78810
廠商: ELAN Microelctronics Corp .
英文描述: 8-Bit Micro-Controller for Telecom Product(工作電壓2.5V-6V的8位呼叫識(shí)別的RISC型微控制器)
中文描述: 8位微控制器的電信產(chǎn)品(工作電壓為2.5V到6V的8位呼叫識(shí)別的的RISC型微控制器)
文件頁數(shù): 1/31頁
文件大?。?/td> 191K
代理商: EM78810
1
* This specification are subject to be changed without notice.
9.30.1997
EM78810
8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT
GENERAL DESCRIPTION
The EM78810 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 generator
and tri-state I/O . The EM78810 provides a single chip solution to design a CID of calling message_display .
FEATURES
CPU
Operating voltage range : 2.5V~6V
8Kx13 on chip ROM
1.3Kx8 on chip RAM
Up to 44 bi-directional tri-state I/O ports
8 level stack for subroutine nesting
8-bit real time clock/counter (TCC)
Two sets of 8 bit counters can be interrupt sources
Selective signal sources and trigger edges , and with overflow interrupt
Programmable free running on chip watchdog timer
99.9% single instruction cycle commands
Three modes (internal clock 3.679MHz)
1. sleep mode : 3.679MHz clock turn off, 32.768KHz clock turn off
2. Green mode : 3.679MHz clock turn off, 32.768KHz clock turn on
3. Normal mode : 3.679MHz clock turn on , 32.768KHz clock turn on
Ring on voltage detector and low battery detector
Input port wake up function
7 interrupt source , 4 external , 3 internal
100 QFP
Clock frequency 32.768KHz
CID
Demodulator for BELL 202 and ITU-T V.23
DTMF generator
Ring detector on chip
LCD
Operation voltage range : 3.5V ~6V for FSK
Operation voltage range : 2.5V ~6V for DTMF
LCD operation voltage chosen by software
Common driver pins : 16
Segment driver pins : 60
1/4 bias
1/8,1/16 duty
APPLICATION
1. adjunct units
2. answering machines
3. feature phones
Patent Number : 61007 (R.O.C)
Patent Pending : 83216083 (R.O.C)
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