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參數(shù)資料
| 型號： | EM78P860 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 8 -BIT MICRO-CONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大?。?/td> | 191K |
| 代理商： | EM78P860 |
* This specification is subect tobechanged wthout noice
4.17.2000
EM78P860
8 -BIT MICRO-CONTROLLER
1
I.
GENERAL DESCRIPTION
The EM78P860 is an 8-bit 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 and tri-state I/O . The EM78P860 provides a single chip solution
to design a message display .
II.
FEATURES
CPU
Operating voltage range :
2.5V~5.5V
16Kx13 on chip ROM
2.8Kx8 on chip RAM
Up to 32 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 with overflow interrupt
Programmable free running on chip watchdog timer
99.9% single instruction cycle commands
Four modes (internal clock 3.679MHz, external 32.768KHz)
1.
Sleep mode : CPU and 3.679MHz clock turn off, 32.768KHz clock turn off
2.
Idle mode : CPU and 3.679MHz clock turn off, 32.768KHz clock turn on
3.
Green mode : 3.679MHz clock turn off, CPU and 32.768KHz clock turn on
4.
Normal mode : 3.679MHz clock turn on , CPU and 32.768KHz clock turn on
Low battery detector
Input port wake up function
8 interrupt source , 4 external , 3 internal
100 pin QFP (EM78860AQ, POVD disable) (EM78860BQ, POVD enable) or chip (EM78860H)
Port key scan function
Port interrupt , pull high and open drain functions
Clock frequency 32.768KHz externally
LCD
LCD operation voltage chosen by software
Common driver pins : 16
Segment driver pins : 60
1/4 bias
1/8,1/16 duty
III.
APPLICATION
1. adjunct units
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