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參數(shù)資料
| 型號(hào)： | EM78256 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 8-Bit Micro-Controller for General-Purpose Product(帶2K × 13片上ROM，工作電壓2.5V-5.5V的8位微控制器) |
| 中文描述： | 8位微控制器的通用產(chǎn)品（帶2K × 13片上ROM的，工作電壓為2.5V至5.5V的8位微控制器） |
| 文件頁數(shù)： | 1/21頁 |
| 文件大?。?/td> | 258K |
| 代理商： | EM78256 |
1
* This specification are subject to be changed without notice.
EM78156/256/456
8-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT
4.15.1996
GENERAL DESCRIPTION
The EM78156/256/456 is an 8-bit microprocessor with low-power, high speed CMOS technology. Integrated
onto a single chip are on-chip watchdog timer (WDT), RAM, ROM, programmable real time clock/counter,
external and internal interrupt, power down mode, and tri-state I/O.
FEATURES
Operating voltage range : 2.5V ~ 5.5V
Available in temperature range: 0
°
C~70
°
C
Optional instruction cycle periods:
Two oscillator clocks, or
Four oscillator clocks
Operating frequency range : (two oscillator clocks per instructrion cycle)
Crystal Type
DC ~ 16MHz
at 5V
DC ~ 4MHz
at 3V
1K x 13 on chip ROM (EM78156).
2K x 13 on chip ROM (EM78256).
4K x 13 on chip ROM (EM78456).
14 special function registers.
48 x 8 on chip RAM.
2 bi-directional tri-state I/O ports (12 I/O pins).
5 level stack for subroutine nesting.
8-bit real time clock/counter (TCC) with selective signal sources and trigger edges, and with overflow
interrupt.
Programmable free running on-chip watchdog timer.
Two R-option pin.
Selectable oscillator options: XTAL1 type (High frequency), XTAL2 type (32.768 KHz), RC type, External
clock input.
99.9% single instruction cycle commands.
Power down mode.
Power on voltage detector.
Input port change interrupt (wake-up), and external interrupt available.
18 pin DIP, 18 pin SOIC, 20 pin SSOP.
RC Type
DC ~ 4MHz
DC ~ 4MHz
at 5V
at 3V
Patent Number : 62706, 61007 (R.O.C)
Patent Pending : 83216083 (R.O.C)
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| EM78156 | 8-Bit Micro-Controller for General-Purpose Product(帶1K × 13片上ROM，工作電壓2.5V-5.5V的8位微控制器) |
| EM78456 | 8-Bit Micro-Controller for General-Purpose Product(帶4K × 13片上ROM，工作電壓2.5V-5.5V的8位微控制器) |
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