參數(shù)資料
型號(hào): EM78447A
廠(chǎng)商: ELAN Microelctronics Corp .
英文描述: 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)
中文描述: 8位微控制器的通用產(chǎn)品(帶4K的× 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(yè)數(shù): 1/20頁(yè)
文件大小: 284K
代理商: EM78447A
1
* This specification are subject to be changed without notice.
EM78247A/447A
8-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT
9.30.1997
GENERAL DESCRIPTION
The EM78247A/447A 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, power down mode and bi-directional tri-state I/O ports.
FEATURES
Operating voltage range : 2.5V ~ 5.5V
Available in temperature range: 0
°
C ~ 70
°
C.
Operating frequency range :
Crystal Type :
RC Type :
2K x 13 on chip ROM (EM78247A), or
4K x 13 on chip ROM (EM78447A)
9 special function registers
148
×
8 general purpose registers (SRAM)
3 bi-directional tri-state I/O ports (20 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
Selectable oscillator options:
XTAL1 type (High frequency)
XTAL2 type (32.768KHz)
RC type
External clock input
Two oscillator periods per instruction cycle
Power down mode
Programmable wake up from sleep circuit on I/O ports
Programmable free running on-chip watchdog timer
Ten pull-up and wake-up pins
Two open-drain pins
Two R-option pins
Interrupt function available
28 pin DIP, SOIC, 28 pin SSOP
DC ~ 20MHz at 5V
DC ~ 4MHzat 5V
DC ~ 8MHzat 3V
DC ~ 4MHzat 3V
Patent Number : 61007 (R.O.C)
Patent Pending : 83216083 (R.O.C)
相關(guān)PDF資料
PDF描述
EM78247B 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)
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EM78448 8-Bit Micro-Controller for General-Purpose Product(帶4K × 13片上ROM,工作電壓4.5V-5.5V的8位微控制器)
EM78256 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)
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