參數(shù)資料
型號(hào): EM78267
廠商: ELAN Microelctronics Corp .
英文描述: 8-Bit Micro-Controller for Telecom Product(用于無繩電話的帶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位微控制器的電信產(chǎn)品(用于無繩電話的帶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): 12/19頁
文件大?。?/td> 138K
代理商: EM78267
* This specification are subject to be changed without notice.
EM78267/467A/B/C
8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT
PCRD
12
9.30.1997
Preliminary
* The Rex is 560K ohm external resistor
Fig. 7(b) The circuit of I/O port with R-option (P70,P71)
Fig. 8 Block diagram of Reset of controller
RESET and Wake-up
The RESET can be caused by
(1) Power on reset,
(2) /RESET pin input “l(fā)ow”, or
P
CLK
D
Q
QC
PCWR
P
CLK
D
Q
QC
PDWR
0
1
PDRD
M
U
X
PORT
IOD
ROC
V
CC
Weekly
Pull-up
Rex*
Oscillator
Power-on
Reset
VDD
D
CLK
Q
CLR
WTE
WDT
RESET
WDT Timeout
Reset
CLK
18 ms
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