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| 型號： | HE85750 |
| 廠商： | King Billion Electronics Co., Ltd. |
| 英文描述： | 8-bit Micro-controller |
| 中文描述： | 8位微控制器 |
| 文件頁數(shù)： | 10/23頁 |
| 文件大?。?/td> | 399K |
| 代理商： | HE85750 |
King Billion Electronics Co., Ltd
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HE85750
HE80000 SERIES
Crystal, Resonator or the RC oscillator can be used as fast clock source, components should be placed as
2003/7/30
This specification is subject to change without notice. Please contact sales person for the latest version before use.
10
V1.52E
close to the pins as possible. The type of oscillator used is selected by mask option MO_FXTAL.
VDD
FXI
FXI
FXO
Crystal Osc.
RC Osc.
MO_FXTAL Fast clock type
0
RC Oscillator.
1
Crystal Oscillator.
Slow clock is the clock source for LCD display, Timer1, and Timer Base, etc. Two types of oscillator,
crystal and RC, can be used as slow clock by mask option MO_SXTAL. If used for time keeping function
or other applications that required the accurate timing, crystal oscillator is recommended. If the timing
accuracy is not important, then RC type oscillator can be used to reduce cost.
MO_SXTAL Slow clock type
0
R/C oscillator
1
Crystal oscillator
SXI
SXI
SXO
SXO
Crystal Osc.
RC Osc.
With two clock sources available, the system operation modes can be switched among normal, slow, idle,
and sleep modes by the setting of OP1 and OP2 registers as shown in tables below to suit the needs of
application such as power saving, etc. If the dual clock mode is used, the LCD display, Timer1 and Timer
Base will derive its clock source from slow clock while the other blocks will operate with the fast clock.
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