參數(shù)資料
型號(hào): 87LPC762
廠(chǎng)商: NXP Semiconductors N.V.
元件分類(lèi): 微控制器/微處理器
英文描述: Low power, low price, low pin count 20 pin microcontroller with 2 kbyte OTP
中文描述: 低功耗,低價(jià)格,低管腳數(shù)的2字節(jié)OTP 20引腳微控制器
文件頁(yè)數(shù): 26/57頁(yè)
文件大?。?/td> 312K
代理商: 87LPC762
Philips Semiconductors
Preliminary data
87LPC762
Low power, low price, low pin count (20 pin)
microcontroller with 2 kbyte OTP
2001 Oct 26
23
SU01224
87LPC762
QUARTZ CRYSTAL OR
CERAMIC RESONATOR
X2
X1
THE OSCILLATOR MUST BE CONFIGURED IN ONE OF
THE FOLLOWING MODES:
– LOW FREQUENCY CRYSTAL
– MEDIUM FREQUENCY CRYSTAL
– HIGH FREQUENCY CRYSTAL
*
CAPACITOR VALUES MAY BE OPTIMIZED FOR
DIFFERENT OSCILLATOR FREQUENCIES (SEE TEXT)
A SERIES RESISTOR MAY BE REQUIRED IN ORDER TO
LIMIT CRYSTAL DRIVE LEVELS. THIS IS PARTICULARLY
IMPORTANT FOR LOW FREQUENCY CRYSTALS (SEE TEXT).
Figure 16. Using the Crystal Oscillator
SU01225
87LPC762
X2
X1
THE OSCILLATOR MUST BE CONFIGURED IN
THE EXTERNAL CLOCK INPUT MODE.
A CLOCK OUTPUT MAY BE OBTAINED ON
THE X2 PIN BY SETTING THE ENCLK BIT IN
THE P2M1 REGISTER.
CMOS COMPATIBLE EXTERNAL
OSCILLATOR SIGNAL
Figure 17. Using an External Clock Input
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