參數(shù)資料
型號(hào): ST72X754
廠商: 意法半導(dǎo)體
元件分類: ADC
英文描述: 8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C
中文描述: 8位USB單片機(jī)的顯示器,高達(dá)60K章檢察官辦公室,每1000內(nèi)存,模數(shù)轉(zhuǎn)換器,定時(shí)器,同步,材質(zhì)單元,脈寬調(diào)制/的BRM,的H / W DDC的
文件頁數(shù): 56/144頁
文件大?。?/td> 1280K
代理商: ST72X754
ST72774/ST727754/ST72734
19/144
CLOCK SYSTEM (Cont’d)
3.1.2 Crystal Resonator
The internal oscillator is designed to operate with
an
AT-cut
parallel
resonant
quartz
crystal
resonator in the frequency range specified for fosc.
The circuit shown in Figure 8 is recommended
when
using
a
crystal,
and
Table 4,
“.
Recommended Crystal Values,” on page 19 lists
the recommended capacitance and feedback
resistance values. The crystal and associated
components should be mounted as close as
possible to the input pins in order to minimize
output distortion and start-up stabilization time.
Figure 8. Crystal/Ceramic Resonator
Table 4
. Recommended Crystal Values
Legend:
CL1, CL2 = Maximum total capacitance on pins
OSCIN and OSCOUT (the value includes the
external capacitance tied to the pin plus the
parasitic capacitance of the board and of the
device).
RSMAX = Maximum series parasitic resistance of
the quartz allowed.
Note: The tables are relative to the quartz crystal
only (not ceramic resonator).
3.1.3 External Clock
An external clock should be applied to the OSCIN
input with the OSCOUT pin not connected as
shown in Figure 9. The Crystal clock specifications
do not apply when using an external clock input.
The equivalent specification of the external clock
source should be used.
Figure 9. External Clock Source Connections
OSCIN
OSCOUT
CL1
CL2
CRYSTAL CLOCK
1M*
*Recommended for oscillator stability
24 Mhz
Unit
RSMAX
70
25
20
Ohms
CL1
22
47
56
pf
CL2
22
47
56
pf
OSCIN
OSCOUT
EXTERNAL
CLOCK
NC
相關(guān)PDF資料
PDF描述
ST730C12L2L 2000 A, 1200 V, SCR, TO-200AC
ST730C12L2 2000 A, 1200 V, SCR, TO-200AC
ST730C12L3L 2000 A, 1200 V, SCR, TO-200AC
ST730C12L3 2000 A, 1200 V, SCR, TO-200AC
ST730C14L2L 2000 A, 1400 V, SCR, TO-200AC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST730 制造商:IRF 制造商全稱:International Rectifier 功能描述:PHASE CONTROL THYRISTORS Hockey Puk Version
ST7-30 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:POWER TRANSFORMER
ST-7300 制造商:GC Electronics 功能描述:
ST730186-3 制造商:KEMET Corporation 功能描述: 制造商:KET 功能描述:
ST730268-1 制造商:KEMET Corporation 功能描述: 制造商:KET 功能描述: