参数资料
型号: STR636FV2T6
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 36 MHz, RISC MICROCONTROLLER, PQFP100
封装: 14 X 14 MM, TQFP-100
文件页数: 24/51页
文件大小: 1485K
代理商: STR636FV2T6
Electrical parameters
STR73xF
30/51
3.3.2
Clock and timing characteristics
Crystal / Ceramic Resonator Oscillator
The STR73xF can operate with a crystal oscillator or resonator clock source. Figure 12 describes a
simple model of the internal oscillator driver as well as example of connection for an oscillator or a
resonator.
Figure 12.
Crystal Oscillator and Resonator
Notes
1) XTAL2 must not be used to directly drive external circuits.
2) For test or boot purpose, XTAL2 can be used as an high impedance input pin to provide an external
clock to the device. XTAL1 should be grounded, and XTAL2 connected to a wave signal generator
providing a 0 to VDD signal. Directly driving XTAL2 may results in deteriorated jitter and duty cycle.
CL
Crystal
XT
AL1
XT
AL2
RS
Resonator
XT
AL1
XT
AL2
STR73x
XT
AL1
XT
AL2
I
RF
VDD
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