參數(shù)資料
型號(hào)： ST72T2311R6T6S
廠商： 意法半導(dǎo)體
英文描述： 8-BIT MCU WITH NESTED INTERRUPTS, EEPROM, ADC, 16-BIT TIMERS, 8-BIT PWM ART, SPI, SCI, CAN INTERFACES
中文描述： 8位嵌套中斷，EEPROM存儲(chǔ)器，模數(shù)轉(zhuǎn)換器，16位定時(shí)器，8位PWM藝術(shù)，SPI和脊髓損傷，微控制器的CAN接口
文件頁數(shù)： 85/164頁
文件大小： 1043K
代理商： ST72T2311R6T6S
ST72311R, ST72511R, ST72512R, ST72532R
27/164
5.3 LOW CONSUMPTION OSCILLATOR
The fOSC main clock of the ST7 can be generated
by two different source types:
s
an external source
s
a crystal or ceramic resonator oscillators
The associated hardware configuration are shown
in Table 4. Refer to the electrical characteristics
section for more details.
External Clock Source
In this external clock mode, a clock signal (square,
sinus or triangle) with ~50% duty cycle has to drive
the OSC1 pin while the OSC2 pin is tied to ground.
Crystal/Ceramic Oscillator
This oscillator (based on constant current source)
is optimized in terms of consumption and has the
advantage of producing a very accurate rate on
the main clock of the ST7.
When using this oscillator, the resonator and the
load capacitances have to be connected as shown
in Table 4 and have to be mounted as close as
possible to the oscillator pins in order to minimize
output distortion and start-up stabilization time.
This oscillator is not stopped during the RESET
phase to avoid losing time in the oscillator start-up
phase.
These oscillators are not stopped during the
RESET phase to avoid losing time in the oscillator
start-up phase.
Table 4. ST7 Clock Sources
Hardware Configur ation
External
Clock
Crystal/Ceramic
Resonators
OSC1
OSC2
EXTERNAL
ST7
SOURCE
VDD
ROBP
OSC1
OSC2
LOAD
CAPACITORS
ST7
CL2
CL1
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ST72T251G1M6 功能描述:8位微控制器 -MCU RO 511-ST72C254G1M6 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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ST72T251G2M6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI/I2C RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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