參數(shù)資料
型號： ST72F60E1M1
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO24
封裝： 0.300 INCH, LEAD FREE, PLASTIC, SOP-24
文件頁數(shù)： 98/139頁
文件大?。?/td> 1993K
代理商： ST72F60E1M1
ST7260xx
Watchdog timer (WDG)
61/139
Figure 37.
Pulse width modulation cycle
If OLVL1 = 1 and OLVL2 = 0, the length of the positive pulse is the difference between the
OC2R and OC1R registers.
If OLVL1 = OLVL2, a continuous signal will be seen on the OCMP1 pin.
The OC1R register value required for a specific timing application can be calculated using
the following formula:
Where:
t
= Signal or pulse period (in seconds)
fCPU
= CPU clock frequnency (in hertz)
PRESC = Timer prescaler factor (2, 4 or 8 depending on the CC[1:0] bits; see Table 32)
If the timer clock is an external clock the formula is:
Where:
t
= Signal or pulse period (in seconds)
fEXT
= External timer clock frequency (in hertz)
The Output Compare 2 event causes the counter to be initialized to FFFCh (see Figure 36).
Note:
1
After a write instruction to the OCiHR register, the output compare function is inhibited until
the OCiLR register is also written.
2
The OCF1 and OCF2 bits cannot be set by hardware in PWM mode therefore the Output
Compare interrupt is inhibited.
3
The ICF1 bit is set by hardware when the counter reaches the OC2R value and can produce
a timer interrupt if the ICIE bit is set and the I bit is cleared.
4
In PWM mode the ICAP1 pin can not be used to perform input capture because it is
disconnected to the timer. The ICAP2 pin can be used to perform input capture (ICF2 can be
set and IC2R can be loaded) but the user must take care that the counter is reset each
period and ICF1 can also generates interrupt if ICIE is set.
5
When the Pulse Width Modulation (PWM) and One Pulse Mode (OPM) bits are both set, the
PWM mode is the only active one.
counter
OCMP1 = OLVL2
counter
= OC2R
OCMP1 = OLVL1
When
= OC1R
counter is reset
to FFFCh
ICF1 bit is set
OCiR value =
t * fCPU
PRESC
- 5
OCiR = t * fEXT - 5
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72F60E2M1 功能描述:8位微控制器 -MCU ST7262 Lo Spd USB 8B MCU 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
ST72F60K1U1 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
ST72F60K1U1TR 功能描述:8位微控制器 -MCU ST7262 Lo Spd USB 8B MCU 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
ST72F60K2B1 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
ST72F60K2U1TR 功能描述:8位微控制器 -MCU ST7262 Lo Spd USB 8B MCU 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
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