參數(shù)資料
型號: ST72F652R4T1
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, PQFP64
封裝: 14 X 14 MM, TQFP-64
文件頁數(shù): 149/160頁
文件大小: 974K
代理商: ST72F652R4T1
ST7265
89/160
PWM/BRM GENERATOR (Cont’d)
PWM/BRM Outputs
The PWM/BRM outputs are assigned to dedicated
pins.
The PWM/BRM outputs can be connected to an
RC filter (see Figure 51 for an example).
The RC filter time must be higher than TCPUx64.
Figure 51. Typical PWM Output Filter
Table 26. 6-Bit PWM Ripple After Filtering
With RC filter (R=1K
),
fCPU = 8 MHz
V
DD =5V
PWM Duty Cycle 50%
R=Rext
Note: after a reset these pins are tied low by de-
fault and are not in a high impedance state.
Figure 52. PWM Simplified Voltage Output After Filtering
Cext
OUTPUT
VOLTAGE
STAGE
OUTPUT
Rext
Cext (
F)
V RIPPLE (mV)
0.128
78
1.28
7.8
12.8
0.78
V
DD
0V
DD
V
Vripple (mV)
V
OUTAVG
”CHARGE”
”DISCHARGE”
”CHARGE”
”DISCHARGE”
0V
V
0V
OUTAVG
V
(mV)
ripple
V
”CHARGE”
”DISCHARGE”
”CHARGE”
”DISCHARGE”
PWMOUT
DD
PWMOUT
OUTPUT
VOLTAGE
OUTPUT
VOLTAGE
相關(guān)PDF資料
PDF描述
ST733C04LHK1L 1900 A, 400 V, SCR, TO-200AC
ST733C04LHK3 1900 A, 400 V, SCR, TO-200AC
ST7PLITE09Y0U6TR 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20
STARX032XXEEXF120.0 INTERVAL-DELAY RELAY, DPDT, MOMENTARY, 24VDC (COIL), 3000mW (COIL), 10A (CONTACT), 28VDC (CONTACT), 120s, SOCKET MOUNT
STARX032XXEEXF4.000 INTERVAL-DELAY RELAY, DPDT, MOMENTARY, 24VDC (COIL), 3000mW (COIL), 10A (CONTACT), 28VDC (CONTACT), 4s, SOCKET MOUNT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72P262M6/OZXTR 制造商:STMicroelectronics 功能描述:ST72P262M6/OZXTR
ST72P324TA/OBZTR 制造商:STMicroelectronics 功能描述:
ST72P324TA/OHXTR 制造商:STMicroelectronics 功能描述:
ST72P4T128M-A05AU 制造商:STEC Inc 功能描述:1GB,ECC,REG,DDR2-400,UNLEAD - Bulk
ST72T101G1B6 功能描述:8位微控制器 -MCU OTP EPROM 4K SPI 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(fēng)格:SMD/SMT