参数资料
型号: ST72F652AR4T1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQFP64
封装: 10 X 10 MM, TQFP-64
文件页数: 103/160页
文件大小: 979K
代理商: ST72F652AR4T1
ST7265x
47/160
I/O PORTS (Cont’d)
When the signal is coming from an on-chip periph-
eral, the I/O pin is automatically configured in out-
put mode (push-pull or open drain according to the
peripheral).
When the signal is going to an on-chip peripheral,
the I/O pin must be configured in input mode. In
this case, the pin state is also digitally readable by
addressing the DR register.
Note: Input pull-up configuration can cause unex-
pected value at the input of the alternate peripheral
input. When an on-chip peripheral use a pin as in-
put and output, this pin has to be configured in in-
put floating mode.
CAUTION: The alternate function must not be ac-
tivated as long as the pin is configured as input
with interrupt, in order to avoid generating spurious
interrupts.
Analog alternate function
When the pin is used as an ADC input, the I/O
must be configured as floating input. The analog
multiplexer (controlled by the ADC registers)
switches the analog voltage present on the select-
ed pin to the common analog rail which is connect-
ed to the ADC input.
It is recommended not to change the voltage level
or loading on any port pin while conversion is in
progress. Furthermore it is recommended not to
have clocking pins located close to a selected an-
alog pin.
WARNING: The analog input voltage level must
be within the limits stated in the absolute maxi-
mum ratings.
1
相关PDF资料
PDF描述
ST72P651AR6T1/XXX 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP64
ST72T121J4B3S 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP42
ST72T121J4B6S 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP42
ST72E121J4D0 8-BIT, UVPROM, 8 MHz, MICROCONTROLLER, CDIP42
ST72T121J4T6 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP44
相关代理商/技术参数
参数描述
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 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT