STM32W108CBU61TR STMicroelectronics, STM32W108CBU61TR Datasheet - Page 55
STM32W108CBU61TR
Manufacturer Part Number
STM32W108CBU61TR
Description
16/32-BITS MICROS
Manufacturer
STMicroelectronics
Series
STM32r
Specifications of STM32W108CBU61TR
Applications
RF4CE, Remote Control
Core Processor
ARM® Cortex-M3™
Program Memory Type
FLASH (128 kB)
Controller Series
STM32W
Ram Size
8K x 8
Interface
I²C, SPI, UART/USART
Number Of I /o
24
Voltage - Supply
1.18 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-VFQFN Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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STM32W108CB, STM32W108HB
8
General-purpose input/outputs
The STM32W108 has 24 multi-purpose GPIO pins that may be individually configured as:
●
●
●
●
●
●
●
The basic structure of a single GPIO is illustrated in
Figure 8.
A Schmitt trigger converts the GPIO pin voltage to a digital input value. The digital input
signal is then always routed to the GPIO_PxIN register; to the alternate inputs of associated
peripheral devices; to wake detection logic if wake detection is enabled; and, for certain
pins, to interrupt generation logic. Configuring a pin in analog mode disconnects the digital
input from the pin and applies a high logic level to the input of the Schmitt trigger.
Only one device at a time can control a GPIO output. The output is controlled in normal
output mode by the GPIO_PxOUT register and in alternate output mode by a peripheral
device. When in input mode or analog mode, digital output is disabled.
General purpose output
General purpose open-drain output
Alternate output controlled by a peripheral device
Alternate open-drain output controlled by a peripheral device
Analog
General purpose input
General purpose input with pull-up or pull-down resistor
GPIO_PxSET
GPIO_PxCLR
GPIO_PxOUT
GPIO block diagram
Alternate output
Alternate input
Wake detection
GPIO_PxIN
GPIO_PxWAKE
Doc ID 16252 Rev 8
Output control
(push pull ,
open drain , or
disabled )
VDD_PADS
Schmitt trigger
GND
N-MOS
P-MOS
GPIO_PxCFGH/L
Figure
General-purpose input/outputs
VDD_PADS
8.
GND
functions
Analog
VDD_PADS
GND
Protection
Protection
diode
diode
55/209
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