STM32W108HBU64TR STMicroelectronics, STM32W108HBU64TR Datasheet - Page 59
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STM32W108HBU64TR
Manufacturer Part Number
STM32W108HBU64TR
Description
16/32-BITS MICROS
Manufacturer
STMicroelectronics
Series
STM32r
Datasheet
1.STM32W108B-KEXT.pdf
(209 pages)
Specifications of STM32W108HBU64TR
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
18
Voltage - Supply
1.18 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
40-VFQFN Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STM32W108HBU64TR
Manufacturer:
TDK
Quantity:
30 000
- Current page: 59 of 209
- Download datasheet (3Mb)
STM32W108CB, STM32W108HB
8.1.6
Note:
GPIO modes
Analog mode
Analog mode enables analog functions, and disconnects a pin from the digital input and
output logic. Only the following GPIO pins have analog functions:
●
●
●
When an external timing source is required, a 32.768 kHz crystal is commonly connected to
PC6 and PC7. Alternatively, when PC7 is configured as a digital input, PC7 can accept a
digital external clock input.
When configured in analog mode:
●
●
●
●
Input mode
Input mode is used both for general purpose input and for on-chip peripheral inputs. Input
floating mode disables the internal pull-up and pull-down resistors, leaving the pin in a high-
impedance state. Input pull-up or pull-down mode enables either an internal pull-up or pull-
down resistor based on the GPIO_PxOUT register. Setting a bit to 0 in GPIO_PxOUT
enables the pull-down and setting a bit to 1 enables the pull up.
When configured in input mode:
●
●
●
●
●
Output mode
Output mode provides a general purpose output under direct software control. Regardless
of whether an output is configured as push-pull or open-drain, the GPIO's bit in the
GPIO_PxOUT register controls the output. The GPIO_PxSET and GPIO_PxCLR registers
can atomically set and clear bits within GPIO_PxOUT register. These set and clear registers
simplify software using the output port because they eliminate the need to disable interrupts
to perform an atomic read-modify-write operation of GPIO_PxOUT.
PA4, PA5, PB5, PB6, PB7, and PC1 can be analog inputs to the ADC.
PB0 can be an external analog voltage reference input to the ADC, or it can output the
internal analog voltage reference from the ADC.
PC6 and PC7 can connect to an optional 32.768 kHz crystal.
The output drivers are disabled.
The internal pull-up and pull-down resistors are disabled.
The Schmitt trigger input is connected to a high logic level.
Reading GPIO_PxIN returns a constant 1.
The output drivers are disabled.
An internal pull-up or pull-down resistor may be activated depending on
GPIO_PxCFGH/L and GPIO_PxOUT.
The Schmitt trigger input is connected to the pin.
Reading GPIO_PxIN returns the input at the pin.
The input is also available to on-chip peripherals.
Doc ID 16252 Rev 8
General-purpose input/outputs
59/209
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