STM32W108HB STMicroelectronics, STM32W108HB Datasheet - Page 63

• Manufacturer Part Number: STM32W108HB
• Description: High-performance, IEEE 802.15.4 wireless system-on-chip with embedded Flash memory
• Manufacturer: STMicroelectronics

Specifications of STM32W108HB

• Receive Current (w/ Cpu): 27 mA
• Transmit Current (w/ Cpu, +3 Dbm Tx): 31 mA
• Low Deep Sleep Current, With Retained Ram And Gpio: 400 nA/800 nA with/without sleep timer
• Standard Arm Debug Capabilities: Flash patch & breakpoint; data watchpoint & trace; instrumentation trace macrocell
• Single Voltage Operation: 2.1-3.6 V with internal 1.8 V and 1.25 V regulators

STM32W108HB STM32W108CC STM32W108CB STM32W108CZ
Note:
Note:
When configured in output mode:
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Depending on configuration and usage, GPIO_PxOUT and GPIO_PxIN may not have the
same value.
Alternate output mode
In this mode, the output is controlled by an on-chip peripheral instead of GPIO_PxOUT and
may be configured as either push-pull or open-drain. Most peripherals require a particular
output type - I
does not by itself configure a pin, the GPIO_PxCFGH/L registers must be configured
properly for a peripheral's particular needs. As described in
page
addition to GPIO_PxCFGH/L determine which to use.
When configured in alternate output mode:
●
●
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Depending on configuration and usage, GPIO_PxOUT and GPIO_PxIN may not have the
same value.
Alternate output SPI SCLK mode
SPI master mode SCLK outputs, PB3 (SC1SCLK) or PA2 (SC2SCLK), use a special output
push-pull mode reserved for those signals. Otherwise this mode is identical to alternate
output mode.
The output drivers are enabled and are controlled by the value written to
GPIO_PxOUT:
In open-drain mode: 0 activates the N-MOS current sink; 1 tri-states the pin.
In push-pull mode: 0 activates the N-MOS current sink; 1 activates the P-MOS current
source.
The internal pull-up and pull-down resistors are disabled.
The Schmitt trigger input is connected to the pin.
Reading GPIO_PxIN returns the input at the pin.
Reading GPIO_PxOUT returns the last value written to the register.
The output drivers are enabled and are controlled by the output of an on-chip
peripheral:
In open-drain mode: 0 activates the N-MOS current sink; 1 tri-states the pin.
In push-pull mode: 0 activates the N-MOS current sink; 1 activates the P-MOS current
source.
The internal pull-up and pull-down resistors are disabled.
The Schmitt trigger input is connected to the pin.
Reading GPIO_PxIN returns the input to the pin.
59, when more than one peripheral can be the source of output data, registers in
2
C requires an open-drain driver, for example - but since using a peripheral
Doc ID 16252 Rev 13
General-purpose input/outputs
Section 8.1.2: Configuration on
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