STM32W108CBU63TR STMicroelectronics, STM32W108CBU63TR Datasheet - Page 54

• Manufacturer Part Number: STM32W108CBU63TR
• Description: 16/32-BITS MICROS
• Manufacturer: STMicroelectronics
• Series: STM32r

Specifications of STM32W108CBU63TR

• 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

Integrated voltage regulator
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Table 5.
An external 1.8 V regulator may replace both internal regulators. The STM32W108 can
control external regulators during deep sleep using open-drain GPIO PA7, as described in
Section 8: General-purpose
sleep to disable the external regulator and an external pull-up is required to release this
signal to indicate that supply voltage should be provided. Current consumption increases
approximately 2 mA when using an external regulator. When using an external regulator the
internal regulators should be disabled through software.
1V8 regulator start-up time
1V25 regulator start-up time
Parameter
1.8 V integrated voltage regulator specifications (continued)
input/outputs. The STM32W108 drives PA7 low during deep
Doc ID 16252 Rev 8
Min.
Typ.
50
50
Max.
STM32W108CB, STM32W108HB
Units
µs
µs
0 V to POR threshold 2.2
µF capacitor
0 V to POR threshold 1.0
µF capacitor
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