STM32W108CBU64TR STMicroelectronics, STM32W108CBU64TR Datasheet - Page 157
STM32W108CBU64TR
Manufacturer Part Number
STM32W108CBU64TR
Description
MCU, RF, 32BIT, 128K FLASH, 48VFQFPN
Manufacturer
STMicroelectronics
Series
STM32r
Specifications of STM32W108CBU64TR
Controller Family/series
STM32
Core Size
32bit
No. Of I/o's
24
Program Memory Size
128KB
Ram Memory Size
8KB
Cpu Speed
24MHz
Oscillator Type
Internal, External
No. Of Timers
2
Rohs Compliant
Yes
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
11
Note:
Analog-to-digital converter
The STM32W108 analog-to-digital converter (ADC) is a first-order sigma-delta converter
with the following features:
●
●
●
●
●
●
●
Figure 50
Figure 50. ADC block diagram
While the ADC Module supports both single-ended and differential inputs, the ADC input
stage always operates in differential mode. Single-ended conversions are performed by
connecting one of the differential inputs to VREF/2 while fully differential operation uses two
external inputs.
In high voltage mode, input buffers (with 0.25 gain only) may experience long term drift of its
input offset voltage that affects ADC accuracy. In these cases, only the 1.2V input range
mode of the ADC should be used. If measurement of signals >1.2V is required, then
external attenuation should be added.
Resolution of up to 12 bits
Sample times as fast as 5.33 µs (188 kHz)
Differential and single-ended conversions from six external and four internal sources
Two voltage ranges (differential): -VREF to +VREF, and –VDD_PADS to +VDD_PADS
Choice of internal or external VREF: internal VREF may be output
Digital offset and gain correction
Dedicated DMA channel with one-shot and continuous operating modes
shows the basic ADC structure.
Doc ID 16252 Rev 8
Analog-to-digital converter
157/209
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