Datasheet

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STM32F051x4 STM32F051x6 STM32F051x8 Description
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Table 2. STM32F051xx family device features and peripheral count
Peripheral STM32F051Kx STM32F051T8 STM32F051Cx STM32F051Rx
Flash memory (Kbyte) 163264 64 163264163264
SRAM (Kbyte) 8
Timers
Advanced
control
1 (16-bit)
General
purpose
5 (16-bit)
1 (32-bit)
Basic 1 (16-bit)
Comm.
interfaces
SPI [I
2
S]
(1)
1 [1]
(2)
1 [1]
(2)
1 [1]
(2)
2 [1] 2 [1]
I
2
C1
(3)
1
(3)
1
(3)
21
(3)
2
USART 1
(4)
221
(4)
21
(4)
2
CEC 1
12-bit ADC
(number of channels)
1
(10 ext. + 3 int.)
1
(16 ext. + 3 int.)
12-bit DAC
(number of channels)
1
(1)
Analog comparator 2
GPIOs
25 (on LQFP32)
27 (on UFQFPN32)
29 39 55
Capacitive sensing channels
13 (on LQFP32)
14 (on UFQFPN32)
14 17 18
Max. CPU frequency 48 MHz
Operating voltage 2.0 to 3.6 V
Operating temperature
Ambient operating temperature: -40°C to 85°C / -40°C to 105°C
Junction temperature: -40°C to 105°C / -40°C to 125°C
Packages
LQFP32
UFQFPN32
WLCSP36
LQFP48
UFQFPN48
LQFP64
UFBGA64
1. The SPI1 interface can be used either in SPI mode or in I
2
S audio mode.
2. SPI2 is not present.
3. I2C2 is not present.
4. USART2 is not present.
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