STM8S105K4T6C STMicroelectronics, STM8S105K4T6C Datasheet - Page 15

• Manufacturer Part Number: STM8S105K4T6C
• Description: MCU 16KB FLASH MEM 16MHZ 32-LQFP
• Manufacturer: STMicroelectronics
• Series: STM8Sr

Specifications of STM8S105K4T6C

• Core Processor: STM8
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.95 V ~ 5.5 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: STM8S10x
• Core: STM8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 25
• Number Of Timers: 8
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWSTM8
• Development Tools By Supplier: STICE-SYS001
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 7 Channel
• A/d Bit Size: 10 bit
• A/d Channels Available: 7
• Height: 1.4 mm
• Length: 7 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.95 V
• Width: 7 mm
• For Use With: 497-10040 - EVAL KIT STM8S DISCOVERY497-10593 - KIT STARTER FOR STM8S207/8 SER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8947; STM8S105K4T6C

STM8S105xx
4.6
Bit
PCKEN1 7
PCKEN1 6
PCKEN1 5
PCKEN1 4
Table 3: Peripheral clock gating bit assignments in CLK_PCKENR1/2 registers
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Power management
For efficent power management, the application can be put in one of four different low-power
modes. You can configure each mode to obtain the best compromise between lowest power
consumption, fastest start-up time and available wakeup sources.
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Peripheral
clock
TIM1
TIM3
TIM2
TIM4
-
-
Startup clock: After reset, the microcontroller restarts by default with an internal 2 MHz
clock (HSI/8). The prescaler ratio and clock source can be changed by the application
program as soon as the code execution starts.
Clock security system (CSS): This feature can be enabled by software. If an HSE clock
failure occurs, the internal RC (16 MHz/8) is automatically selected by the CSS and an
interrupt can optionally be generated.
Configurable main clock output (CCO): This outputs an external clock for use by the
application.
Wait mode: In this mode, the CPU is stopped, but peripherals are kept running. The
wakeup is performed by an internal or external interrupt or reset.
Active halt mode with regulator on: In this mode, the CPU and peripheral clocks are
stopped. An internal wakeup is generated at programmable intervals by the auto wake up
unit (AWU). The main voltage regulator is kept powered on, so current consumption is
higher than in active halt mode with regulator off, but the wakeup time is faster. Wakeup
is triggered by the internal AWU interrupt, external interrupt or reset.
Active halt mode with regulator off: This mode is the same as active halt with regulator
on, except that the main voltage regulator is powered off, so the wake up time is slower.
Halt mode: In this mode the microcontroller uses the least power. The CPU and peripheral
clocks are stopped, the main voltage regulator is powered off. Wakeup is triggered by
external event or reset.
16 MHz high-speed internal RC oscillator (HSI)
128 kHz low-speed internal RC (LSI)
Bit
PCKEN1 3
PCKEN1 2
PCKEN1 1
PCKEN1 0
Peripheral
clock
UART2
Reserved
SPI
I
2
C
DocID14771 Rev 10
Bit
PCKEN2 7
PCKEN2 6
PCKEN2 5
PCKEN2 4
Peripheral
clock
Reserved
Reserved
Reserved
Reserved
Bit
PCKEN2 3
PCKEN2 2
PCKEN2 1
PCKEN2 0
Product overview
Peripheral
clock
ADC
AWU
Reserved
Reserved
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