STM8S903K3T6C STMicroelectronics, STM8S903K3T6C Datasheet - Page 22

• Manufacturer Part Number: STM8S903K3T6C
• Description: MCU 8BIT 8K MEMORY 32-LQFP
• Manufacturer: STMicroelectronics
• Series: STM8Sr

Specifications of STM8S903K3T6C

• 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: 28
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 640 x 8
• Ram Size: 1K 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: STM8S90x
• Core: STM8
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 28
• Number Of Timers: 7
• 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
• For Use With: 497-10593 - KIT STARTER FOR STM8S207/8 SER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8944

Pinout and pin description
5.3
22/113
T S S O P
SO20
4
5
6
7
8
9
10
SDIP
32
6
7
8
9
10
11
12
13
14
UFQFPN/
LQFP32
1
2
3
4
5
6
7
8
9
1. (HS) high sink capability.
2. (T) true open drain (P-buffer and protection diode to V
3. [ ] alternate function remapping option (if the same alternate function is shown twice, it
Pin description
Pin name
NRST
PA1/ OSCIN
PA2/ OSCOUT
V SS
VCAP
V DD
PA3/ TIM5_CH3 [SPI_NSS]
[UART1_TX]
PF4 [UART1_RX]
PB7
[UART1_TX][SPI_NSS]/TIM5_CH3/PA3(HS)
Table 5: TSSOP20/SO20/UFQFPN32/LQFP32/SDIP32 pin description
indicates an exclusive choice not a duplication of the function).
TIM5_CH1[UART1_CK]BEEP/PD4(HS)
AIN4/TIM5_CH2/ADC_ETR/PD3(HS)
(2)
[TIM1_BKIN]I2C_SDA/PB5(T)
AIN6/UART1_RX/PD6(HS)
AIN5/UART1_TX/PD5(HS)
[TIM1_CH4]TLI/PD7(HS)
Type
I/O
I/O
I/O
S
S
S
I/O
I/O
I/O
[UART1_RX]/PF4
OSCOUT/PA2
Input
floating
X
X
X
X
X
Figure 5: STM8S903K3/F3 SDIP32 pinout
OSCIN/PA1
NRST
VCAP
wpu
X
X
X
X
X
X
V DD
V SS
PB7
PB6
DocID15590 Rev 5
Ext.
interrupt
X
X
X
X
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Output
High
sink
HS
(1)
Speed
O1
O1
O3
O1
O1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OD
X
X
X
X
X
PD2(HS)[AIN3][TIM5_CH3]
PD1(HS)/SWIM
PD0(HS)/TIM1_BKIN[CLK_CCO]
PC7(HS)/SPI_MISO[TIM1_CH2]
PC6(HS)/SPI_MOSI[TIM1_CH1]
PC5(HS)/SPI_SCK[TIM5_CH1]
PC4(HS)/TIM1_CH4/CLK_CCO[AIN2][TIM1_CH2N]
PC3(HS)/TIM1_CH3[TLI][TIM1_CH1N]
PC2(HS)/TIM1_CH2[TIM1_CH3N]
PC1(HS)/TIM1_CH1/UART1_CK[TIM1_CH2N]
PE5/SPI_NSS[TIM1_CH1N]
PB0(HS)/AIN0/TIM1_CH1N
PB1(HS)/AIN1/TIM1_CH2N
PB2(HS)/AIN2/TIM1_CH3N
PB3(HS)[AIN3]TIM1_ETR
PB4(T)/I2C_SCL[ADC_ETR]
PP
X
X
X
X
X
Main
function
(after
reset)
Reset
Port
A1
Port
A2
Digital ground
1.8 V regulator capacitor
Digital power supply
Port
A3
Port
F4
Port
B7
DD
not implemented).
Default alternate function
Resonator/ crystal in
Resonator/ crystal out
Timer 52 channel 3
STM8S903K3 STM8S903F3
Alternate function after remap
[option bit]
SPI master/ slave select
[AFR1]/ UART1 data transmit
[AFR1:0]
UART1 data receive [AFR1:0]