STM8S903K3U3 STMicroelectronics, STM8S903K3U3 Datasheet - Page 79

• Manufacturer Part Number: STM8S903K3U3
• Description: IC MCU 8BIT 8KB FLASH 32UFQFPN
• Manufacturer: STMicroelectronics
• Series: STM8Sr

Specifications of STM8S903K3U3

• Featured Product: STM32 Cortex-M3 Companion Products
• 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 ~ 125°C
• Package / Case: *
• Core: STM8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STM8S903K3 STM8S903F3
10.3.8
SPI serial peripheral interface
Unless otherwise specified, the parameters given in the following table are derived from tests
performed under ambient temperature, f
t
Refer to I/O port characteristics for more details on the input/output alternate function
characteristics (NSS, SCK, MOSI, MISO).
Symbol
MASTER
f
t
f
t
t
t
t
t
t
t
t
t
SCK
c(SCK)
SCK
c(SCK)
r(SCK)
f(SCK)
su(NSS)
h(NSS)
w(SCKH)
w(SCKL)
su(MI)
su(SI)
1/
1/
(3)
(optional)
(3)
External
(3)
= 1/f
circuit
(3)
reset
(3)
(3)
MASTER
Parameter
SPI clock
frequency
f
SPI clock rise and
fall time
NSS setup time
NSS hold time
SCK high and low
time
Data input setup
time
SCK
1/ t
.
Figure 38: Recommended reset pin protection
c(SCK)
0.1 F
Table 44: SPI characteristics
DocID15590 Rev 5
Conditions
Master mode
SPI clock frequency
Capacitive load: C = 30 pF
Slave mode
Slave mode
Master mode
Master mode
Slave mode
NRST
MASTER
VDD
(1)
RPU
frequency and V
Filter
Min
0
0
4 x
t
70
t
2 - 15
5
5
MASTER
SCK
DD
Electrical characteristics
supply voltage conditions.
/
Internal reset
Max
8
7
25
t
2 +15
SCK
(2)
/
STM8
Unit
ns
MHz
MHz
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