Datasheet

STM8S903K3 STM8S903F3
16 MHz STM8S 8-bit MCU, up to 8 Kbytes Flash, 1 Kbyte RAM, 640
bytes EEPROM,10-bit ADC, 2 timers, UART, SPI, I²C
UFQFPN32 5x5LQFP32 7x7 SDIP32 400 mils
TSSOP20 SO20W 300 milsUFQFPN20 3x3
Features
Core
•
16 MHz advanced STM8 core with Harvard
architecture and 3-stage pipeline
•
Extended instruction set
Memories
•
Program memory: 8 Kbytes Flash; data retention
20 years at 55 °C after 10 kcycles
•
Data memory: 640 bytes true data EEPROM;
endurance 300 kcycles
•
RAM: 1 Kbytes
Clock, reset and supply management
•
2.95 to 5.5 V operating voltage
•
Flexible clock control, 4 master clock sources:
-
Low power crystal resonator oscillator
-
External clock input
-
Internal, user-trimmable 16 MHz RC
-
Internal low power 128 kHz RC
•
Clock security system with clock monitor
•
Power management:
-
Low power modes (wait, active-halt, halt)
-
Switch-off peripheral clocks individually
•
Permanently active, low consumption power-on
and power-down reset
Interrupt management
•
Nested interrupt controller with 32 interrupts
•
Up to 28 external interrupts on 7 vectors
Timers
•
Advanced control timer: 16-bit, 4 CAPCOM
channels, 3 complementary outputs, dead-time
insertion and flexible synchronization
•
16-bit general purpose timer, with 3 CAPCOM
channels (IC, OC or PWM)
•
8-bit basic timer with 8-bit prescaler
•
Auto wakeup timer
•
Window and independent watchdog timers
Communications interfaces
•
UART with clock output for synchronous
operation, Smartcard, IrDA, LIN master mode
•
SPI interface up to 8 Mbit/s
•
I
2
C interface up to 400 Kbit/s
Analog to digital converter (ADC)
•
10-bit, ±1 LSB ADC with up to 7 muxed channels
+ 1 internal channel, scan mode and analog
watchdog
•
Internal reference voltage measurement
I/Os
•
Up to 28 I/Os on a 32-pin package including 21
high sink outputs
•
Highly robust I/O design, immune against current
injection
Development support
•
Embedded single wire interface module (SWIM)
for fast on-chip programming and non intrusive
debugging
Unique ID: 96-bit key including lot number
1/116
DocID15590 Rev 8
June 2012
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