STM8S903K3U6 STMicroelectronics, STM8S903K3U6 Datasheet - Page 101

• Manufacturer Part Number: STM8S903K3U6
• Description: IC MCU 8BIT 8KB FLASH 32UFQFPN
• Manufacturer: STMicroelectronics
• Series: STM8Sr

Specifications of STM8S903K3U6

• 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 ~ 85°C
• Package / Case: *
• Core: STM8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STM8S903K3 STM8S903F3
12.1
12.2
Reference document
JESD51-2 integrated circuits thermal test method environment conditions - natural convection
(still air). Available from www.jedec.org.
Selecting the product temperature range
When ordering the microcontroller, the temperature range is specified in the order code.
The following example shows how to calculate the temperature range needed for a given
application.
Assuming the following application conditions:
•
•
•
•
T
T
This is within the range of the suffix 6 version parts (-40 < T
In this case, parts must be ordered at least with the temperature range suffix 6.
Jmax
Jmax
Maximum ambient temperature T
I
Maximum 20 I/Os used at the same time in output at low level with
I
P
Amax
P
Thus: P
DDmax
OL
INTmax =
Dmax =
for LQFP32 can be calculated as follows, using the thermal resistance Θ
= 75 °C + (60 °C/W x 464 mW) = 75 °C + 27.8 °C = 102.8 °C
= 8 mA, V
= 8 mA, V
Dmax
400
8 mA x 5 V = 400 mW
mW +
= 464 mW
OL
= 0.4 V
DD
64 mW
= 5 V
DocID15590 Rev 5
Amax
= 75 °C (measured according to JESD51-2)
J
< 105 °C).
Thermal characteristics
JA
:
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