C8051F930DK Silicon Laboratories Inc, C8051F930DK Datasheet - Page 83

• Manufacturer Part Number: C8051F930DK
• Description: KIT DEV C8051F920,F921,F930,F931
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F930DK

• Contents: Target Board, Power Adapter, USB Debug Adapter, Cables, Batteries, and Software
• Processor To Be Evaluated: C8051F930
• Processor Series: C8051F9xx
• Data Bus Width: 8 bit
• Interface Type: I2C, UART, SPI
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 0.9 V to 3.6 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: C8051F920, F921, F930, F931
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1473

5.6.
An on-chip temperature sensor is included on the C8051F93x-C8051F92x which can be directly accessed
via the ADC multiplexer in single-ended configuration. To use the ADC to measure the temperature sensor,
the ADC mux channel should select the temperature sensor. The temperature sensor transfer function is
shown in Figure 5.8. The output voltage (V
correctly. The TEMPE bit in register REF0CN enables/disables the temperature sensor, as described in
SFR Definition 5.15. While disabled, the temperature sensor defaults to a high impedance state and any
ADC measurements performed on the sensor will result in meaningless data. Refer to Table 4.9 for the
slope and offset parameters of the temperature sensor.
Temperature Sensor
Figure 5.8. Temperature Sensor Transfer Function
Temp
V
TEMP
C
=
= 25 + (
Slope
TEMP
V
x (Temp
) is the positive ADC input when the ADC multiplexer is set
TEMP
Rev. 1.1
Temperature
- Offset) /
C8051F93x-C8051F92x
C
Offset
- 25) +
( V at 25 Celsius)
Slope
Offset
Slope
( V / deg C)
83