C8051F336-GMR Silicon Laboratories Inc, C8051F336-GMR Datasheet - Page 51

• Manufacturer Part Number: C8051F336-GMR
• Description: Microcontrollers (MCU) 16KB 10ADC 10DAC 768Ram MCU Lead Free
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F336-GMR

• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 16 KB
• Data Ram Size: 768 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 4
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-20
• 3rd Party Development Tools: KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F336DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• On-chip Dac: 10 bit
• Package: 20QFN
• Device Core: 8051
• Family Name: C8051F336
• Maximum Speed: 25 MHz
• Ram Size: 768 Byte
• Operating Temperature: -40 to 85 °C
• Lead Free Status / Rohs Status: Details

8. Temperature Sensor (C8051F336/8 only)
An on-chip temperature sensor is included on the C8051F336/8 which can be directly accessed via the
ADC multiplexer in single-ended configuration. To use the ADC to measure the temperature sensor, the
positive ADC mux channel should be configured to connect to the temperature sensor and the negative
ADC mux channel should be configured to connect to GND. The temperature sensor transfer function is
shown in Figure 8.1. The output voltage (V
correctly. The TEMPE bit in register REF0CN enables/disables the temperature sensor, as described in
SFR Definition 10.1. 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
“6. Electrical Characteristics” on page 27
sor.
Figure 8.1. Temperature Sensor Transfer Function
V
Temp
TEMP
C
=
= (V
(Slope
TEMP
TEMP
for the slope and offset parameters of the temperature sen-
x Temp
) is the positive ADC input when the ADC multiplexer is set
- Offset) /
Temperature
Rev.1.0
C
) +
Offset
Slope
Offset
(V at 0 Celsius)
Slope
C8051F336/7/8/9
(V / deg C)
Section
51