C8051F537-IT Silicon Laboratories Inc, C8051F537-IT Datasheet - Page 53
![IC 8051 MCU 2K FLASH 20TSSOP](/photos/12/46/124608/silicon_laboratories_inc-20-tssop_sml.jpg)
C8051F537-IT
Manufacturer Part Number
C8051F537-IT
Description
IC 8051 MCU 2K FLASH 20TSSOP
Manufacturer
Silicon Laboratories Inc
Series
C8051F53xr
Specifications of C8051F537-IT
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
2KB (2K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.25 V
Data Converters
A/D 16x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
20-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
336-1401
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F537-IT
Manufacturer:
Silicon Labs
Quantity:
135
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4.2. Temperature Sensor
An on-chip temperature sensor is included on the C8051F52x/F52xA/F53x/F53xA devices which can be
directly accessed via the ADC0 multiplexer. To use ADC0 to measure the temperature sensor, the ADC
multiplexer channel should be configured to connect to the temperature sensor. The temperature sensor
transfer function is shown in Figure 5.2. The output voltage (V
bits AD0MX[4:0] in register ADC0MX. The TEMPE bit in register REF0CN enables/disables the tempera-
ture sensor, as described in SFR Definition 5.1. 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 Table 5.1 for the slope and offset parameters of the temperature sensor.
Figure 4.2. Typical Temperature Sensor Transfer Function
V
Temp
TEMP
C
= (Slope x Temp
= (V
C8051F52x/F52xA/F53x/F53xA
TEMP
- Offset) / Slope
Rev. 1.3
Temperature
C
) + Offset
Offset ( V at 0 Celsius )
TEMP
) is the positive ADC input selected by
Slope ( V / deg C)
53
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