C8051F338-GM Silicon Laboratories Inc, C8051F338-GM Datasheet - Page 51
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C8051F338-GM
Manufacturer Part Number
C8051F338-GM
Description
IC MCU 16K FLASH 24QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F33xr
Specifications of C8051F338-GM
Program Memory Type
FLASH
Program Memory Size
16KB (16K x 8)
Package / Case
24-QFN
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
21
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F3x
Core
8051
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
I2C/SMBus/SPI/UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
21
Number Of Timers
4
Operating Supply Voltage
2.7 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F336DK
Minimum Operating Temperature
- 40 C
On-chip Adc
16-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1427-5
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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
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