C8051F350 Silicon Laboratories Inc, C8051F350 Datasheet - Page 57

• Manufacturer Part Number: C8051F350
• Description: IC 8051 MCU 8K FLASH 32LQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F35xr

Specifications of C8051F350

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x24b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Data Bus Width: 8 bit
• Data Rom Size: 128 B
• On-chip Adc: 10 bit
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.7 V to 3.6 V
• Mounting Style: SMD/SMT
• Height: 1.4 mm
• Length: 7 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Width: 7 mm
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No RoHS Version Available

5.6.
ADC0 includes analog multiplexer circuitry with independent selection capability for the AIN+ and AIN-
inputs. Each input can be connected to one of ten possible input sources: AIN0.0 though AIN0.7, AGND, or
the on-chip temperature sensor circuitry (Figure 5.26). The ADC0MUX register (Figure 5.27) controls the
input mux selection for both input channels. The multiplexer configuration allows for measurement of sin-
gle-ended or differential signals. A single-ended measurement can be performed by connecting one of the
ADC inputs to AGND. Additionally, the temperature sensor can be measured in single-ended or differential
mode. The temperature sensor is automatically enabled when it is selected with the ADC multiplexer. See
Section “8. Temperature Sensor” on page 71
Analog Multiplexer
Temperature
Sensor
Figure 5.26. ADC0 Multiplexer Connections
Temp+
Temp-
AIN0.0
AIN0.1
AIN0.2
AIN0.3
AIN0.4
AIN0.5
AIN0.6
AIN0.7
AIN0.0
AIN0.1
AIN0.2
AIN0.3
AIN0.4
AIN0.5
AIN0.6
AIN0.7
AGND
AGND
for more details on the temperature sensor.
Rev. 0.4
C8051F350/1/2/3
AIN+
AIN-
ADC0MUX
ADC0
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