C8051F302 Silicon Laboratories Inc, C8051F302 Datasheet - Page 38

• Manufacturer Part Number: C8051F302
• Description: IC 8051 MCU 8K FLASH 11MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F30xr

Specifications of C8051F302

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 8
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 11-VQFN
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C, SMBus, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 8
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

C8051F300/1/2/3/4/5
38
Bits7-4:
Bits3-0:
AMX0N3 AMX0N2 AMX0N1 AMX0N0 AMX0P3
R/W
Bit7
Figure 5.6. AMX0SL: AMUX0 Channel Select Register (C8051F300/2)
AMX0N3-0: AMUX0 Negative Input Selection.
Note that when GND is selected as the Negative Input, ADC0 operates in Single-ended mode. For all
other Negative Input selections, ADC0 operates in Differential mode.
0000-1000b: ADC0 Negative Input selected per the chart below.
AMX0P3-0: AMUX0 Positive Input Selection.
0000-1001b: ADC0 Positive Input selected per the chart below.
1010-1111b: RESERVED.
AMX0N3-0
AMX0P3-0
R/W
Bit6
0000
0001
0010
0011
0100
0101
0110
1xxx
0000
0001
0010
0011
0100
0101
0110
1000
1001
0111
0111
R/W
Bit5
GND (ADC in Single-Ended Mode)
R/W
Bit4
ADC0 Negative Input
ADC0 Positive Input
Temperature Sensor
Rev. 2.3
VDD
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
R/W
Bit3
AMX0P2
R/W
Bit2
AMX0P1
R/W
Bit1
AMX0P0
R/W
Bit0
SFR Address:
00000000
Reset Value
0xBB