C8051F902-GM Silicon Laboratories Inc, C8051F902-GM Datasheet - Page 85

• Manufacturer Part Number: C8051F902-GM
• Description: IC MCU 8BIT 8KB FLASH 24QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F9xxr

Specifications of C8051F902-GM

• Program Memory Type: FLASH
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 24-QFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 3.6 V
• Data Converters: A/D 15x10/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F9x
• Core: 8051
• Data Ram Size: 768 B
• Interface Type: UART
• Maximum Clock Frequency: 25 MHz
• Number Of Timers: 4
• Operating Supply Voltage: 0.9 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F912DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit
• Package: 24QFN EP
• Device Core: 8051
• Family Name: C8051F90x
• Maximum Speed: 25 MHz
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1848-5

SFR Definition 5.15. REF0CN: Voltage Reference Control
SFR Page = 0x0; SFR Address = 0xD1
5.14. Voltage Reference Electrical Specifications
See Table 4.12 on page 56 for detailed Voltage Reference Electrical Specifications.
Name
Reset
Type
7:6
4:3
Bit
Bit
5
2
1
0
REFGND Analog Ground Reference.
Unused
TEMPE
Unused
REFOE
REFSL
Name
R
7
0
Unused.
Read = 00b; Write = Don’t Care.
Selects the ADC0 ground reference.
0: The ADC0 ground reference is the GND pin.
1: The ADC0 ground reference is the P0.1/AGND pin.
Voltage Reference Select.
Selects the ADC0 voltage reference.
00: The ADC0 voltage reference is the P0.0/VREF pin.
01: The ADC0 voltage reference is the VDD/DC+ pin.
10: The ADC0 voltage reference is the internal 1.8 V digital supply voltage.
11: The ADC0 voltage reference is the internal 1.65 V high speed voltage reference.
Temperature Sensor Enable.
Enables/Disables the internal temperature sensor.
0: Temperature Sensor Disabled.
1: Temperature Sensor Enabled.
Unused.
Read = 0b; Write = Don’t Care.
Internal Voltage Reference Output Enable.
Connects/Disconnects the internal voltage reference to the P0.0/VREF pin.
0: Internal 1.68 V Precision Voltage Reference disabled and not connected to
P0.0/VREF.
1: Internal 1.68 V Precision Voltage Reference enabled and connected to
P0.0/VREF.
R
6
0
REFGND
R/W
5
0
R/W
Rev. 1.0
4
1
REFSL
C8051F91x-C8051F90x
Function
R/W
3
1
TEMPE
R/W
2
0
R
1
0
REFOE
R/W
0
0
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