C8051F351 Silicon Laboratories Inc, C8051F351 Datasheet - Page 68

• Manufacturer Part Number: C8051F351
• Description: IC 8051 MCU 8K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F35xr

Specifications of C8051F351

• 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: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

C8051F350/1/2/3
68
NOTE: Modification of this register is not necessary in most applications. The appropriate circuitry is
Bits7-2:
Bit1:
Bit0:
Bit7
R
-
enabled when it is needed by a peripheral.
Unused. Read = 000000b; Write = don’t care.
BIASE: Internal Oscillator Bias Enable.
This bit is ORed with the Internal Oscillator Enable bit to enable the internal oscillator bias
generator.
0: Internal Oscillator Bias enable determined by Internal Oscillator Enable bit.
1: Internal Oscillator Bias Generator On.
REFBE: Internal Reference Bias Enable Bit.
This bit is ORed with the Enable bits for ADC0, IDAC0, IDAC1, and the Clock Multiplier to
enable the internal bandgap generator.
0: Internal Reference Bias enable determined by individual component.
1: Internal Reference Bias enabled.
Bit6
R
-
Figure 7.2. REF0CN: Reference Control Register
Bit5
R
-
Bit4
R
-
Rev. 0.4
Bit3
R
-
Bit2
R
-
BIASE
R/W
Bit1
SFR Address:
REFBE
R/W
Bit0
0xD1
00000000
Reset Value