C8051F131R Silicon Labs, C8051F131R Datasheet - Page 97

• Manufacturer Part Number: C8051F131R
• Description: 8-bit Microcontrollers - MCU 128kB 100MIPS 8448B RAM
• Manufacturer: Silicon Labs

Specifications of C8051F131R

• Product Category: 8-bit Microcontrollers - MCU
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 100 MHz
• Program Memory Size: 128 KB
• Data Ram Size: 8.25 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Package / Case: TQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 9
• Data Rom Size: 64 KB
• Interface Type: I2C, SMBus, SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 500
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V

Bits7–3: AD2SC4–0: ADC2 SAR Conversion Clock Period Bits.
Bit2:
Bits1–0: AMP2GN1–0: ADC2 Internal Amplifier Gain (PGA).
SFR Page:
SFR Address:
AD2SC4
R/W
Bit7
SAR Conversion clock is derived from system clock by the following equation, where
AD2SC refers to the 5-bit value held in AD2SC4–0, and CLK
ADC2 SAR clock (Note: the ADC2 SAR Conversion Clock should be less than or equal to
6 MHz).
AD2SC
UNUSED. Read = 0b; Write = don’t care.
00: Gain = 0.5
01: Gain = 1
10: Gain = 2
11: Gain = 4
2
0xBC
AD2SC3
R/W
Bit6
SFR Definition 7.3. ADC2CF: ADC2 Configuration
=
---------------------- - 1
CLK
SYSCLK
AD2SC2
R/W
Bit5
SAR2
–
AD2SC1
R/W
Bit4
Rev. 1.4
AD2SC0
R/W
Bit3
C8051F120/1/2/3/4/5/6/7
R/W
Bit2
-
C8051F130/1/2/3
AMP2GN1 AMP2GN0 11111000
SAR2
R/W
Bit1
refers to the desired
R/W
Bit0
Reset Value
97