C8051F131R Silicon Labs, C8051F131R Datasheet - Page 62
![no-image](/images/no-image-200.jpg)
C8051F131R
Manufacturer Part Number
C8051F131R
Description
8-bit Microcontrollers - MCU 128kB 100MIPS 8448B RAM
Manufacturer
Silicon Labs
Datasheet
1.C8051F133R.pdf
(350 pages)
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
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C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
62
Bits7–3: AD0SC4–0: ADC0 SAR Conversion Clock Period Bits.
Bits2–0: AMP0GN2–0: ADC0 Internal Amplifier Gain (PGA).
SFR Page:
SFR Address:
AD0SC4
R/W
Bit7
The SAR Conversion clock is derived from system clock by the following equation, where
AD0SC refers to the 5-bit value held in AD0SC4-0, and CLK
SAR clock (Note: the ADC0 SAR Conversion Clock should be less than or equal to
2.5 MHz).
When the AD0SC bits are equal to 00000b, the SAR Conversion clock is equal to SYSCLK
to facilitate faster ADC conversions at slower SYSCLK speeds.
000: Gain = 1
001: Gain = 2
010: Gain = 4
011: Gain = 8
10x: Gain = 16
11x: Gain = 0.5
AD0SC
0
0xBC
AD0SC3
R/W
Bit6
SFR Definition 5.3. ADC0CF: ADC0 Configuration
=
------------------------------- - 1
2 C
AD0SC2
LK
SYSCLK
R/W
Bit5
SAR0
AD0SC1
R/W
Bit4
–
AD0SC0 AMP0GN2 AMP0GN1 AMP0GN0 11111000
Rev. 1.4
R/W
Bit3
R/W
Bit2
AD0SC 00000b
SAR0
R/W
Bit1
refers to the desired ADC0
R/W
Bit0
Reset Value
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