C8051F131R Silicon Labs, C8051F131R Datasheet - Page 195

• 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

–40 to +85 °C unless otherwise specified
*Note: The maximum operating frequency of the C8051F124/5/6/7 is 50 MHz
Bits 7–6: UNUSED: Read = 00b; Write = don’t care.
Bits 5–4: PLLICO1-0: PLL Current-Controlled Oscillator Control Bits.
Bits 3–0: PLLLP3-0: PLL Loop Filter Control Bits.
R/W
Bit7
(Divided Reference Frequency)
-
PLL Output Frequency
Selection is based on the desired output frequency, according to the following table:
Selection is based on the divided PLL reference clock, according to the following table:
Input Frequency
Divided PLL Reference Clock
Parameter
R/W
Bit6
-
PLL Output Clock
12.2–19.5 MHz
7.8–12.5 MHz
65–100 MHz
PLLICO1 PLLICO0
Table 14.2. PLL Frequency Characteristics
45–80 MHz
30–60 MHz
25–50 MHz
19–30 MHz
SFR Definition 14.8. PLL0FLT: PLL Filter
5–8 MHz
R/W
Bit5
R/W
Bit4
PLLLP3
Rev. 1.4
Conditions
R/W
Bit3
C8051F120/1/2/3/4/5/6/7
PLLLP2
R/W
Bit2
PLLICO1-0
PLLLP3-0
0001
0011
0111
1111
00
01
10
11
C8051F130/1/2/3
PLLLP1
Min
25
5
R/W
Bit1
Typ
SFR Address:
PLLLP0 00110001
SFR Page:
R/W
Bit0
100*
Max
30
0x8F
F
Reset Value
Units
MHz
MHz
195