C8051F131R Silicon Labs, C8051F131R Datasheet - Page 295

• 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

Notes:
Frequency (MHz)
1. Assumes SMOD0 = 1 and T1M = 1.
2. Numbers in parenthesis show the actual baud rate.
System Clock
99.5328
49.7664
99.5328
49.7664
99.5328
49.7664
22.1184
11.0592
22.1184
11.0592
22.1184
11.0592
18.432
3.6864
1.8432
18.432
3.6864
1.8432
18.432
3.6864
1.8432
100.0
100.0
100.0
50.0
24.0
50.0
24.0
50.0
24.0
Table 21.2. Oscillator Frequencies for Standard Baud Rates
Divide Factor
10416
10368
3472
3456
1744
1728
5216
5184
2496
2304
1920
1152
864
864
432
432
208
192
160
832
768
640
348
128
384
192
96
32
16
64
Timer 1 Reload
Value
0xCA
0xCA
0xCC
0xFE
0xD0
0xD8
0xE8
0xFC
0xB8
0xE8
0xE5
0xE5
0xF3
0xF4
0xF6
0xFA
0xFF
0x27
0x28
0x93
0x94
0xF8
0x64
0x70
0x88
0xF4
Rev. 1.4
-
-
-
-
1
C8051F120/1/2/3/4/5/6/7
Timer 2, 3, or
4 Reload
0xFFCC
0xFEBA
0xFEBC
0xFFCA
0xFFCA
0xFFFE
0xFFD0
0xFFD8
0xFFFC
0xFFE5
0xFFE5
0xFFF3
0xFFF4
0xFFF6
0xFFFA
0xFFFF
0xFFE8
0xFFF8
0xFD75
0xFD78
0xFFB8
0xFFE8
0xFFF4
0xFF27
0xFF28
0xFF93
0xFF94
0xFF64
0xFF70
0xFF88
Value
C8051F130/1/2/3
Resulting Baud Rate (Hz)
115200 (115741)
115200 (115741)
115200 (115384)
28800 (28802)
28800 (28670)
28800 (28846)
9600 (9601)
9600 (9586)
9600 (9615)
115200
115200
115200
115200
115200
115200
115200
28800
28800
28800
28800
28800
28800
28800
9600
9600
9600
9600
9600
9600
9600
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