C8051F121 Silicon Laboratories Inc, C8051F121 Datasheet - Page 295
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C8051F121
Manufacturer Part Number
C8051F121
Description
IC 8051 MCU FLASH 128K 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F12xr
Specifications of C8051F121
Core Processor
8051
Core Size
8-Bit
Speed
100MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
32
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x8b, 8x12b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F121
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F121-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F121-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F121R
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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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
295
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