C8051F121 Silicon Laboratories Inc, C8051F121 Datasheet - Page 307
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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
-
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Part Number:
C8051F121
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F121-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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Part Number:
C8051F121-GQR
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Part Number:
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X = Don’t care
*Note: SCA1-SCA0 and T1M bit definitions can be found in
X = Don’t care
*Note: SCA1-SCA0 and T1M bit definitions can be found in
Baud Rate
Baud Rate
230400
115200
230400
115200
Target
Target
57600
28800
14400
57600
28800
14400
(bps)
(bps)
9600
9600
2400
Table 22.4. Timer Settings for Standard Baud Rates Using the PLL
Table 22.5. Timer Settings for Standard Baud Rates Using the PLL
Baud Rate
Baud Rate
% Error
% Error
-0.01%
-0.01%
-0.47%
-0.01%
-0.01%
-0.01%
-0.01%
0.45%
0.22%
0.45%
0.45%
0.45%
0.22%
tor Divide
tor Divide
Oscilla-
Oscilla-
Factor
Factor
10464
20832
1736
3480
6912
1736
3480
5208
434
872
218
434
872
Frequency: 100.0 MHz
Frequency: 50.0 MHz
SYSCLK / 12
SYSCLK / 48
SYSCLK / 48
SYSCLK / 12
SYSCLK / 12
SYSCLK / 48
Timer Clock
Timer Clock
SYSCLK / 4
SYSCLK / 4
SYSCLK / 4
SYSCLK / 4
SYSCLK
SYSCLK
SYSCLK
Source
Rev. 1.4
Source
C8051F120/1/2/3/4/5/6/7
Section 23.1
Section 23.1
SCA1-SCA0
SCA1-SCA0
(pre-scale
(pre-scale
select)*
select)*
XX
XX
XX
01
01
00
10
10
01
01
00
00
10
C8051F130/1/2/3
.
.
T1M*
T1M*
1
0
0
0
0
0
1
1
0
0
0
0
0
Value (hex)
Value (hex)
Timer 1
Timer 1
Reload
Reload
0x6F
0x6F
0xB8
0x93
0x27
0x93
0x27
0x27
0x27
0x27
0x93
0x27
0x93
307
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