C8051F121 Silicon Laboratories Inc, C8051F121 Datasheet - Page 4
![no-image](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_sml.jpg)
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
- Current page: 4 of 350
- Download datasheet (2Mb)
C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
8. DACs, 12-Bit Voltage Mode (C8051F12x Only) .................................................. 105
9. Voltage Reference ................................................................................................ 113
10. Comparators ......................................................................................................... 119
11. CIP-51 Microcontroller ......................................................................................... 127
12. Multiply And Accumulate (MAC0) ....................................................................... 165
4
8.1. DAC Output Scheduling.................................................................................. 105
8.2. DAC Output Scaling/Justification .................................................................... 106
9.1. Reference Configuration on the C8051F120/2/4/6 ......................................... 113
9.2. Reference Configuration on the C8051F121/3/5/7 ......................................... 115
9.3. Reference Configuration on the C8051F130/1/2/3 ......................................... 117
11.1.Instruction Set................................................................................................. 129
11.2.Memory Organization ..................................................................................... 133
11.3.Interrupt Handler............................................................................................. 154
11.4.Power Management Modes............................................................................ 163
12.1.Special Function Registers............................................................................. 165
12.2.Integer and Fractional Math............................................................................ 166
12.3.Operating in Multiply and Accumulate Mode .................................................. 167
12.4.Operating in Multiply Only Mode .................................................................... 167
12.5.Accumulator Shift Operations......................................................................... 167
12.6.Rounding and Saturation................................................................................ 168
12.7.Usage Examples ............................................................................................ 168
8.1.1. Update Output On-Demand ................................................................... 106
8.1.2. Update Output Based on Timer Overflow .............................................. 106
11.1.1.Instruction and CPU Timing ................................................................... 129
11.1.2.MOVX Instruction and Program Memory ............................................... 129
11.2.1.Program Memory ................................................................................... 133
11.2.2.Data Memory.......................................................................................... 135
11.2.3.General Purpose Registers.................................................................... 135
11.2.4.Bit Addressable Locations...................................................................... 135
11.2.5.Stack ..................................................................................................... 135
11.2.6.Special Function Registers .................................................................... 136
11.2.7.Register Descriptions ............................................................................. 151
11.3.1.MCU Interrupt Sources and Vectors ...................................................... 154
11.3.2.External Interrupts.................................................................................. 155
11.3.3.Interrupt Priorities................................................................................... 156
11.3.4.Interrupt Latency .................................................................................... 156
11.3.5.Interrupt Register Descriptions............................................................... 157
11.4.1.Idle Mode ............................................................................................... 163
11.4.2.Stop Mode.............................................................................................. 164
12.7.1.Multiply and Accumulate Example ......................................................... 168
12.7.2.Multiply Only Example............................................................................ 169
12.7.3.MAC0 Accumulator Shift Example ......................................................... 169
Rev. 1.4
Related parts for C8051F121
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![500SAAB8M00000ACF](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
SMD/C°/SINGLE-ENDED OUTPUT SILICON OSCILLATOR
Manufacturer:
Silicon Laboratories Inc
![SI3210MFT](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![4010-DAAKF_868](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
N/A N/A/SI4010 AES KEYFOB DEMO WITH LCD RX
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![4010-DASKF_868](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
N/A N/A/SI4010 SIMPLIFIED KEY FOB DEMO WITH LED RX
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![4432-SEB1 C 915](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
N/A/-40 TO 85 OC/EZLINK MODULE; F930/4432 HIGH BAND (REV E/B1)
Manufacturer:
Silicon Laboratories Inc
![4432-SEB1 D 470](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
EZLink Module; F930/4432 Low Band (rev e/B1)
Manufacturer:
Silicon Laboratories Inc
![4460-TCE10D434-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I°/4460 10 DBM RADIO TEST CARD 434 MHZ
Manufacturer:
Silicon Laboratories Inc
![4461-TSQ14D868-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I°/4461 14 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE20C460-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I°/4463 20 DBM RFSWITCH RADIO TEST CARD 460 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE20C868-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I°/4463 20 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE27F868-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I°/4463 27 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE30E915S-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I°/4463 SKYWORKS 30 DBM RADIO TEST CARD 915 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE30E915R-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
N/A N/A/-40 TO 85 OC/4463 RFMD 30 DBM RADIO TEST CARD 915 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TSQ20D169-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I°/4463 20 DBM RADIO TEST CARD 169 MHZ
Manufacturer:
Silicon Laboratories Inc