C8051F121 Silicon Laboratories Inc, C8051F121 Datasheet - Page 14
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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C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
18. Port Input/Output
19. System Management Bus / I2C Bus (SMBus0)
20. Enhanced Serial Peripheral Interface (SPI0)
21. UART0
22. UART1
23. Timers
24. Programmable Counter Array
25. JTAG (IEEE 1149.1)
14
Table 18.1. Port I/O DC Electrical Characteristics ................................................. 236
Table 19.1. SMB0STA Status Codes and States .................................................. 270
Table 20.1. SPI Slave Timing Parameters ............................................................ 285
Table 21.1. UART0 Modes .................................................................................... 288
Table 21.2. Oscillator Frequencies for Standard Baud Rates ............................... 295
Table 22.1. Timer Settings for Standard Baud Rates
Table 22.2. Timer Settings for Standard Baud Rates
Table 22.3. Timer Settings for Standard Baud Rates
Table 22.4. Timer Settings for Standard Baud Rates Using the PLL .................... 307
Table 22.5. Timer Settings for Standard Baud Rates Using the PLL .................... 307
Table 24.1. PCA Timebase Input Options ............................................................. 326
Table 24.2. PCA0CPM Register Settings for PCA Capture/Compare Modules .... 329
Table 25.1. Boundary Data Register Bit Definitions .............................................. 342
Using The Internal 24.5 MHz Oscillator ............................................... 305
Using an External 25.0 MHz Oscillator ................................................ 306
Using an External 22.1184 MHz Oscillator .......................................... 306
Rev. 1.4
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