C8051F046 Silicon Laboratories Inc, C8051F046 Datasheet - Page 268
C8051F046
Manufacturer Part Number
C8051F046
Description
IC 8051 MCU 32K FLASH 100TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F04xr
Specifications of C8051F046
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
CAN, EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
64
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
336-1158
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C8051F040/1/2/3/4/5/6/7
Timer1_OverflowRate
=
T1CLK
256 TH1
–
Equation 21.2. Timer 1 Overflow Rate
When Timers 2, 3, or 4 are selected as a baud rate source, the baud rate is generated as shown in
Equation 21.3.
Mode1_BaudRate
=
1 16
Timer234_OverflowRate
Equation 21.3. Mode 1 Baud Rate using Timer 2, 3, or 4
The overflow rate for Timer 2, 3, or 4 is determined by the clock source for the timer (TnCLK) and the 16-
bit reload value stored in the RCAPn register (n = 2, 3, or 4), as shown in Equation 21.4.
Timer234_OverflowRate
=
TnCLK
65536 RCAPn
–
Equation 21.4. Timer 2, 3, or 4 Overflow Rate
268
Rev. 1.5
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