C8051F502-IMR Silicon Laboratories Inc, C8051F502-IMR Datasheet - Page 169
C8051F502-IMR
Manufacturer Part Number
C8051F502-IMR
Description
MCU 8-Bit C8051F50x 8051 CISC 64KB Flash 2.5V/3.3V/5V 32-Pin QFN EP T/R
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051F502-IM.pdf
(312 pages)
Specifications of C8051F502-IMR
Package
32QFN EP
Device Core
8051
Family Name
C8051F50x
Maximum Speed
50 MHz
Ram Size
4.25 KB
Program Memory Size
64 KB
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Program Memory Type
Flash
Number Of Programmable I/os
25
Interface Type
I2C/SPI/UART
On-chip Adc
32-chx12-bit
Operating Temperature
-40 to 125 °C
Number Of Timers
4
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SFR Definition 19.3. OSCICRS: Internal Oscillator Coarse Calibration
SFR Address = 0xA2; SFR Page = 0x0F;
SFR Definition 19.4. OSCIFIN: Internal Oscillator Fine Calibration
SFR Address = 0x9E; SFR Page = 0x0F;
Reset
Reset
Name
Bit
6:0
Bit
7:6
5:0
Type
Type
7
Bit
Bit
OSCIFIN[5:0] Internal Oscillator Fine Calibration Bits.
OSCICRS[6:0]
Unused
Name
Unused
Name
R
R
7
0
7
0
Read = 00b; Write = Don’t Care
These bits are fine adjustment for the internal oscillator period. The reset value is
factory calibrated to generate an internal oscillator frequency of 24 MHz.
Varies
Read = 0; Write = Don’t Care
Internal Oscillator Coarse Calibration Bits.
These bits determine the internal oscillator period. When set to 0000000b, the
internal oscillator operates at its slowest setting. When set to 1111111b, the inter-
nal oscillator operates at its fastest setting. The reset value is factory calibrated
to generate an internal oscillator frequency of 24 MHz.
R
0
6
6
Varies
Varies
5
5
Varies
Varies
Rev. 1.2
4
4
OSCICRS[6:0]
Function
Varies
Varies
Function
R/W
3
3
OSCIFIN[5:0]
R/W
C8051F50x/F51x
Varies
Varies
2
2
Varies
Varies
1
1
Varies
Varies
0
0
169
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