C8051F503-IM Silicon Laboratories Inc, C8051F503-IM Datasheet - Page 102
![IC 8051 MCU 64K FLASH 32-QFN](/photos/12/17/121700/c8051f503-im_sml.jpg)
C8051F503-IM
Manufacturer Part Number
C8051F503-IM
Description
IC 8051 MCU 64K FLASH 32-QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F50xr
Datasheets
1.C8051F507-IM.pdf
(312 pages)
2.C8051F503-IM.pdf
(1 pages)
3.C8051F503-IM.pdf
(312 pages)
Specifications of C8051F503-IM
Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
32-QFN
Mfg Application Notes
LIN Bootloader AppNote
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
25
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.25 V
Data Converters
A/D 25x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Processor Series
C8051F5x
Core
8051
Data Bus Width
8 bit
Data Ram Size
4.25 KB
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F500DK
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 32 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1527 - KIT DEV FOR C8051F50X
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1517-5
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C8051F50x/F51x
SFR Page
Stack SFR's
0x0
SFRPAGE
(SPI0DAT)
SFRNEXT
SFRLAST
Figure 13.2. SFR Page Stack While Using SFR Page 0x0 To Access SPI0DAT
While CIP-51 executes in-line code (writing values to SPI0DAT in this example), the CAN0 Interrupt
occurs. The CIP-51 vectors to the CAN0 ISR and pushes the current SFR Page value (SFR Page 0x00)
into SFRNEXT in the SFR Page Stack. The SFR page needed to access CAN’s SFRs is then automatically
placed in the SFRPAGE register (SFR Page 0x0C). SFRPAGE is considered the “top” of the SFR Page
Stack. Software can now access the CAN0 SFRs. Software may switch to any SFR Page by writing a new
value to the SFRPAGE register at any time during the CAN0 ISR to access SFRs that are not on SFR
Page 0x0C. See Figure 13.3.
102
Rev. 1.2
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