C8051F500-IM Silicon Laboratories Inc, C8051F500-IM Datasheet - Page 175
![IC 8051 MCU 64K FLASH 48-QFN](/photos/12/36/123639/c8051f500-im_sml.jpg)
C8051F500-IM
Manufacturer Part Number
C8051F500-IM
Description
IC 8051 MCU 64K FLASH 48-QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F50xr
Specifications of C8051F500-IM
Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
48-QFN
Mfg Application Notes
LIN Bootloader AppNote
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), CAN, LIN, SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
40
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.25 V
Data Converters
A/D 32x12b
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
40
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
336-1530 - ADAPTER PROG TOOLSTICK F500336-1529 - PLATFORM PROG TOOLSTCK F500336-1527 - KIT DEV FOR C8051F50X336-1526 - BOARD PROTOTYPE W/C8051F500
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1511-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F500-IM
Manufacturer:
Silicon Labs
Quantity:
135
Part Number:
C8051F500-IMR
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
- Current page: 175 of 312
- Download datasheet (3Mb)
19.4.2. External RC Example
If an RC network is used as an external oscillator source for the MCU, the circuit should be configured as
shown in Figure 19.1, Option 2. The capacitor should be no greater than 100 pF; however for very small
capacitors, the total capacitance may be dominated by parasitic capacitance in the PCB layout. To deter-
mine the required External Oscillator Frequency Control value (XFCN) in the OSCXCN Register, first
select the RC network value to produce the desired frequency of oscillation, according to Equation , where
f = the frequency of oscillation in MHz, C = the capacitor value in pF, and R = the pull-up resistor value in
k .
For example: If the frequency desired is 100 kHz, let R = 246 k and C = 50 pF:
f = 1.23(10
Referring to the table in SFR Definition 19.6, the required XFCN setting is 010b.
19.4.3. External Capacitor Example
If a capacitor is used as an external oscillator for the MCU, the circuit should be configured as shown in
Figure 19.1, Option 3. The capacitor should be no greater than 100 pF; however for very small capacitors,
the total capacitance may be dominated by parasitic capacitance in the PCB layout. To determine the
required External Oscillator Frequency Control value (XFCN) in the OSCXCN Register, select the capaci-
tor to be used and find the frequency of oscillation according to Equation 19.2, where f = the frequency of
oscillation in MHz, C = the capacitor value in pF, and V
Figure 19.3. External 32.768 kHz Quartz Crystal Oscillator Connection Diagram
3
)/RC = 1.23(10
22pF*
* Capacitor values depend on
Equation 19.1. RC Mode Oscillator Frequency
3
)/[246 x 50] = 0.1 MHz = 100 kHz
crystal specifications
32.768 kHz
10M
f
=
1.23 10
Rev. 1.2
22pF*
DD
3
= the MCU power supply in Volts.
R C
XTAL1
XTAL2
C8051F50x/F51x
175
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