C8051F505-IQ Silicon Laboratories Inc, C8051F505-IQ Datasheet - Page 171
![IC 8051 MCU 32K FLASH 48-QFP](/photos/12/17/121714/c8051f505-iq_sml.jpg)
C8051F505-IQ
Manufacturer Part Number
C8051F505-IQ
Description
IC 8051 MCU 32K FLASH 48-QFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F50xr
Specifications of C8051F505-IQ
Program Memory Type
FLASH
Program Memory Size
32KB (32K x 8)
Package / Case
48-QFP
Mfg Application Notes
LIN Bootloader AppNote
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), 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
32-ch x 12-bit
Package
48PQFP
Device Core
8051
Family Name
C8051F50x
Maximum Speed
50 MHz
Operating Supply Voltage
2.5|3.3|5 V
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
336-1520
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F505-IQ
Manufacturer:
SLB
Quantity:
590
Company:
Part Number:
C8051F505-IQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F505-IQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
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SFR Definition 19.5. CLKMUL: Clock Multiplier
SFR Address = 0x97; SFR Page = 0x0F;
Notes: The maximum system clock is 50 MHz, and so the Clock Multiplier output should be scaled accordingly.
Name
Reset
Bit
4:2
1:0
Type
7
6
5
Bit
MULSEL[1:0] Clock Multiplier Input Select.
If Internal Oscillator x 2 or External Oscillator x 2 is selected using the MULSEL bits, MULDIV[2:0] is ignored.
MULDIV[2:0]
MULRDY
MULINIT
MULEN
MULEN
Name
R/W
7
0
MULINIT
Clock Multiplier Enable.
0: Clock Multiplier disabled.
1: Clock Multiplier enabled.
Clock Multiplier Initialize.
This bit is 0 when the Clock Multiplier is enabled. Once enabled, writing a 1 to this
bit will initialize the Clock Multiplier. The MULRDY bit reads 1 when the Clock Mul-
tiplier is stabilized.
Clock Multiplier Ready.
0: Clock Multiplier is not ready.
1: Clock Multiplier is ready (PLL is locked).
Clock Multiplier Output Scaling Factor.
000: Clock Multiplier Output scaled by a factor of 1.
001: Clock Multiplier Output scaled by a factor of 1.
010: Clock Multiplier Output scaled by a factor of 1.
011: Clock Multiplier Output scaled by a factor of 2/3*.
100: Clock Multiplier Output scaled by a factor of 2/4 (1/2).
101: Clock Multiplier Output scaled by a factor of 2/5*.
110: Clock Multiplier Output scaled by a factor of 2/6 (1/3).
111: Clock Multiplier Output scaled by a factor of 2/7*.
*Note: The Clock Multiplier output duty cycle is not 50% for these settings.
These bits select the clock supplied to the Clock Multiplier
MULSEL[1:0]
R/W
6
0
00
01
10
11
MULRDY
R
5
0
Selected Input Clock
External Oscillator
External Oscillator
Internal Oscillator
Internal Oscillator
Rev. 1.2
4
0
MULDIV[2:0]
Function
R/W
3
0
C8051F50x/F51x
2
0
Clock Multiplier Output
for MULDIV[2:0] = 000b
External Oscillator x 2
External Oscillator x 4
Internal Oscillator x 2
Internal Oscillator x 4
1
MULSEL[1:0]
0
R/W
0
0
171
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