C8051F504-IQ Silicon Laboratories Inc, C8051F504-IQ Datasheet - Page 245
![IC 8051 MCU 32K FLASH 48-QFP](/photos/12/36/123620/c8051f504-iq_sml.jpg)
C8051F504-IQ
Manufacturer Part Number
C8051F504-IQ
Description
IC 8051 MCU 32K FLASH 48-QFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F50xr
Specifications of C8051F504-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), 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
32-ch x 12-bit
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
336-1518
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F504-IQ
Manufacturer:
Silicon Labs
Quantity:
135
Company:
Part Number:
C8051F504-IQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
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Company:
Part Number:
C8051F504-IQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
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24.2. Data Format
UART0 has a number of available options for data formatting. Data transfers begin with a start bit (logic
low), followed by the data bits (sent LSB-first), a parity or extra bit (if selected), and end with one or two
stop bits (logic high). The data length is variable between 5 and 8 bits. A parity bit can be appended to the
data, and automatically generated and detected by hardware for even, odd, mark, or space parity. The stop
bit length is selectable between 1 and 2 bit times, and a multi-processor communication mode is available
for implementing networked UART buses. All of the data formatting options can be configured using the
SMOD0 register, shown in SFR Definition 24.2. Figure 24.2 shows the timing for a UART0 transaction
without parity or an extra bit enabled. Figure 24.3 shows the timing for a UART0 transaction with parity
enabled (PE0 = 1). Figure 24.4 is an example of a UART0 transaction when the extra bit is enabled
(XBE0 = 1). Note that the extra bit feature is not available when parity is enabled, and the second stop bit
is only an option for data lengths of 6, 7, or 8 bits.
SPACE
SPACE
MARK
MARK
BIT TIMES
BIT TIMES
SPACE
MARK
BIT TIMES
START
START
BIT
BIT
START
Figure 24.2. UART0 Timing Without Parity or Extra Bit
BIT
D
D
Figure 24.4. UART0 Timing With Extra Bit
0
0
Figure 24.3. UART0 Timing With Parity
D
0
D
D
1
1
N bits; N = 5, 6, 7, or 8
N bits; N = 5, 6, 7, or 8
D
1
N bits; N = 5, 6, 7, or 8
Rev. 1.2
D
D
N-2
N-2
D
N-2
D
D
N-1
N-1
C8051F50x/F51x
D
N-1
PARITY
EXTRA
STOP
BIT 1
STOP
STOP
BIT 1
BIT 1
Optional
(6,7,8 bit
STOP
BIT 2
Data)
Optional
Optional
(6,7,8 bit
(6,7,8 bit
STOP
STOP
BIT 2
Data)
BIT 2
Data)
245
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