C8051F347-GQ Silicon Laboratories Inc, C8051F347-GQ Datasheet - Page 251
C8051F347-GQ
Manufacturer Part Number
C8051F347-GQ
Description
IC 8051 MCU FLASH 32K 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F34xr
Datasheets
1.C8051F349-GQ.pdf
(276 pages)
2.C8051F347-GQ.pdf
(1 pages)
3.C8051F347-GQ.pdf
(296 pages)
Specifications of C8051F347-GQ
Program Memory Type
FLASH
Program Memory Size
32KB (32K x 8)
Package / Case
32-LQFP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
25
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 21x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F3x
Core
8051
Data Bus Width
8 bit
Data Ram Size
3.25 KB
Interface Type
I2C/SMBus/SPI/UART/USB
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Operating Supply Voltage
2.7 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
KSK-SL-F34X, KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F340DK
Minimum Operating Temperature
- 40 C
On-chip Adc
17-ch x 10-bit
No. Of I/o's
25
Ram Memory Size
2304Byte
Cpu Speed
25MHz
No. Of Timers
4
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1748 - ADAPTER TOOLSTICK FOR C8051F34X770-1006 - ISP 4PORT FOR SILABS C8051F MCU
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1305
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F347-GQ
Manufacturer:
LELON
Quantity:
30 000
Company:
Part Number:
C8051F347-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F347-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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21.3.3. USB Start-of-Frame Capture
When T3CE = ‘1’, Timer 3 will operate in one of two special capture modes. The capture event can be
selected between a USB Start-of-Frame (SOF) capture, and a Low-Frequency Oscillator (LFO) Rising
Edge capture, using the T3CSS bit. The USB SOF capture mode can be used to calibrate the system clock
or external oscillator against the known USB host SOF clock. The LFO rising-edge capture mode can be
used to calibrate the internal Low-Frequency Oscillator against the internal High-Frequency Oscillator or
an external clock source. When T3SPLIT = ‘0’, Timer 3 counts up and overflows from 0xFFFF to 0x0000.
Each time a capture event is received, the contents of the Timer 3 registers (TMR3H:TMR3L) are latched
into the Timer 3 Reload registers (TMR3RLH:TMR3RLL). A Timer 3 interrupt is generated if enabled.
External Clock / 8
SYSCLK / 12
SYSCLK
H
T
F
3
Figure 21.10. Timer 3 Capture Mode (T3SPLIT = ‘0’)
T
F
3
L
USB Start-of-Frame (SOF)
Low-Frequency Oscillator
TMR3CN
E
N
T
F
3
L
T
3
C
E
S
P
T
3
L
T
I
Falling Edge
T
R
3
T
C
S
S
3
C
T
3
X
L
K
0
1
C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
M
T
3
H
M
T
3
L
0
1
CKCON
M
T
2
H
T
M
2
L
M
T
1
M
T
0
C
S
A
1
T3CSS
TR3
S
C
A
0
0
1
Rev. 1.3
Enable
Capture
TCLK
TMR3RLL TMR3RLH
TMR3L
Interrupt
TMR3H
To ADC
251
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