C8051F351-GM Silicon Laboratories Inc, C8051F351-GM Datasheet - Page 217
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C8051F351-GM
Manufacturer Part Number
C8051F351-GM
Description
IC 8051 MCU 8K FLASH 28MLP
Manufacturer
Silicon Laboratories Inc
Series
C8051F35xr
Specifications of C8051F351-GM
Program Memory Type
FLASH
Program Memory Size
8KB (8K x 8)
Package / Case
28-MLP
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
17
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x24b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F3x
Core
8051
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
I2C/SMBus/SPI/UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
17
Number Of Timers
4
Operating Supply Voltage
2.7 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F350DK
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 24-bit
On-chip Dac
2-ch x 8-bit
Package
28QFN
Device Core
8051
Family Name
C8051F35x
Maximum Speed
50 MHz
Data Rom Size
128 B
Height
0.88 mm
Length
5 mm
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Width
5 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1083 - DEV KIT FOR F350/351/352/353
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1271
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F351-GM
Manufacturer:
SiliconL
Quantity:
5
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23.2.4. Frequency Output Mode
Frequency Output Mode produces a programmable-frequency square wave on the module’s associated
CEXn pin. The capture/compare module high byte holds the number of PCA clocks to count before the out-
put is toggled. The frequency of the square wave is then defined by Equation 23.1.
Where F
PCA0MD. The lower byte of the capture/compare module is compared to the PCA counter low byte; on a
match, CEXn is toggled and the offset held in the high byte is added to the matched value in PCA0CPLn.
Frequency Output Mode is enabled by setting the ECOMn, TOGn, and PWMn bits in the PCA0CPMn reg-
ister.
Note: A value of 0x00 in the PCA0CPHn register is equal to 256 for this equation.
PCA0CPLn
Write to
Reset
PCA0CPHn
PCA
Write to
is the frequency of the clock selected by the CPS2–0 bits in the PCA mode register,
0
ENB
ENB
1
Equation 23.1. Square Wave Frequency Output
W
P
M
1
6
n
x
Figure 23.7. PCA Frequency Output Mode
E
C
O
M
n
PCA0CPMn
C
A
P
P
n
0 0 0
C
A
P
N
n
M
A
T
n
O
G
T
n
W
P
M
n
E
C
C
F
n
x
PCA Timebase
F
CEXn
Enable
=
Comparator
PCA0CPLn
Rev. 1.1
---------------------------------------- -
2 PCA 0 CPHn
PCA0L
8-bit
×
F
PCA
match
Enable
Adder
8-bit Adder
Toggle
C8051F350/1/2/3
TOGn
0
1
CEXn
PCA0CPHn
Crossbar
Port I/O
217
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