C8051F351 Silicon Laboratories Inc, C8051F351 Datasheet - Page 106
C8051F351
Manufacturer Part Number
C8051F351
Description
IC 8051 MCU 8K FLASH 28MLP
Manufacturer
Silicon Laboratories Inc
Series
C8051F35xr
Specifications of C8051F351
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
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
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
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Manufacturer
Quantity
Price
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Part Number:
C8051F351-GM
Manufacturer:
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Quantity:
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C8051F350/1/2/3
106
Bit 7:
Bits 6-4: IN1SL2-0: /INT1 Port Pin Selection Bits
Bit 3:
Bits 2-0: INT0SL2-0: /INT0 Port Pin Selection Bits
IN1PL
R/W
Bit7
IN1PL: /INT1 Polarity
0: /INT1 input is active low.
1: /INT1 input is active high.
These bits select which Port pin is assigned to /INT1. Note that this pin assignment is inde-
pendent of the Crossbar; /INT1 will monitor the assigned Port pin without disturbing the
peripheral that has been assigned the Port pin via the Crossbar. The Crossbar will not
assign the Port pin to a peripheral if it is configured to skip the selected pin (accomplished by
setting to ‘1’ the corresponding bit in register P0SKIP).
IN0PL: /INT0 Polarity
0: /INT0 interrupt is active low.
1: /INT0 interrupt is active high.
These bits select which Port pin is assigned to /INT0. Note that this pin assignment is inde-
pendent of the Crossbar. /INT0 will monitor the assigned Port pin without disturbing the
peripheral that has been assigned the Port pin via the Crossbar. The Crossbar will not
assign the Port pin to a peripheral if it is configured to skip the selected pin (accomplished by
setting to ‘1’ the corresponding bit in register P0SKIP).
IN1SL2-0
IN0SL2-0
IN1SL2
R/W
Bit6
000
001
010
100
101
000
001
010
100
101
011
110
111
011
110
111
Figure 12.5. IT01CF: INT0/INT1 Configuration Register
Note: Refer to Figure 22.4 for INT0/1 edge- or level-sensitive interrupt selection.
IN1SL1
/INT1 Port Pin
/INT0 Port Pin
R/W
Bit5
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
IN1SL0
R/W
Bit4
Rev. 0.4
IN0PL
R/W
Bit3
IN0SL2
R/W
Bit2
IN0SL1
R/W
Bit1
SFR Address:
IN0SL0
R/W
Bit0
0xE4
00000001
Reset Value
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