C8051F331-GMR Silicon Laboratories Inc, C8051F331-GMR Datasheet - Page 127
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C8051F331-GMR
Manufacturer Part Number
C8051F331-GMR
Description
IC 8051 MCU 8K FLASH 20QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F33xr
Specifications of C8051F331-GMR
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, 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
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-QFN
For Use With
336-1451 - ADAPTER PROGRAM TOOLSTICK F330336-1264 - DEV KIT FOR C8051F330/F331
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
C8051F331-GMR
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
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Bits7–0: Output Configuration Bits for P0.7–P0.0 (respectively): ignored if corresponding bit in regis-
Bits7–0: P0SKIP[7:0]: Port0 Crossbar Skip Enable Bits.
Bits7–0: P1.[7:0]
P1.7
R/W
R/W
R/W
Bit7
Bit7
Bit7
ter P0MDIN is logic 0.
0: Corresponding P0.n Output is open-drain.
1: Corresponding P0.n Output is push-pull.
(Note: When SDA and SCL appear on any of the Port I/O, each are open-drain regardless
of the value of P0MDOUT).
These bits select Port pins to be skipped by the Crossbar Decoder. Port pins used as ana-
log inputs (for ADC or Comparator) or used as special functions (VREF input, external oscil-
lator circuit, CNVSTR input) should be skipped by the Crossbar.
0: Corresponding P0.n pin is not skipped by the Crossbar.
1: Corresponding P0.n pin is skipped by the Crossbar.
Write - Output appears on I/O pins per Crossbar Registers.
0: Logic Low Output.
1: Logic High Output (high impedance if corresponding P1MDOUT.n bit = 0).
Read - Always reads ‘0’ if selected as analog input in register P1MDIN. Directly reads Port
pin when configured as digital input.
0: P1.n pin is logic low.
1: P1.n pin is logic high.
P1.6
R/W
R/W
R/W
Bit6
Bit6
Bit6
SFR Definition 14.5. P0MDOUT: Port0 Output Mode
SFR Definition 14.6. P0SKIP: Port0 Skip
P1.5
R/W
R/W
R/W
Bit5
Bit5
Bit5
SFR Definition 14.7. P1: Port1
P1.4
R/W
R/W
R/W
Bit4
Bit4
Bit4
Rev. 1.7
P1.3
R/W
R/W
R/W
Bit3
Bit3
Bit3
P1.2
R/W
R/W
R/W
Bit2
Bit2
Bit2
C8051F330/1/2/3/4/5
P1.1
R/W
R/W
R/W
Bit1
Bit1
Bit1
(bit addressable)
P1.0
R/W
R/W
R/W
Bit0
Bit0
Bit0
SFR Address:
SFR Address:
SFR Address:
00000000
00000000
Reset Value
Reset Value
Reset Value
11111111
0xA4
0xD4
0x90
131
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