C8051F020-GQR Silicon Laboratories Inc, C8051F020-GQR Datasheet - Page 180
C8051F020-GQR
Manufacturer Part Number
C8051F020-GQR
Description
IC 8051 MCU 64K FLASH 100TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Specifications of C8051F020-GQR
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
64
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x8b, 8x12b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
For Use With
336-1200 - DEV KIT FOR F020/F021/F022/F023
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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C8051F020-GQR
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Silicon Laboratories Inc
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C8051F020/1/2/3
180
Bits7-0:
Bits7-0:
Note:
P4.7
P5.7
R/W
R/W
Bit7
Bit7
P4.[7:0]: Port4 Output Latch Bits.
Write - Output appears on I/O pins.
0: Logic Low Output.
1: Logic High Output (Open-Drain if corresponding P74OUT bit = 0). See Figure 17.20.
Read - Returns states of I/O pins.
0: P4.n pin is logic low.
1: P4.n pin is logic high.
Note: P4.7 (/WR), P4.6 (/RD), and P4.5 (ALE) can be driven by the External Data Memory Interface.
See
page 145
P5.[7:0]: Port5 Output Latch Bits.
Write - Output appears on I/O pins.
0: Logic Low Output.
1: Logic High Output (Open-Drain if corresponding P74OUT bit = 0). See Figure 17.20.
Read - Returns states of I/O pins.
0: P5.n pin is logic low.
1: P5.n pin is logic high.
P5.[7:0] can be driven by the External Data Memory Interface (as Address[15:8] in Non-multiplexed
mode). See
on page 145
Section “16. EXTERNAL DATA MEMORY INTERFACE AND ON-CHIP XRAM” on
P4.6
P5.6
R/W
R/W
Bit6
Bit6
for more information.
Section “16. EXTERNAL DATA MEMORY INTERFACE AND ON-CHIP XRAM”
for more information about the External Memory Interface.
P4.5
P5.5
R/W
R/W
Bit5
Bit5
Figure 17.21. P4: Port4 Data Register
Figure 17.22. P5: Port5 Data Register
P4.4
P5.4
R/W
R/W
Bit4
Bit4
Rev. 1.4
P4.3
P5.3
R/W
R/W
Bit3
Bit3
P4.2
P5.2
R/W
R/W
Bit2
Bit2
P4.1
P5.1
R/W
R/W
Bit1
Bit1
P4.0
P5.0
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
Reset Value
11111111
Reset Value
11111111
0x84
0x85
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