C8051F001R Silicon Laboratories Inc, C8051F001R Datasheet - Page 104
C8051F001R
Manufacturer Part Number
C8051F001R
Description
IC 8051 MCU 32K FLASH 48TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F00xr
Specifications of C8051F001R
Core Processor
8051
Core Size
8-Bit
Speed
20MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x12b, D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TQFP, 48-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
336-1001-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F001R
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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not affect the push-pull Port I/O. Furthermore, the weak pullup is turned off on an open-drain output that is driving
a 0 to avoid unnecessary power dissipation.
The third and final step is to initialize the individual resources selected using the appropriate setup registers.
Initialization procedures for the various digital resources may be found in the detailed explanation of each available
function. The reset state of each register is shown in the figures that describe each individual register.
Highest
Lowest
Priority
Priority
Latches
Port
WEAKPUD
PUSH-PULL
/PORT-OUTENABLE
PORT-OUTPUT
PORT-INPUT
T0, T1, T2,
T2EX,
/INT0,
/INT1
/SYSCLK
CNVSTR
Comptr.
Outputs
SMBus
UART
P0
P1
P2
P3
PCA
SPI
(P0.0-P0.7)
(P1.0-P1.7)
(P2.0-P2.7)
(P3.0-P3.7)
Figure 15.1. Port I/O Functional Block Diagram
8
8
8
8
2
4
2
6
2
6
Figure 15.2. Port I/O Cell Block Diagram
XBR2 Registers
XBR0, XBR1,
Rev. 1.7
Crossbar
Decoder
Priority
Digital
VDD
8
8
8
PRT0CF, PRT1CF,
PRT2CF Registers
PRT3CF
Register
DGND
Cells
Cells
Cells
Cells
VDD
I/O
I/O
I/O
I/O
P0
P1
P2
P3
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
VDD
(WEAK)
External
Pins
P0.0
P0.7
P1.0
P1.7
P2.0
P2.7
P3.0
P3.7
PORT
PAD
Highest
Priority
Lowest
Priority
104
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