C8051F023R Silicon Laboratories Inc, C8051F023R Datasheet - Page 162
C8051F023R
Manufacturer Part Number
C8051F023R
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Specifications of C8051F023R
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
32
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, 8x10b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
336-1035-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F023R
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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C8051F020/1/2/3
The C8051F020/1/2/3 devices have a wide array of digital resources which are available through the four lower I/O
Ports: P0, P1, P2, and P3. Each of the pins on P0, P1, P2, and P3, can be defined as a General-Purpose I/O (GPIO) pin
or can be controlled by a digital peripheral or function (like UART0 or /INT1 for example), as shown in Figure 17.2.
The system designer controls which digital functions are assigned pins, limited only by the number of pins available.
This resource assignment flexibility is achieved through the use of a Priority Crossbar Decoder. Note that the state of
a Port I/O pin can always be read from its associated Data register regardless of whether that pin has been assigned to
a digital peripheral or behaves as GPIO. The Port pins on Port 1 can be used as Analog Inputs to ADC1.
An External Memory Interface which is active during the execution of a MOVX instruction whose target address
resides in off-chip memory can be active on either the lower Ports or the upper Ports. See
DATA MEMORY INTERFACE AND ON-CHIP XRAM” on page 145
Memory Interface.
The upper Ports (available on C8051F020/2) can be byte-accessed as GPIO pins.
162
Highest
Priority
Lowest
Priority
Latches
Port
T2, T2EX,
/SYSCLK
CNVSTR
T4,T4EX
Comptr.
Outputs
UART0
UART1
SMBus
T0, T1,
/INT0,
/INT1
PCA
P0
P1
P2
P3
SPI
(P0.0-P0.7)
(P1.0-P1.7)
(P2.0-P2.7)
(P3.0-P3.7)
Figure 17.2. Lower Port I/O Functional Block Diagram
8
8
8
8
2
4
2
2
6
2
8
XBR2, P1MDIN
XBR0, XBR1,
Crossbar
Decoder
To External
Registers
Priority
Rev. 1.4
Digital
Interface
Memory
(EMIF)
8
8
8
8
P0MDOUT, P1MDOUT,
P2MDOUT, P3MDOUT
Registers
for more information about the External
ADC1
Input
Cells
Cells
Cells
Cells
To
I/O
I/O
I/O
I/O
P0
P1
P2
P3
Section “16. EXTERNAL
External
Pins
P0.0
P0.7
P1.0
P1.7
P2.0
P2.7
P3.0
P3.7
Highest
Lowest
Priority
Priority
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