C8051F023R Silicon Laboratories Inc, C8051F023R Datasheet - Page 176

IC 8051 MCU 64K FLASH 64TQFP

C8051F023R

Manufacturer Part Number
C8051F023R
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Datasheets

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
C8051F020/1/2/3
176
Bits7-0:
Note:
Bits7-0:
Note:
P3.7
R/W
R/W
Bit7
Bit7
P3.[7:0]: Port3 Output Latch Bits.
(Write - Output appears on I/O pins per XBR0, XBR1, XBR2, and XBR3 Registers)
0: Logic Low Output.
1: Logic High Output (open if corresponding P3MDOUT.n bit = 0).
(Read - Regardless of XBR0, XBR1, XBR2, and XBR3 Register settings).
0: P3.n pin is logic low.
1: P3.n pin is logic high.
P3.[7:0] can be driven by the External Data Memory Interface (as AD[7:0] in Multiplexed mode, or
as D[7:0] in Non-multiplexed mode). See
FACE AND ON-CHIP XRAM” on page 145
Interface.
P3MDOUT.[7:0]: Port3 Output Mode Bits.
0: Port Pin output mode is configured as Open-Drain.
1: Port Pin output mode is configured as Push-Pull.
SDA, SCL, and RX0 (when UART0 is in Mode 0) and RX1 (when UART1 is in Mode 0) are always
configured as Open-Drain when they appear on Port pins.
P3.6
R/W
R/W
Bit6
Bit6
Figure 17.18. P3MDOUT: Port3 Output Mode Register
P3.5
R/W
R/W
Bit5
Bit5
Figure 17.17. P3: Port3 Data Register
P3.4
R/W
R/W
Bit4
Bit4
Rev. 1.4
P3.3
Section “16. EXTERNAL DATA MEMORY INTER-
R/W
R/W
Bit3
Bit3
for more information about the External Memory
P3.2
R/W
R/W
Bit2
Bit2
P3.1
R/W
R/W
Bit1
Bit1
(bit addressable)
P3.0
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
00000000
Reset Value
11111111
Reset Value
0xB0
0xA7

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