C8051F023R Silicon Laboratories Inc, C8051F023R Datasheet - Page 173

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
Bits7-0:
Bits7-0:
Note:
P0.7
R/W
R/W
Bit7
Bit7
P0.[7:0]: Port0 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 P0MDOUT.n bit = 0).
(Read - Regardless of XBR0, XBR1, XBR2, and XBR3 Register settings).
0: P0.n pin is logic low.
1: P0.n pin is logic high.
Note: P0.7 (/WR), P0.6 (/RD), and P0.5 (ALE) can be driven by the External Data Memory Interface.
See
page 145
for External Memory accesses.
P0MDOUT.[7:0]: Port0 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.
Section “16. EXTERNAL DATA MEMORY INTERFACE AND ON-CHIP XRAM” on
P0.6
R/W
R/W
Bit6
Bit6
Figure 17.11. P0MDOUT: Port0 Output Mode Register
for more information. See also Figure 17.9 for information about configuring the Crossbar
P0.5
R/W
R/W
Bit5
Bit5
Figure 17.10. P0: Port0 Data Register
P0.4
R/W
R/W
Bit4
Bit4
P0.3
R/W
R/W
Bit3
Bit3
Rev. 1.4
P0.2
R/W
R/W
Bit2
Bit2
P0.1
C8051F020/1/2/3
R/W
R/W
Bit1
Bit1
(bit addressable)
P0.0
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
00000000
Reset Value
11111111
Reset Value
0xA4
0x80
173

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