C8051F045 Silicon Laboratories Inc, C8051F045 Datasheet - Page 216
C8051F045
Manufacturer Part Number
C8051F045
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F04xr
Specifications of C8051F045
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
CAN, 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 13x10b
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
336-1157
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C8051F040/1/2/3/4/5/6/7
216
Bits7-0:
Note:
Bits7-0:
Notes:
1.
2.
P1.7
R/W
R/W
Bit7
Bit7
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.
P1.[7:0]: Port1 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 P1MDOUT.n bit = 0).
(Read - Regardless of XBR0, XBR1, XBR2, and XBR3 Register settings).
0: P1.n pin is logic low.
1: P1.n pin is logic high.
P1.[7:0] can be configured as inputs to ADC1 as AIN1.[7:0], in which case they are ‘skipped’
by the Crossbar assignment process and their digital input paths are disabled, depending on
P1MDIN (See SFR Definition 17.8). Note that in analog mode, the output mode of the pin is
determined by the Port 1 latch and P1MDOUT (SFR Definition 17.9). See
ADC (ADC2, C8051F040/1/2/3 Only)” on page 91
P1.[7:0] can be driven by the External Data Memory Interface (as Address[15:8] in Non-mul-
tiplexed mode). See
on page 187
P1.6
R/W
R/W
Bit6
Bit6
SFR Definition 17.6. P0MDOUT: Port0 Output Mode
for more information about the External Memory Interface.
P1.5
R/W
R/W
Bit5
Bit5
SFR Definition 17.7. P1: Port1 Data
Section “16. External Data Memory Interface and On-Chip XRAM”
P1.4
R/W
R/W
Bit4
Bit4
Rev. 1.5
P1.3
R/W
R/W
Bit3
Bit3
P1.2
R/W
R/W
Bit2
Bit2
for more information about ADC2.
P1.1
R/W
R/W
Bit1
Bit1
SFR Address:
SFR Address:
SFR Page:
SFR Page:
P1.0
R/W
R/W
Bit0
Bit0
Section “7. 8-Bit
0x90
All Pages
0xA4
F
Addressable
00000000
Reset Value
Reset Value
11111111
Bit
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