C8051F046-GQR Silicon Laboratories Inc, C8051F046-GQR Datasheet - Page 251
C8051F046-GQR
Manufacturer Part Number
C8051F046-GQR
Description
IC 8051 MCU 32K FLASH 100TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F04xr
Specifications of C8051F046-GQR
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
64
Program Memory Size
32KB (32K 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
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Quantity
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AMAZING
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Bits7-3:
Bits2-0:
STA7
R/W
Bit7
STA7-STA3: SMBus0 Status Code.
These bits contain the SMBus0 Status Code. There are 28 possible status codes; each sta-
tus code corresponds to a single SMBus state. A valid status code is present in SMB0STA
when the SI flag (SMB0CN.3) is set to logic 1. The content of SMB0STA is not defined when
the SI flag is logic 0. Writing to the SMB0STA register at any time will yield indeterminate
results.
STA2-STA0: The three least significant bits of SMB0STA are always read as logic 0 when
the SI flag is logic 1.
STA6
R/W
Bit6
SFR Definition 19.5. SMB0STA: SMBus0 Status
STA5
R/W
Bit5
STA4
R/W
Bit4
Rev. 1.5
STA3
R/W
Bit3
C8051F040/1/2/3/4/5/6/7
STA2
R/W
Bit2
STA1
R/W
Bit1
SFR Address:
SFR Page:
STA0
R/W
Bit0
0xC1
0
Reset Value
11111000
251
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