C8051F353 Silicon Laboratories Inc, C8051F353 Datasheet - Page 147
C8051F353
Manufacturer Part Number
C8051F353
Description
IC 8051 MCU 8K FLASH 28MLP
Manufacturer
Silicon Laboratories Inc
Series
C8051F35xr
Specifications of C8051F353
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
17
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x16b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F353-GM
Manufacturer:
SiliconL
Quantity:
8 050
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19.
The SMBus I/O interface is a two-wire, bi-directional serial bus. The SMBus is compliant with the System
Management Bus Specification, version 1.1, and compatible with the I2C serial bus. Reads and writes to
the interface by the system controller are byte oriented with the SMBus interface autonomously controlling
the serial transfer of the data. Data can be transferred at up to 1/10th of the system clock as a master or
slave (this can be faster than allowed by the SMBus specification, depending on the system clock used). A
method of extending the clock-low duration is available to accommodate devices with different speed
capabilities on the same bus.
The SMBus interface may operate as a master and/or slave, and may function on a bus with multiple mas-
ters. The SMBus provides control of SDA (serial data), SCL (serial clock) generation and synchronization,
arbitration logic, and START/STOP control and generation. Three SFRs are associated with the SMBus:
SMB0CF configures the SMBus; SMB0CN controls the status of the SMBus; and SMB0DAT is the data
register, used for both transmitting and receiving SMBus data and slave addresses.
M
R
A
S
T
E
Interrupt
Request
SMBus
M
X
O
D
E
T
SMB0CN
S
T
A
O
S
T
A
C
K
R
Q
O
A
R
B
L
S
T
A
C
K
S
I
Arbitration
SCL Synchronization
SCL Generation (Master Mode)
SDA Control
IRQ Generation
SMBUS CONTROL LOGIC
M
E
N
S
B
N
H
I
Figure 19.1. SMBus Block Diagram
U
SMB0CF
B
S
Y
E
X
T
H
O
D
L
M
O
S
B
T
E
7
M
S
B
F
T
E
6
SMB0DAT
M
S
B
C
S
1
5
M
S
B
C
S
0
4
Data Path
3
Control
2
1
0
Rev. 0.4
00
01
10
11
Control
Control
SDA
SCL
T0 Overflow
T1 Overflow
TMR2H Overflow
TMR2L Overflow
FILTER
FILTER
N
N
C8051F350/1/2/3
SDA
SCL
C
R
O
R
S
S
B
A
Port I/O
147
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