参数资料
型号: TC74A4-3.3VCTRT
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO5
封装: EIAJ, SC-74A, SOT-23A, 5 PIN
文件页数: 6/10页
文件大小: 63K
代理商: TC74A4-3.3VCTRT
5
TC74-4 3/26/99
TC74
Tiny Serial Digital Thermal Sensor
2001 Microchip Technology Inc.
DS21462A
Figure 1. SMBus Protocols
S
ADDRESS
WR
ACK
COMMAND
ACK
DATA
ACK
P
8 Bits
7 Bits
8 Bits
Slave Address
Command Byte: selects
which register you are
writing to.
Data Byte: data goes
into the register set
by the command byte.
Write Byte Format
Read Byte Format
S
ADDRESS WR
ACK
COMMAND
ACK
S
ADDRESS
RD ACK
DATA NACK P
7 Bits
8 Bits
7 Bits
8 Bits
Slave Address
Command Byte: selects
which register you are
reading from.
Slave Address: repeated
due to change in data-
flow direction.
Data Byte: reads from
the register set by the
command byte.
Receive Byte Format
S
ADDRESS
RD ACK
DATA NACK P
7 Bits
8 Bits
Data Byte: reads data from
the register commanded by
the last Read Byte or Write
Byte transmission.
S = Start Condition
P = Stop Condition
Shaded = Slave Transmission
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