参数资料
型号: TC1322EUART
元件分类: DAC
英文描述: SERIAL INPUT LOADING, 10 us SETTLING TIME, 12-BIT DAC, PDSO8
封装: MSOP-8
文件页数: 8/11页
文件大小: 65K
代理商: TC1322EUART
6
TC1322-1
6/23/00
TC1322
12-Bit Digital-to-Analog Converter
with Two-Wire Interface
2001 Microchip Technology Inc.
DS21388A
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 1 Byte Format
S
ADDRESS
WR
ACK
COMMAND
ACK
DATA
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 2 Byte Format
Read 1 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.
Read 2 Byte Format
S
ADDRESS WR
ACK
COMMAND
ACK
S
ADDRESS
RD ACK
DATA
ACK
NACK
P
DATA
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 1 Byte Format
S
ADDRESS
RD ACK
DATA NACK
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
Receive 1 Byte Format
S
ADDRESS
RD ACK
DATA
ACK
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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