參數(shù)資料
型號(hào): LTC1710I
廠商: Linear Technology Corporation
英文描述: SMBus Dual Monolithic High Side Switch
中文描述: 單片的SMBus雙高邊開(kāi)關(guān)
文件頁(yè)數(shù): 5/8頁(yè)
文件大?。?/td> 219K
代理商: LTC1710I
5
LTC1710
BLOCK DIAGRA
V
CC
V
CC
OUT1
7
1
2
SW0D
OUT0
4
GND
1710 BD
UNDERVOLTAGE
LOCKOUT
POWER-ON
RESET
2V
V
CC
ACK
A
B
OUTPUT
LATCHES
SHIFT
REGISTER
ADDRESS
DECODER
COUNTER
INPUT
BUFFERS
THERMAL
SHUTDOWN
REGULATED
CHARGE
PUMPS
ADDRESS
COMPARATOR
LOGIC
START
AND
STOP
DETECTORS
3
AD1
5
CLK
6
8
DATA
TIW
W
CLK
DATA
START
STOP
1710 TD
t
SU:STO
t
LOW
t
HIGH
t
HD:DAT
t
SU:DAT
t
HD:STA
t
SU:STA
t
f
t
r
OPERATIOU
SMBus Operation
SMBus is a serial bus interface that uses only two bus lines,
DATA and CLK, to control low power peripheral devices in
portable equipment. It consists of masters, also known as
hosts, and slave devices. The master of the SMBus is
always the one to initiate communications to the slave
devices by varying the status of the DATA and CLK lines.
The SMBus specification establishes a set of protocols that
devices on the bus must follow for communications.
The protocol that the LTC1710 uses is the Send Byte Pro-
tocol. In this protocol, the master first sends out a Start
signal by switching the DATA line from high to low while
CLK is high. (Because there may be more than one master
on the same bus, an arbitration process takes place if two
masters attempt to take control of the DATA line simulta-
neously; the first master that outputs a one while the other
master is zero loses the arbitration and becomes a slave
itself.) Upon detecting this Start signal, all slave devices on
the bus wake up and prepare to shift in the next byte of data.
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