LTC4260 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC4260 Datasheet PDF : 32 Pages
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LTC2945
APPLICATIONS INFORMATION
MEASURED
DATA
THRESHOLD
DATA
DIGITAL
COMPARATOR
LOGIC
STATUS
FAULT
LATCH
ALERT
ENA_ALERT_RESPONSE
RESET
2945 F04
Figure 4. LTC2945 Fault Alert Generation Blocks
SDA
a6 - a0
b7 - b0
b7 - b0
SCL
1-7
S
START
ADDRESS
CONDITION
8
9
R/W ACK
1-7
8
9
DATA
ACK
1-7
8
DATA
Figure 5. General Data Transfer over I2C
9
P
ACK
STOP
CONDITION
2945 F05
S ADDRESS W A COMMAND A DATA A P
1 1 0 a3:a0 0 0
X X b5:b0
0 b7:b0 0
2945 F06
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
A: ACKNOWLEDGE (LOW)
A: NOT ACKNOWLEDGE (HIGH)
R: READ BIT (HIGH)
W: WRITE BIT (LOW)
S: START CONDITION
P: STOP CONDITION
Figure 6. LTC2945 Serial Bus SDA Write Byte Protocol
S ADDRESS W A
1 1 0 a3:a0 0 0
COMMAND
X X b5:b0
A DATA A DATA A P
0 b7:b0 0 b7:b0 0
2945 F07
Figure 7. LTC2945 Serial Bus SDA Write Word Protocol
S ADDRESS W A
1 1 0 a3:a0 0 0
COMMAND
X X b5:b0
A DATA A DATA A ... DATA A P
0 b7:b0 0 b7:b0 0 ... b7:b0 0
2945 F08
Figure 8. LTC2945 Serial Bus SDA Write Page Protocol
S ADDRESS W A
1 1 0 a3:a0 0 0
COMMAND
X X b5:b0
A S ADDRESS R A DATA A P
0 1 1 0 a3:a0 1 0 b7:b0 1
2945 F09
Figure 9. LTC2945 Serial Bus SDA Read Byte Protocol
S ADDRESS W A
1 1 0 a3:a0 0 0
COMMAND
X X b5:b0
A S ADDRESS R A DATA A DATA A P
0 1 1 0 a3:a0 1 0 b7:b0 0 b7:b0 1
2945 F10
Figure 10. LTC2945 Serial Bus SDA Read Word Protocol
S ADDRESS W A
1 1 0 a3:a0 0 0
COMMAND
X X b5:b0
A S ADDRESS R A DATA A DATA ... DATA A P
0 1 1 0 a3:a0 1 0 b7:b0 0 b7:b0 ... b7:b0 1
2945 F11
Figure 11. LTC2945 Serial Bus SDA Read Page Protocol
2945f
15
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