LTC2450 datasheet(16/34 Pages) AD

16 / 34 page

LTC2945

Rev. C

For more information www.analog.com

Figure 5. LTC2945 Fault Alert Generation Blocks

APPLICATIONS INFORMATION

Figure 6. General Data Transfer Over I2C

DIGITAL

COMPARATOR

LOGIC

LATCH

STATUS

RESET

FAULT

ALERT

ENA_ALERT_RESPONSE

MEASURED

DATA

THRESHOLD

DATA

2945 F05

SDA

SCL

a6 - a0

b7 - b0

1 - 7

START

CONDITION

STOP

CONDITION

ADDRESS

ACK

DATA

ACK

R/W

2945 F06

Figure 7. LTC2945 Serial Bus SDA Write Byte Protocol

Figure 8. LTC2945 Serial Bus SDA Write Word Protocol

Figure 9. LTC2945 Serial Bus SDA Write Page Protocol

Figure 10. LTC2945 Serial Bus SDA Read Byte Protocol

Figure 11. LTC2945 Serial Bus SDA Read Word Protocol

Figure 12. LTC2945 Serial Bus SDA Read Page Protocol

S ADDRESS

1 1 0 a3:a0

FROM MASTER TO SLAVE

FROM SLAVE TO MASTER

A: ACKNOWLEDGE (LOW)

A: NOT ACKNOWLEDGE (HIGH)

R: READ BIT (HIGH)

COMMAND

DATA

X X b5:b0

b7:b0

A P

2945 F07

W: WRITE BIT (LOW)

S: START CONDITION

P: STOP CONDITION

S ADDRESS

1 1 0 a3:a0

COMMAND

DATA

X X b5:b0

2945 F08

b7:b0

A P

S ADDRESS

1 1 0 a3:a0

COMMAND

X X b5:b0

2945 F09

A P

b7:b0

DATA

b7:b0

DATA

...

b7:b0

DATA

S ADDRESS

1 1 0 a3:a0

1 1 0 a3:a0 1 0

COMMAND

S ADDRESS R A

b7:b0 1

DATA

X X b5:b0

2945 F10

A P

S ADDRESS

1 1 0 a3:a0

1 1 0 a3:a0 1 0

COMMAND

S ADDRESS R A

b7:b0

DATA

X X b5:b0

2945 F11

b7:b0

DATA

A P

S ADDRESS

1 1 0 a3:a0

1 1 0 a3:a0 1 0

COMMAND

S ADDRESS R A

b7:b0

DATA

X X b5:b0

2945 F12

b7:b0

DATA

A P

...

b7:b0

DATA

LTC2450 Datasheet(PDF) 16 Page - Analog Devices

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