24AA64/24LC64
FIGURE 4-1: DATA TRANSFER SEQUENCE ON THE SERIAL BUS
(A)
(B)
(D)
(D)
(C) (A)
SCL
SDA
START
CONDITION
ADDRESS OR
DATA
STOP
CONDITION
ACKNOWLEDGE ALLOWED
VALID
TO CHANGE
FIGURE 4-2: ACKNOWLEDGE TIMING
Acknowledge
Bit
1
2
3
4
5
6
7
8
9
1
2
3
SCL
SDA
Data from transmitter
Data from transmitter
Receiver must release the SDA line at this point
so the Transmitter can continue sending data.
Transmitter must release the SDA line at this point
allowing the Receiver to pull the SDA line low to
acknowledge the previous eight bits of data.
1998 Microchip Technology Inc.
DS21189B-page 5