参数资料
型号: ISL97649AIRZ
厂商: Intersil
文件页数: 16/21页
文件大小: 0K
描述: IC POWER MANAGEMENT
标准包装: 75
系列: *
ISL97649A
SCL
SDA
START
DATA
STABLE
DATA
CHANGE
DATA
STABLE
STOP
FIGURE 17. VALID DATA CHANGES, START, AND STOP CONDITIONS
SCL FROM
MASTER
SDA OUTPUT FROM
1
8
9
HIGH IMPEDANCE
TRANSMITTER
SDA OUTPUT FROM
RECEIVER
START
HIGH IMPEDANCE
FIGURE 18. ACKNOWLEDGE RESPONSE FROM RECEIVER
ACK
SIGNALS FROM
THE MASTER
S
T
A
R
T
WRITE
IDENTIFICATION
BYTE
ADDRESS
BYTE
DATA
BYTE
S
T
O
P
SIGNAL AT SDA
0 1 0 1 0 0 0
0
0 0 0 0 0 0 X 0
SIGNALS FROM
THE ISL97649A
A
C
K
A
C
K
A
C
K
FIGURE 19. BYTE WRITE SEQUENCE
S
S
BYTE WITH
R/W = 1
SIGNALS
FROM THE
MASTER
T
A
R
T
IDENTIFICATION
BYTE WITH
R/W = 0
ADDRESS
BYTE
T
A IDENTIFICATION
R
T
A
C
K
A
C
K
S
T
O
P
SIGNAL AT SDA
0 1 0 1 0 0 0 0
A
0 0 0 0 0 0 X 0
A
0 1 0 1 0 0 0
1
A
SIGNALS FROM
THE SLAVE
C
K
C
K
C
K
FIRST READ
DATA BYTE
LAST READ
DATA BYTE
FIGURE 20. READ SEQUENCE
16
FN7928.3
June 27, 2013
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