JLC1562B ON Semiconductor, JLC1562B Datasheet - Page 7

• Manufacturer Part Number: JLC1562B
• Description: I2C Bus I/O Expander
• Manufacturer: ON Semiconductor

<<WRITE MODE>>
SCL
SDA
Write_buffer
Latch Pulse
I/O Port
(P0 − P7)
DAC
Latch Pulse
DAC Latch
<<READ MODE>> (READ LATCH = 0)
<<READ MODE>> (READ LATCH = 1)
SCL
SDA
DAC Latch
D7 (READ LATCH Bit)
LATCH Reset
Comp._out
Latched Data
PISO
Load Pulse
SCL
SDA
PISO
Load Pulse
Comp_out
(C0 − C4)
Comp_out
(C5 − C7)
S
1
1
1
0
WRITE COMMAND
2
2
WRITE DATA (II)
1
S
3
3
1
1
0
READ COMMAND
4
4
2
1
1
5
5
3
x
1
6
6
4
x
1
7
7
5
x
x
8
6
8
0
x
9
A
9
A
7
x
DATA (II)
DATA (I)
1
P
8
1
2
A
9
3
1
DATA (I)
http://onsemi.com
4
2
DATA (I) + (II)
JLC1562B
5
3
6
4
7
7
5
S
1
8
6
0
A
2
9
READ COMMAND
7
1
3
1
8
1
4
A P
2
9
1
3
5
DATA (II)
x
DATA (I) valid
6
4
x
7
5
x
8
DATA (I)
6
1
7
9
A
1
8
A P
9
2
3
DATA (I)
DATA (II) valid
4
5
6
7
8
9
A
P