JLC1562B ON Semiconductor, JLC1562B Datasheet - Page 2

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

GND
16 X R
V
DD
R
R
R
R
R
R
65
64
63
40
39
2
1
6:64 De−MUX (1 of 64 Decoder)
Bits D0 − D5 of Write Data (2)
SDA
SCL
A0
A1
A2
NOTE: Internal Power On Reset sets P0 ~ P7 low, sets VDAC to 1/80 V
and selects 1/2 V
V
DD
Power−On
Reset
DD
VDAC
Pin 1
for Comparator “B” threshold.
Figure 2. Block Diagram
1LSB + 1
Bit D6 of Write Data (2)
http://onsemi.com
V
JLC1562B
ref
(C5−C7)
6 Bit
5 Bit
80
8 Bit
3 Bit
Selector
1/2 V
V
2
DD
Latch
6−Bit
DAC
CC
Comp.
(C0−C4)
A
5 Bit
D5
1
0
0
Comp.
D4
1
0
0
B
Write Data (2)
D3
1
0
0
Comparator “B”
Write Data (2)
D2
1
0
0
V
ref
D6
1
0
P7
P6
P5
P4
P3
P2
P1
P0
DD
D1
1
0
0
D0
1
1
0
V
V
ref
ref
V
ref
+ 40
64
80
80
80
= VDAC
2
1
Value
80
V
V
V
V
ref
DD
DD
DD
V
DD