Pin Connection; Software Support; Figure 2: Is31Io7325 Application Schematic; Bill Of Materials - ISSI IS31IO7325 Manual

IS31IO7325 Multi-Function I/O Driver Evaluation Board Guide
Pin
Connection
AD1 AD0 PP7 PP6
GND GND 0 0
GND V 0 0
CC
V GND 1 1
CC
V V 1 1
CC CC

Software support

Please refer to the datasheet to get more information about IS31IO7325
VCC
TP1
C1
10uF
TP2
R4
TP5 4.7K
SDA SCL
2
SCL SDA
1
INT
TP4 RST
RST
2
INT
1
TP3
AD1
2
AD0
1

Bill of Materials

Name
I/O IC
Resistors
Resistors
Resistors
Capacitor
Capacitor
Integrated Silicon Solution, Inc. – www.issi.com
R1.0, 08/13/2012
PP5 PP4 PP3 PP2
0 0 0 0
0 0 1 1
1 1 0 0
1 1 1 1
U1
VCC
21
VCC
C2
0.1uF
VCC
R3 R2 R1
4.7K 4.7K 4.7K
19
SCL
20
SDA
22
INT
23
RST
AD0 18
AD0
AD1 24
AD1
R5 R6
100K 100K 9
GND
IS31IO7325
Figure 2:IS31IO7325 Application Schematic
Symbol
U1 16 I/O Ports.Expander
R1~R4 RES,4.7k,1/16W,±5%,SMD
R5,R6 RES,100k,1/16W,±5%,SMD
R7~R14 RES,100k,1/16W,±5%,SMD
C1 CAP,10µF,16V,±20%,SMD
C2 CAP,0.1µF,16V,±20%,SMD
Table 3: Bill of Materials, refer to Figure 2 above.
Port Power Up Default
PP1 PP0 OD7 OD6
0 0 0 0
1 1 0 0
0 0 Hi-Z Hi-Z
1 1 Hi-Z Hi-Z
Table2
VCC
R14 R13
100K 100K
5
OD0
6
OD1
7
OD2
8
OD3
10
OD4
11
OD5
12
OD6
13
OD7
1
PP0
2
PP1
3
PP2
4
PP3
14
PP4
15
PP5
16
PP6
17
PP7
Description
OD5 OD4 OD3 OD2
0 0 0 0
0 0 Hi-Z Hi-Z
Hi-Z Hi-Z 0 0
Hi-Z Hi-Z Hi-Z Hi-Z
R12 R11 R10 R9 R8 R7
100K 100K 100K 100K 100K 100K
OD0
OD1
OD2
OD3
OD4
OD5
OD6
OD7
PP0
PP1
PP2
PP3
PP4
PP5
PP6
PP7
Qty Supplier Part No.
1 ISSI IS31IO7325
4
2
8
1
1
2
OD1 OD0
0 0
Hi-Z Hi-Z
0 0
Hi-Z Hi-Z
TP7
1
2
3
4
5
6
7
8
TP6
1
2
3
4
5
6
7
8