Datasheet

MAX7310
2-Wire-Interfaced 8-Bit I/O Port Expander
with Reset
12 ______________________________________________________________________________________
OUTPUT
PORT
REGISTER
INPUT
PORT
REGISTER
POLARITY
INVERSION
REGISTER
CONFIGURATION
REGISTER
DATA FROM
SHIFT REGISTER
DATA FROM
SHIFT REGISTER
DATA FROM
SHIFT REGISTER
WRITE PULSE
READ PULSE
ESD-PROTECTION DIODE
ESD-PROTECTION DIODE
I/O1 TO I/O7
OUTPUT PORT
REGISTER DATA
INPUT PORT
REGISTER DATA
POLARITY
REGISTER DATA
GND
V+
WRITE
CONFIGURATION
PULSE
WRITE POLARITY
PULSE
D
FF
C
K
Q
Q
D
FF
C
K
Q
Q
D
FF
C
K
Q
Q
D
FF
C
K
Q
Q
Figure 8. Simplified Schematic of I/O1–I/O7