MAX7321ATE+ Maxim Integrated Products, MAX7321ATE+ Datasheet - Page 11

• Manufacturer Part Number: MAX7321ATE+
• Description: IC I/O EXPANDER I2C 8B 16TQFN-EP
• Manufacturer: Maxim Integrated Products

Specifications of MAX7321ATE+

• Interface: I²C
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 1.71 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 5. Slave Address
Figure 6. Reading the MAX7321 (1 Data Byte)
Figure 7. Reading the MAX7321 (2 Data Bytes)
.
SDA
SCL
t
IV
PORTS
INT OUTPUT
t
IV
SCL
MSB
S
1
PORT I/O
INT OUTPUT
S
1
I
SCL
2
______________________________________________________________________________________
1
1
C Port Expander with 8 Open-Drain I/Os
0
1
1
MAX7321 SLAVE ADDRESS
0
MAX7321 SLAVE ADDRESS
R/W
0
1
A
t
IR
t
PH
PORT SNAPSHOT
I7
D7
A3
R/W
INT REMAINS HIGH UNTIL STOP CONDITION
I6
D6
1
I5
D5
I4
PORT I/O
A
D4
A2
t
IR
t
I3
PH
PORT SNAPSHOT
P7
D3
D7
PORT SNAPSHOT
I2
D2
P6
INT REMAINS HIGH UNTIL STOP CONDITION
D6
I1
D1
P5
A1
I0
t
PSU
D5
D0
P4
PORT I/O
A
DATA
D4
F7
D7
P3
D3
LSB
F6
A0
D6
S = START CONDITION
P = STOP CONDITION
SHADED = SLAVE TRANSMISSION
N = NOT ACKNOWLEDGE
P2
D2
F5
INTERRUPT FLAGS
D5
PORT SNAPSHOT
P1
F4
D4
D1
F3
R/W
D3
P0
D0
PORT SNAPSHOT
F2
D2
t
PSU
F1
N
D1 D0
F0
ACK
P
t
IP
N
t
IP
P
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