MAX7313AEG+T Maxim Integrated Products, MAX7313AEG+T Datasheet - Page 21

• Manufacturer Part Number: MAX7313AEG+T
• Description: IC I/O EXPANDER I2C 16B 24QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX7313AEG+T

• Interface: I²C
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 13. Master, O16 Intensity Register
I/O ports P0–P15, interrupt output INT/016, and serial
interface SDA, SCL, AD0–2 remain high impedance
with up to 6V asserted on them when the MAX7313 is
powered down (V+ = 0V). The MAX7313 can therefore
be used in hot-swap applications.
The open-drain output architecture allows the ports to
level translate the outputs to higher or lower voltages
than the MAX7313 supply. An external pullup resistor
can be used on any output to convert the high-imped-
ance logic-high condition to a positive voltage level.
The resistor can be connected to any voltage up to
5.5V. For interfacing CMOS inputs, a pullup resistor
value of 220kΩ is a good starting point. Use a lower
______________________________________________________________________________________________________
Control, Interrupt, and Hot-Insertion Protection
Master intensity duty cycle is 15/15 (full)
Master intensity duty cycle is 0/15 (off);
Read back master and global intensity
MASTER AND GLOBAL INTENSITY
all outputs will be static with no PWM
Master intensity duty cycle is 13/15
Master intensity duty cycle is 14/15
Master intensity duty cycle is 1/15
Master intensity duty cycle is 2/15
Master intensity duty cycle is 3/15
Write master and global intensity
O16 intensity duty cycle is 14/16
O16 intensity duty cycle is 15/16
O16 intensity duty cycle is 16/16
internal oscillator is disabled;
O16 intensity duty cycle is 1/16
O16 intensity duty cycle is 2/16
O16 intensity duty cycle is 3/16
(static output, no PWM)
REGISTER
Applications Information
—
—
16-Port I/O Expander with LED Intensity
Output Level Translation
Hot Insertion
R/W
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0
1
ADDRESS
CODE
(HEX)
0X0E
MSB
D7
M3
—
—
—
—
—
—
—
—
0
0
0
0
1
1
1
resistance to improve noise immunity, in applications
where power consumption is less critical, or where a
faster rise time is needed for a given capacitive load.
The MAX7313 is pin compatible and software compatible
with the standard register structure used by MAX7311,
PCA9535, and PCA9555. However, some MAX7311 func-
tions are not implemented in the MAX7313, and the
MAX7313’s PWM and blink functionality is not supported
in the MAX7311. Software compatibility is clearly not
100%, but the MAX7313 was designed so the subset
(omitted) features default to the same power-up behavior
as the MAX7311, PCA9535, and PCA9555, and superset
features do not use existing registers in a different way. In
practice, many applications can use the MAX7313 as a
drop-in replacement for the MAX7311.
MASTER INTENSITY
M2
D6
—
—
—
—
—
—
—
—
0
0
0
0
1
1
1
D5
M1
—
—
—
—
—
—
—
—
0
0
1
1
0
1
1
REGISTER DATA
Compatibility with MAX7311
LSB
M0
D4
—
—
—
—
—
—
—
—
0
1
0
1
1
0
1
MSB
D3
G3
—
—
—
—
—
—
—
—
—
0
0
0
1
1
1
O16 INTENSITY
D2
G2
—
—
—
—
—
—
—
—
—
0
0
0
1
1
1
D1
G1
—
—
—
—
—
—
—
—
—
0
0
1
0
1
1
LSB
D0
G0
—
—
—
—
—
—
—
—
—
0
1
0
1
0
1
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