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MAX7313ATG+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
General Description
The MAX7313 I
2
C-compatible serial interfaced periph-
eral provides microprocessors with 16 I/O ports. Each
I/O port can be individually configured as either an
open-drain current-sinking output rated at 50mA and
5.5V, or a logic input with transition detection. A 17th
port can be used for transition detection interrupt, or as
a general-purpose output. The outputs are capable of
driving LEDs, or providing logic outputs with external
resistive pullup up to 5.5V.
PWM current drive is integrated with 8 bits of control.
Four bits are global control and apply to all LED outputs
to provide coarse adjustment of current from fully off to
fully on with 14 intensity steps. Each output then has
individual 4-bit control, which further divides the global-
ly set current into 16 more steps. Alternatively, the cur-
rent control can be configured as a single 8-bit control
that sets all outputs at once.
The MAX7313 is pin and software compatible with the
MAX7311, PCA9535, and PCA9555.
Each output has independent blink timing with two blink
phases. All LEDs can be individually set to be on or off
during either blink phase, or to ignore the blink control.
The blink period is controlled by a register.
The MAX7313 supports hot insertion. All port pins, the
INT output, SDA, SCL, and the slave-address inputs
ADO-2 remain high impedance in power-down (V+ =0V)
with up to 6V asserted upon them.
The MAX7313 is controlled through the 2-wire
I
2
C/SMBus serial interface, and can be configured to
any one of 64 I
2
C addresses.
Applications
LCD Backlights
LED Status Indication
Portable Equipment
Keypad Backlights
RGB LED Drivers
Notebook Computers
Features
o 400kbs, 2-Wire Serial Interface, 5.5V Tolerant
o 2V to 3.6V Operation
o Overall 8-Bit PWM LED Intensity Control
Global 16-Step Intensity Control
Individual 16-Step Intensity Controls
o Two-Phase LED Blinking
o High Output Current (50mA max Per Port)
o Outputs are 5.5V-Rated Open Drain
o Supports Hot Insertion
o Inputs are Overvoltage Protected to 5.5V
o Transition Detection with Interrupt Output
o 1.2µA (typ), 3.6µA (max) Standby Current
o Small 4mm x 4mm TQFN Package
o -40°C to +125°C Temperature Range
o All Ports Can Be Configured as Inputs or Outputs
MAX7313
16-Port I/O Expander with LED Intensity
Control, Interrupt, and Hot-Insertion Protection
________________________________________________________________
Maxim Integrated Products
1
TOP VIEW
TQFN
4mm x 4mm
MAX7313ATG
19
20
21
22
12 3456
18 17 16 15 14 13
23
24
12
11
10
9
8
7
SCL
V+
SDA
INT/O16
AD2
P0
P1
P2
P3
P4
P5
AD0
P15
P13
P12
P11
AD1
P10
P8
P9
GND
P6
*CONNECT EP TO GND
*EP
+
P7
P14
Pin Configurations
19-3059; Rev 5; 6/11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
EVALUATION KIT
AVAILABLE
Ordering Information
PART TEMP RANGE PIN-PACKAGE
MAX7313ATG+ -40°C to +125°C 24 TQFN-EP*
MAX7313AEG+ -40°C to +125°C 24 QSOP
Pin Configurations continued at end of data sheet.
Typical Application Circuit appears at end of data sheet.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
EP = Exposed Pad.
MAX7313
16-Port I/O Expander with LED Intensity
Control, Interrupt, and Hot-Insertion Protection
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage (with respect to GND)
V+ .............................................................................-0.3V to +4V
SCL, SDA, AD0, AD1, AD2, P0–P15 ........................-0.3V to +6V
INT/O16 ....................................................................-0.3V to +8V
DC Current on P0–P15, INT/O16 ........................................55mA
DC Current on SDA.............................................................10mA
Maximum GND Current ....................................................350mA
Continuous Power Dissipation (T
A
= +70°C)
24-Pin QSOP (derate 9.5mW/°C over +70°C)..............761mW
24-TQFN (derate 20.8mW/°C over +70°C) ................1666mW
Operating Temperature Range (T
MIN
to T
MAX
)-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, V+ = 2V to 3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, T
A
= +25°C.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Supply Voltage V+ 2 3.6 V
Output Load External Supply
Voltage
V
EXT
0 5.5 V
T
A
= +25°C 1.2 2.3
T
A
= -40°C to +85°C 2.8
Standby Current
(Interface Idle, PWM Disabled)
I
+
S C L and S D A at V + ; other
d i g i tal i np uts at V + or GN D ;
P WM i ntensi ty contr ol d i sab l ed
T
A
= T
MIN
to T
MAX
3.6
µA
T
A
= +25°C 8.5 15.1
T
A
= -40°C to +85°C 16.5
Supply Current
(Interface Idle, PWM Enabled)
I
+
S C L and S D A at V + ; other
d i g i tal i np uts at V + or GN D ;
P WM i ntensi ty contr ol enab l ed
T
A
= T
MIN
to T
MAX
17.2
µA
T
A
= +25°C 50 95.3
T
A
= -40°C to +85°C 99.2
Supply Current
(Interface Running, PWM
Disabled)
I
+
f
SCL
= 400kHz; other digital
inputs at V+ or GND; PWM
intensity control disabled
T
A
= T
MIN
to T
MAX
102.4
µA
T
A
= +25°C 57 110.2
T
A
= -40°C to +85°C 117.4
Supply Current
(Interface Running, PWM
Enabled)
I
+
f
SCL
= 400kHz; other digital
inputs at V+ or GND; PWM
intensity control enabled
T
A
= T
MIN
to T
MAX
122.1
µA
Input High Voltage
SDA, SCL, AD0, AD1, AD2,
P0–P15
V
IH
0.7 ✕
V+
V
Input Low Voltage
SDA, SCL, AD0, AD1, AD2,
P0–P15
V
IL
0.3 ✕
V+
V
Input Leakage Current
SDA, SCL, AD0, AD1, AD2,
P0–P15
I
IH
, I
IL
Input = GND or V+ -0.2 +0.2 µA
Input Capacitance
SDA, SCL, AD0, AD1, AD2,
P0–P15
8pF
MAX7313
16-Port I/O Expander with LED Intensity
Control, Interrupt, and Hot-Insertion Protection
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2V to 3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, T
A
= + 25°C.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
T
A
= +25°C 0.15 0.26
T
A
= -40°C to +85°C 0.3V+ = 2V, I
SINK
= 20mA
T
A
= T
MIN
to T
MAX
0.32
T
A
= +25°C 0.13 0.23
T
A
= -40°C to +85°C 0.26
V+ = 2.5V, I
SINK
= 20mA
T
A
= T
MIN
to T
MAX
0.28
T
A
= +25°C 0.12 0.23
T
A
= -40°C to +85°C 0.24
Output Low Voltage
P0–P15, INT/O16
V
OL
V+ = 3.3V, I
SINK
= 20mA
T
A
= T
MIN
to T
MAX
0.26
V
Output Low-Voltage SDA V
OLSDA
I
SINK
= 6mA 0.4 V
PWM Clock Frequency f
PWM
32 kHz
TIMING CHARACTERISTICS
(Typical Operating Circuit, V+ = 2V to 3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, T
A
= +25°C.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Serial Clock Frequency f
SCL
400 kHz
Bus Free Time Between a STOP and a START
Condition
t
BUF
1.3 µs
Hold Time, Repeated START Condition t
HD
,
STA
0.6 µs
Repeated START Condition Setup Time t
SU
,
STA
0.6 µs
STOP Condition Setup Time t
SU
,
STO
0.6 µs
Data Hold Time t
HD
,
DAT
(Note 2) 0.9 µs
Data Setup Time t
SU
,
DAT
180 ns
SCL Clock Low Period t
LOW
1.3 µs
SCL Clock High Period t
HIGH
0.7 µs
Rise Time of Both SDA and SCL Signals, Receiving t
R
(Notes 3, 4)
20 +
0.1C
b
300 ns
Fall Time of Both SDA and SCL Signals, Receiving t
F
(Notes 3, 4)
20 +
0.1C
b
300 ns
Fall Time of SDA Transmitting t
F.TX
(Notes 2, 3, 5)
20 +
0.1C
b
250 ns
Pulse Width of Spike Suppressed t
SP
(Notes 2, 6) 50 ns
Capacitive Load for Each Bus Line C
b
(Notes 2, 3) 400 pF
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

MAX7313ATG+T

Mfr. #:
Buy MAX7313ATG+T
Manufacturer:
Maxim Integrated
Description:
Interface - I/O Expanders 16-Bit I/O Port Expander
Lifecycle:
New from this manufacturer.
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