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MAX7320AEE+T

P1-P3P4-P6P7-P9P10-P12P13-P14
General Description
The MAX7320 2-wire serial-interfaced peripheral fea-
tures eight push-pull outputs with selectable power-up
logic states.
The +5.5V tolerant RST input clears the serial interface,
terminating any I
2
C
†
communication to or from the
MAX7320.
The MAX7320 uses two address inputs with four-level
logic to allow 16 I
2
C slave addresses. The slave
address also determines the power-up state level for
the outputs in groups of four ports.
The MAX7320 supports hot insertion. The serial inter-
face SDA, SCL, AD0, AD2, and RST remain high
impedance in power-down (V+ = 0V) with up to +6V
asserted on them.
The MAX7320 is one device in a family of pin-compatible
port expanders with a choice of input ports, open-drain
I/O ports, and push-pull output ports (see Table 1).
The MAX7320 is available in 16-pin QSOP and 16-pin
TQFN packages, and is specified over the automotive
temperature range (-40°C to +125°C).
Applications
Features
♦ 400kHz, +5.5V-Tolerant I
2
C Serial Interface
♦ +1.71V to +5.5V Operating Voltage
♦ Eight Push-Pull Output Ports with Selectable
Power-Up Logic States
♦ RST Clears the Serial Interface, Terminating Any
Serial Transaction to or from the MAX7320
♦ AD0 and AD2 Inputs Select from 16 Slave
Addresses
♦ Low 0.6µA (typ) Standby Current
♦ -40°C to +125°C Temperature Range
MAX7320
I
2
C Port Expander with Eight Push-Pull Outputs
________________________________________________________________ Maxim Integrated Products 1
19-3879; Rev 0; 10/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas 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
TOP
MARK
PKG
CODE
MAX7320AEE+
-40°C to
+125°C
16 QSOP — E16-4
MAX7320ATE+
-40°C to
+125°C
16 TQFN
3mm x 3mm
x 0.8mm
ADB T1633-4
Pin Configurations, Typical Application Circuit, and
Functional Diagram appear at end of data sheet.
+Denotes lead-free package.
Selector Guide
PART INPUTS INTERRUPT MASK OPEN-DRAIN OUTPUTS PUSH-PULL OUTPUTS
MAX7319 8 Yes — —
MAX7320 — — — 8
MAX7321 Up to 8 — Up to 8 —
MAX7322 4 Yes — 4
MAX7323 Up to 4 — Up to 4 4
MAX7328* — —
MAX7329**
Up to 8
—
Up to 8
—
*Second source to PCF8574.
**Second source to PCF8574A.
†
P
a
l
C
S.
Cell Phones/PDAs
Satellite Radios
Notebooks
Automotive
RAID
Servers
MAX7320
I
2
C Port Expander with Eight Push-Pull Outputs
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.
(All voltages referenced to GND.)
Supply Voltage V+....................................................-0.3V to +6V
SCL, SDA, AD0, AD2, RST .......................................-0.3V to +6V
O0–07...............................................................0.3V to V+ + 0.3V
00–07 Output Current .......................................................±25mA
SDA Input Current.............................................................. 10mA
Total V+ Current..................................................................50mA
Total GND Current ...........................................................100mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin QSOP (derate 8.3mW/°C over +70°C)..............667mW
16-Pin Thin QFN (derate 15.6mW/°C over +70°C) ....1250mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(V+ = +1.71V to +5.5V, T
A
= -40°C to +125°C, 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+ 1.71 5.50 V
Power-On Reset Voltage V
POR
1.6 V
Standby Current Voltage
(Interface Idle)
I
STB
SCL and SDA and other digital inputs at V+ 0.6 1.5 µA
Supply Current
(Interface Running)
I+ f
SCL
= 400kHz; other digital inputs at V+ 23 55 µA
V+ < 1.8V 0.8 x V+
Input High-Voltage
SDA, SCL, AD0, AD2, RST
V
IH
V+ ≥ 1.8V 0.7 x V+
V
V+ < 1.8V 0.2 x V+
Input Low-Voltage
SDA, SCL, AD0, AD2, RST
V
IL
V+ ≥ 1.8V 0.3 x V+
V
Input Leakage Current
SDA, SCL, AD0, AD2, RST
I
IH
, I
IL
SDA, SCL, AD0, AD2, RST, O0–O7 at V+ or
GND
-0.2 +0.2 µA
Input Capacitance
SDA, SCL, AD0, AD2, RST
10 pF
V+ = +1.71V, I
SINK
= 1mA 120 240
V+ = +2.5V, I
SINK
= 2mA 140 280
V+ = +3.3V, I
SINK
= 3mA 170 310
Output Low Voltage
O0–O7
V
OL
V+ = +5V, I
SINK
= 5mA 220 380
mV
V+ = +1.71V, I
SOURCE
= 1mA V+
- 250 V+
- 130
V+ = +2.5V, I
SOURCE
= 2mA V+
- 350 V+ - 200
V+ = +3.3V, I
SOURCE
= 3mA V+
- 290 V+ - 150
Output High Voltage
O0–O7
V
OH
V+ = +5V, I
SOURCE
= 5mA V+
- 380 V+
- 230
mV
Output Low Voltage SDA V
OLSDA
I
SINK
= 6mA 250 mV
MAX7320
I
2
C Port Expander with Eight Push-Pull Outputs
_______________________________________________________________________________________ 3
PORT AND TIMING CHARACTERISTICS
(V+ = +1.71V to +5.5V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V+ = +3.3V, T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Port Output Data Valid t
PPV
C
L
≤ 100pF 4 µs
TIMING CHARACTERISTICS
(V+ = +1.71V to +5.5V, T
A
= -40°C to +125°C, 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 3) 0.9 µs
Data Setup Time
t
SU
,
DAT
100 ns
SCL Low to Data Out Valid t
VD
,
DAT
SCL low to SDA output valid 3.4 µs
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 2, 4)
20 +
0.1C
b
300 ns
Fall Time of Both SDA and SCL
Signals, Receiving
t
F
(Notes 2, 4)
20 +
0.1C
b
300 ns
Fall Time of SDA Transmitting t
F,TX
(Notes 2, 4)
20 +
0.1C
b
250 ns
Pulse Width of Spike Suppressed
t
SP
(Note 5) 50 ns
Capacitive Load for Each Bus
Line
C
b
(Note 2) 400 pF
RST Pulse Width t
W
500 ns
RST Rising to START Condition
Setup Time
t
RST
1µs
Note 1: All parameters tested at T
A
= +25°C. Specifications over temperature are guaranteed by design.
Note 2: Guaranteed by design.
Note 3: A master device must provide a hold time of at least 300ns for the SDA signal (referred to V
IL
of the SCL signal) to bridge
the undefined region of SCL’s falling edge.
Note 4: C
b
= total capacitance of one bus line in pF. t
R
and t
F
measured between 0.3 x V+ and 0.7 x V+, I
SINK
≤ 6mA.
Note 5: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.
P1-P3P4-P6P7-P9P10-P12P13-P14

MAX7320AEE+T

Mfr. #:
Buy MAX7320AEE+T
Manufacturer:
Maxim Integrated
Description:
Interface - I/O Expanders I2C Port Expander w/8 Push-Pull Out
Lifecycle:
New from this manufacturer.
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