MAX7319ATE+T Maxim Integrated Products, MAX7319ATE+T Datasheet

IC I/O EXPANDER I2C 8B 16TQFN-EP

MAX7319ATE+T

Manufacturer Part Number
MAX7319ATE+T
Description
IC I/O EXPANDER I2C 8B 16TQFN-EP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX7319ATE+T

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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX7319 2-wire serial-interfaced peripheral fea-
tures eight input ports with selectable internal pullups,
overvoltage protection to +6V, and transition detection
with interrupt output.
All input ports are continuously monitored for state
changes (transition detection). Transitions are latched,
allowing detection of transient changes. Any combination
of inputs can be selected using the interrupt mask to
assert the INT output. When the MAX7319 is subsequently
accessed through the serial interface, any pending inter-
rupt is cleared.
The +5.5V tolerant RST input clears the serial interface,
terminating any I
MAX7319.
The MAX7319 uses two address inputs with four-level
logic to allow 16 I
address also enables or disables internal 40kΩ pullups
in groups of four ports.
The MAX7319 supports hot insertion. All eight input
ports, the serial interface SDA, SCL, AD0, AD2, INT,
and RST remain high impedance in power-down (V+ =
0) with up to +6V asserted on them.
The MAX7319 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 MAX7319 is available in 16-pin QSOP and 16-pin
TQFN packages, and is specified over the automotive
temperature range (-40°C to +125°C).
19-3809; Rev 1; 10/05
*Second source to PCF8574.
**Second source to PCF8574A.
† Pa
lC
S.
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.
Cell Phones
SAN/NAS
Servers
MAX7329**
MAX7328*
MAX7319
MAX7320
MAX7321
MAX7322
MAX7323
PART
________________________________________________________________ Maxim Integrated Products
2
I
C
2
2
C slave addresses. The slave
C Port Expander with Eight Inputs and
communication to or from the
General Description
INPUTS
Up to 8
Up to 4
Up to 8
8
4
Notebooks
Satellite Radio
Automotive
Applications
Maskable Transition Detection
INTERRUPT MASK
Yes
Yes
♦ 400kHz, +5.5V-Tolerant I
♦ +1.71V to +5.5V Operating Voltage
♦ Eight Input Ports with Maskable, Latching
♦ Input Ports are Overvoltage Protected to +6V
♦ Transient Changes are Latched, Allowing
♦ INT Output Alerts Change on Any Selection of
♦ AD0 and AD2 Inputs Select from 16 Slave
♦ Low 0.6µA (typ) Standby Current
♦ -40°C to +125°C Operating Temperature Range
Note: All devices specified over -40°C to +125°C operating range.
+Denotes lead-free package.
*EP = Exposed pad.
Pin Configurations, Typical Application Circuit, and
Functional Diagram appear at end of data sheet.
MAX7319AEE+
MAX7319ATE+
Transition Detection
Detection Between Read Operations
Inputs
Addresses
OPEN-DRAIN OUTPUTS
PART
Up to 8
Up to 4
Up to 8
PIN-PACKAGE TOP MARK
16 QSOP
16 TQFN-EP*
Ordering Information
2
C Serial Interface
Selector Guide
PUSH-PULL OUTPUTS
ADA
Features
8
4
4
PKG CODE
T1633-4
E16-4
1

Related parts for MAX7319ATE+T

MAX7319ATE+T Summary of contents

Page 1

... MAX7329** *Second source to PCF8574. **Second source to PCF8574A. † ________________________________________________________________ Maxim Integrated Products 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. Maskable Transition Detection ♦ 400kHz, +5.5V-Tolerant I ♦ +1.71V to +5.5V Operating Voltage ♦ Eight Input Ports with Maskable, Latching Transition Detection ♦ ...

Page 2

I C Port Expander with Eight Inputs and Maskable Transition Detection ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) Supply Voltage V+....................................................-0.3V to +6V SCL, SDA, AD0, AD2, RST, INT, I0–I7......................-0.3V to +6V SDA Input Current.............................................................. 10mA INT Input ...

Page 3

I C Port Expander with Eight Inputs and PORT AND INTERRUPT INT TIMING CHARACTERISTICS (V+ = +1.71V to +5.5V -40°C to +125°C, unless otherwise noted. Typical values are +3.3V PARAMETER SYMBOL Port ...

Page 4

I C Port Expander with Eight Inputs and Maskable Transition Detection (T = +25°C, unless otherwise noted.) A STANDBY CURRENT vs. TEMPERATURE 2.0 1.8 1.6 1.4 1.2 1 +3. +2.5V 0.8 0.6 0.4 0.2 0 ...

Page 5

I C Port Expander with Eight Inputs and Detailed Description MAX7319–MAX7329 Family Comparison The MAX7319–MAX7323 family consists of five pin- compatible, eight-port expanders. Each version is opti- mized for different applications. The MAX7328 and MAX7329 are second sources to ...

Page 6

I C Port Expander with Eight Inputs and Maskable Transition Detection Table 1. MAX7319–MAX7329 Family Comparison (continued SLAVE INTERRUPT PART INPUTS ADDRESS MAX7323 110xxxx MAX7328 0100xxx MAX7329 0111xxx 16-PORT EXPANDERS ...

Page 7

I C Port Expander with Eight Inputs and Table 2. Read and Write Access to Eight-Port Expander Family SLAVE INTERRUPT PART INPUTS ADDRESS MAX7319 110xxxx 8 MAX7320 101xxxx — MAX7321 110xxxx MAX7322 110xxxx ...

Page 8

I C Port Expander with Eight Inputs and Maskable Transition Detection Table 3. MAX7319 Address Map PIN CONNECTION AD2 AD0 A6 A5 SCL GND 1 1 SCL SCL SCL 1 1 SCL SDA 1 1 SDA ...

Page 9

I C Port Expander with Eight Inputs and SDA t SU,DAT t LOW t SCL HIGH t HD,STA t R START CONDITION Figure 1. 2-Wire Serial-Interface Timing Details SDA operates as both an input and an open-drain out- put. ...

Page 10

I C Port Expander with Eight Inputs and Maskable Transition Detection The MAX7319 has a 7-bit slave address (Figure 5). The 8th bit following the 7-bit slave address is the R/W bit low for a write command, ...

Page 11

I C Port Expander with Eight Inputs and Input port data is sampled during the preceding I acknowledge bit (the acknowledge bit for the I address in the case of a single-byte or 2-byte read). A single-byte write to ...

Page 12

I C Port Expander with Eight Inputs and Maskable Transition Detection SCL SLAVE ADDRESS S SDA START CONDITION Figure 8. Writing to the MAX7319 Writing to the MAX7319 A write to the MAX7319 starts ...

Page 13

I C Port Expander with Eight Inputs and Power-Supply Considerations The MAX7319 operates with a +1.71V to +5.5V supply voltage over the -40°C to +125°C temperature range. Bypass V+ to GND with a ceramic capacitor of at least 0.047µF ...

Page 14

I C Port Expander with Eight Inputs and Maskable Transition Detection AD0 AD2 SCL SDA RST Chip Information PROCESS: BiCMOS CONNECT EXPOSED PAD TO GND 14 ______________________________________________________________________________________ INPUT INPUT CONTROL PORTS FILTER POWER-ON RESET MAX7319 Functional ...

Page 15

I C Port Expander with Eight Inputs and (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) MARKING D/2 D 0.10 C PKG 8L 3x3 ...

Page 16

... Maxim reserves the right to change the circuitry and specifications without notice at any time. implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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