MAX7318AWG-T Maxim Integrated, MAX7318AWG-T Datasheet

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MAX7318AWG-T

Manufacturer Part Number
MAX7318AWG-T
Description
Interface - I/O Expanders 16-Bit I/O Port Expander
Manufacturer
Maxim Integrated
Series
MAX7318r
Datasheet

Specifications of MAX7318AWG-T

Maximum Operating Frequency
400 KHz
Operating Supply Voltage
2 V to 5.5 V
Operating Temperature Range
- 40 C to + 125 C
Mounting Style
SMD/SMT
Package / Case
SOIC-24 Wide
Output Current
43 mA
Power Dissipation
1667 mW
The MAX7318 2-wire-interfaced expander provides 16-
bit parallel input/output (I/O) port expansion for SMBus™
and I
port registers, output port registers, polarity inversion
registers, configuration registers, and an I
serial interface logic compatible with SMBus. The sys-
tem master can invert the MAX7318 input data by writing
to the active-high polarity inversion register.
Any of the 16 I/O ports can be configured as an input or
output. A power-on reset (POR) initializes the 16 I/Os
as inputs. Three address select pins configure one of
64 slave ID addresses.
The MAX7318 supports hot insertion. All port pins, the
INT output, SDA, SCL, and the slave address inputs
AD0–2 remain high impedance in power-down (V+ =
0V) with up to 6V asserted upon them.
The MAX7318 is available in 24-pin SO, SSOP, TSSOP,
and thin QFN packages and is specified over the -40°C
to +125°C automotive temperature range.
For applications requiring an SMBus timeout function,
refer to the MAX7311 data sheet.
19-3381; Rev 3; 12/07
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.
TOP VIEW
2
C applications. The MAX7318 consists of input
Servers
RAID Systems
Industrial Control
Medical Equipment
PLCs
Instrumentation and Test Measurement
GND
AD1
AD2
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
INT
10
11
12
1
2
3
4
5
6
7
8
9
TSSOP/SSOP/SO
2-Wire-Interfaced, 16-Bit, I/O Port Expander
MAX7318
with Interrupt and Hot-Insertion Protection
________________________________________________________________ Maxim Integrated Products
24
23
22
21
20
19
18
17
16
15
14
13
V+
SDA
SCL
AD0
I/O15
I/O14
I/O13
I/O12
I/O11
I/O10
I/O9
I/O8
General Description
Pin Configurations
SDA
SCL
AD1
AD2
INT
V+
19
20
21
22
23
24
18
1
Applications
17
2
MAX7318ATG
THIN QFN
16
3
15
4
2
C-compatible
14
5
13
6
12
11
10
9
8
7
I/O10
I/O9
I/O8
GND
I/O7
I/O6
♦ 400kbps I
♦ 2V to 5.5V Operation
♦ 5.5V Overvoltage-Tolerant I/Os
♦ Supports Hot Insertion
♦ 16 I/O Pins that Default to Inputs on Power-Up
♦ 100kΩ Pullup on Each I/O
♦ Open-Drain Interrupt Output (INT)
♦ Noise Filter on SCL/SDA Inputs
♦ 64 Slave ID Addresses Available
♦ Low Standby Current (5.4µA typ)
♦ Polarity Inversion
♦ 4mm
♦ -40°C to +125°C Operation
SMBus is a trademark of Intel Corp.
MAX7318AWG -40°C to +125°C 24 Wide SO
MAX7318AAG
MAX7318ATG
MAX7318AUG
PART
4mm, 0.8mm Thin QFN Package
2
C-Compatible Serial Interface
-40°C to +125°C 24 SSOP
-40°C to +125°C
-40°C to +125°C 24 TSSOP
TEMP RANGE
Ordering Information
PIN-PACKAGE
24 Thin QFN
(4mm
4mm)
Features
T2444-4
CODE
PKG
1

Related parts for MAX7318AWG-T

MAX7318AWG-T Summary of contents

Page 1

... Noise Filter on SCL/SDA Inputs ♦ 64 Slave ID Addresses Available ♦ Low Standby Current (5.4µA typ) ♦ Polarity Inversion ♦ 4mm ✕ ♦ -40°C to +125°C Operation Applications PART MAX7318AWG -40°C to +125°C 24 Wide SO MAX7318AAG MAX7318ATG MAX7318AUG SMBus is a trademark of Intel Corp ...

Page 2

I/O Port Expander with Interrupt and Hot-Insertion Protection ABSOLUTE MAXIMUM RATINGS V+ to GND ................................................................-0.3V to +6V I/O0–I/O15 as Inputs ....................................(GND - 0.3V) to +6V SCL, SDA, AD0, AD1, AD2, INT...................(GND - 0.3V) to +6V Maximum V+ Current......................................................+250mA ...

Page 3

I/O Port Expander with Interrupt and Hot-Insertion Protection DC ELECTRICAL CHARACTERISTICS (continued) ( 5.5V -40°C to +125°C, unless otherwise noted. Typical values are 3.3V PARAMETER SYM B O ...

Page 4

I/O Port Expander with Interrupt and Hot-Insertion Protection (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE 100 f = 400kHz SCL 90 ALL I/Os UNLOADED 3.3V ...

Page 5

I/O Port Expander with Interrupt and Hot-Insertion Protection (T = +25°C, unless otherwise noted.) A I/O SOURCE CURRENT vs. OUTPUT HIGH VOLTAGE -40° +25° ...

Page 6

I/O Port Expander with Interrupt and Hot-Insertion Protection AD0 AD1 AD2 SCL SDA N V+ Figure 1. Block Diagram SDA t SU,DAT t LOW SCL t HIGH t HD,STA t R START CONDITION Figure 2. 2-Wire Serial Interface ...

Page 7

I/O Port Expander with Interrupt and Hot-Insertion Protection SDA S SCL START CONDITION Figure 3. START and STOP Conditions SDA SCL Figure 4. Bit Transfer START CONDITION SCL SDA BY TRANSMITTER S SDA BY RECEIVER Figure 5. Acknowledge ...

Page 8

I/O Port Expander with Interrupt and Hot-Insertion Protection generates the acknowledge bit since the MAX7318 is the recipient. When the MAX7318 is transmitting to the master, the master generates the acknowledge bit. The MAX7318 has a 7-bit-long slave ...

Page 9

I/O Port Expander with Interrupt and Hot-Insertion Protection The MAX7318’s eight registers are configured to oper- ate as four register pairs: input ports, output ports, polarity inversion ports, and configuration ports. After sending 1 byte of data to ...

Page 10

I/O Port Expander with Interrupt and Hot-Insertion Protection Data is clocked into a register on the falling edge of the acknowledge clock pulse. After reading the first byte, additional bytes may be read and reflect the content in ...

Page 11

I/O Port Expander with Interrupt and Hot-Insertion Protection Table 2. Registers 0x00, 0x01—Input Port Registers I7 BIT I15 I14 Table 3. Registers 0x02, 0x03—Output Port Registers O7 BIT O15 O14 Power-up default 1 Table 4. Registers 0x04, 0x05—Polarity ...

Page 12

I/O Port Expander with Interrupt and Hot-Insertion Protection Table 6. MAX7318 Address Map AD2 AD1 AD0 GND SCL GND GND SCL V+ GND SDA GND GND SDA V+ V+ SCL GND V+ SCL V+ V+ SDA GND V+ ...

Page 13

I/O Port Expander with Interrupt and Hot-Insertion Protection Table 6. MAX7318 Address Map (continued) AD2 AD1 AD0 SCL SCL GND SCL SCL V+ SCL SDA GND SCL SDA V+ SDA SCL GND SDA SCL V+ SDA SDA GND ...

Page 14

I/O Port Expander with Interrupt and Hot-Insertion Protection (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 TOP VIEW ...

Page 15

I/O Port Expander with Interrupt and Hot-Insertion Protection (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 NOTES: ...

Page 16

I/O Port Expander with Interrupt and Hot-Insertion Protection (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.) 16 ______________________________________________________________________________________ Package Information (continued) PACKAGE OUTLINE, ...

Page 17

I/O Port Expander with Interrupt and Hot-Insertion Protection (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.) ______________________________________________________________________________________ Package Information (continued) 17 ...

Page 18

I/O Port Expander with Interrupt and Hot-Insertion Protection (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.) 18 ______________________________________________________________________________________ Package Information (continued) ...

Page 19

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19 © 2007 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc ...

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