MAX7312ATG+T Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock

Name: MAX7312ATG+T
Brand: Analog Devices
SKU: MAX7312ATG+T
Availability: InStock

MAX7312ATG+T is a Maxim/Analog Devices 16-bit I/O port expander using a 2-wire I2C interface with interrupt output and hot-insertion protection. It provides 2 ports of 8 I/O lines each, configurable as inputs or outputs. Packaged in a 24-pin LFCSP (4×4×0.75 mm) for compact expansion of microcontroller GPIO.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MAX7312ATG+TQuad Flat No-Lead

Quick Facts

Manufacturer: Analog Devices
Package: Quad Flat No-Lead
Pin Count: 24
Lifecycle: ACTIVE
Datasheet: MAX7312ATG+T Datasheet PDF
Category: Integrated Circuit
Price: From $4.2614(MOQ 500)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of MAX7312ATG+T?

16-bit I2C I/O expansion across 2 independent 8-bit ports for flexible GPIO augmentation
Interrupt output pin notifies host MCU on input state change, reducing polling overhead
Hot-insertion protection allows safe board insertion without resetting or damaging connected I/O devices
2-wire I2C interface up to 400 kHz for easy connection to standard MCU buses
Individual pin direction control per the 16 I/O lines enabling mixed input/output configurations
24-pin LFCSP 4×4×0.75 mm package for compact PCB footprint

What is MAX7312ATG+T used for?

MAX7312ATG+T is used in industrial control panels, server management boards, and display systems where microcontrollers lack sufficient GPIO. Its hot-insertion protection makes it particularly suitable for hot-swappable backplane I/O modules and field-replaceable PCB assemblies where power may be present during board insertion.

What are the specifications of MAX7312ATG+T?

Manufacturer Package Code	24-LFCSP-4X4X0.75
Reach Compliance Code	Compliant
Date Of Intro	2003-11-14
YTEOL	10
JESD-30 Code	S-PQCC-N24
JESD-609 Code	e3
Number of I/O Lines	16
Number of Ports	2
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	LCC24,.16SQ,20
Package Shape	SQUARE
Package Style	CHIP CARRIER, VERY THIN PROFILE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Current-Max	0.01mA
Supply Voltage-Max	5.5V
Supply Voltage-Min	2V
Supply Voltage-Nom	3.3V
Surface Mount	YES
Technology	BICMOS
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn) - annealed
Terminal Form	NO LEAD
Terminal Pitch	0.5mm
Terminal Position	QUAD
Time@Peak Reflow Temperature-Max (s)	30
uPs/uCs/Peripheral ICs Type	PARALLEL IO PORT, GENERAL PURPOSE
Package	Quad Flat No-Lead

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.60
Country of Origin	Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

Where can I find the MAX7312ATG+T datasheet?

MAX7312ATG+T Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for MAX7312ATG+T?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

How many I2C address configurations does MAX7312ATG+T support on a single bus?

MAX7312ATG+T supports multiple address combinations through its address pins, allowing several devices to coexist on a single 400 kHz I2C bus, enabling expansion to 64 or more I/O lines by stacking multiple expanders.

What makes the hot-insertion protection on MAX7312ATG+T important for backplane designs?

The hot-insertion protection clamps transient currents during live board insertion events, preventing latch-up or damage to the 16 I/O lines and the host I2C bus when the device is plugged into a powered backplane with active 5 V or 3.3 V I/O levels.

How does the INT output pin on MAX7312ATG+T improve MCU efficiency in input-monitoring applications?

The open-drain INT pin asserts low whenever any of the 16 input lines changes state, allowing the MCU to sleep and respond only on interrupts rather than polling all 16 inputs over I2C, reducing CPU wake cycles and bus traffic.

Can MAX7312ATG+T mix input and output lines on the same port in a real design?

Yes. Each of the 16 I/O lines has an independent direction register bit, so designers can configure any combination of inputs and outputs across the two 8-bit ports, for example using 10 pins as outputs and 6 pins as inputs in the same device.

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AvailabilityIn Stock

Reference Price (USD)

From $4.2614

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
500+	$4.4869	$2243.46
1000+	$4.3772	$4377.20
2500+	$4.2614	$10653.50

pcs

Unit price: $4.4869 · Total: $2243.46

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Lead Time3-7 business days

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OriginChina (Authorized)

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MAX7312ATG+T Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock

What are the key features of MAX7312ATG+T?

What is MAX7312ATG+T used for?

What are the specifications of MAX7312ATG+T?

Compliance & Regulatory

Where can I find the MAX7312ATG+T datasheet?

What are equivalent replacements for MAX7312ATG+T?

Frequently Asked Questions

How many I2C address configurations does MAX7312ATG+T support on a single bus?

What makes the hot-insertion protection on MAX7312ATG+T important for backplane designs?

How does the INT output pin on MAX7312ATG+T improve MCU efficiency in input-monitoring applications?

Can MAX7312ATG+T mix input and output lines on the same port in a real design?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Analog Devices

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