MAX1609EEE+T Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The MAX1609EEE+T is an octal SMBus-to-parallel I/O expander from Analog Devices providing 8 bidirectional I/O lines via a 2-wire SMBus interface. In a 16-pin QSOP package, it is used to expand GPIO resources on microcontroller-based systems with minimal bus wiring.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- MAX1609EEE+T Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8 bidirectional I/O lines accessible over a 2-wire SMBus interface
- SMBus protocol compliance for host microcontroller I/O expansion
- Interrupt output to notify host of input state changes
- Configurable I/O direction per pin for flexible port use
- 16-pin QSOP-150 package for space-constrained PCB designs
- REACH compliant and compatible with standard SMBus controllers
Applications
The MAX1609EEE+T is used in server management systems, industrial control panels, and embedded computing boards where additional GPIO is needed without consuming extra microcontroller pins. Its SMBus interface allows multiple I/O expanders to share a single 2-wire bus, enabling scalable I/O expansion for LED control, button scanning, relay driving, and status monitoring in dense board designs.
Specifications
| Manufacturer Package Code | 16-QSOP-150_MIL |
| Reach Compliance Code | Compliant |
| Date Of Intro | 2000-01-01 |
| YTEOL | 9 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 8 |
| Number of Ports | 0 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.018mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.635mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | PARALLEL IO PORT, GENERAL PURPOSE |
| Package | Small Outline Packages |
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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many I/O lines does MAX1609EEE+T provide and over which bus interface are they accessed?
The MAX1609EEE+T provides 8 bidirectional I/O lines, all accessible over a 2-wire SMBus interface. This allows a host microcontroller or processor to control 8 additional digital I/O signals using only 2 wires, which is particularly useful in server management controllers and embedded boards where GPIO pins are limited.
Can multiple MAX1609EEE+T devices share the same SMBus for larger I/O expansion?
Yes, multiple MAX1609EEE+T devices can be connected to a single SMBus using different 7-bit I2C/SMBus addresses, enabling expansion to 16, 24, or more I/O lines on a single 2-wire bus. This is common practice in server baseboard management controllers (BMCs) where dozens of status signals and control lines need management over a shared bus.
Does MAX1609EEE+T support interrupt-driven I/O to alert the host of external input changes?
Yes, the MAX1609EEE+T provides an active-low interrupt output that asserts when any input pin changes state. This allows the host processor to respond to GPIO state changes without continuously polling the device over the SMBus, reducing CPU overhead and bus utilization in event-driven embedded control designs.
What package does MAX1609EEE+T use and how compact is it for tight PCB layouts?
The MAX1609EEE+T is housed in a 16-pin QSOP-150 package (Quad Small Outline Package) with a 0.635 mm lead pitch and a body width of 150 mil (3.81 mm). This compact footprint is well-suited for high-density PCBs in server management modules, industrial controllers, and communication equipment where board space is at a premium.
Is MAX1609EEE+T REACH compliant for use in products requiring environmental regulatory approval?
Yes, the MAX1609EEE+T carries REACH compliance status and is supplied in a tape-and-reel format (the +T suffix). This makes it suitable for product designs requiring compliance with EU REACH chemical regulations, and the tape-and-reel packaging supports automated SMT assembly lines in volume production environments.
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Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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