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MAX7300AGL
Analog Devices Inc./Maxim Integrated
MULTI-PORT I/O EXPANDER
3273 Pcs New Original In Stock
I/O Expander 28 I2C, 2-Wire Serial 400 kHz 40-SQFN (6x6)
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (341 Ratings)
MAX7300AGL
Product Overview
9198188
DiGi Electronics Part Number
MAX7300AGL-DGManufacturer
Analog Devices Inc./Maxim Integrated
MAX7300AGL
Description
MULTI-PORT I/O EXPANDERInventory
3273 Pcs New Original In Stock
I/O Expander 28 I2C, 2-Wire Serial 400 kHz 40-SQFN (6x6)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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MAX7300AGL Technical Specifications
Category
Interface, I/O Expanders
Packaging
Bulk
Series
-
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Number of I/O
28
Interface
I2C, 2-Wire Serial
Interrupt Output
Yes
Features
-
Output Type
Open Drain, Push-Pull
Current - Output Source/Sink
4.5mA, 10mA
Clock Frequency
400 kHz
Voltage - Supply
2.5V ~ 5.5V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
40-VFQFN Exposed Pad
Supplier Device Package
40-SQFN (6x6)
Datasheet & Documents
HTML Datasheet
MAX7300AGL-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Affected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
2156-MAX7300AGL
MAXMAXMAX7300AGL
Standard Package
57
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
L’emballage chez DiGi Electronics est toujours très bien fait, garantissant la sécurité. Les prix sont aussi très compétitifs, ce qui me convient parfaitement.
December 02, 2025
Schnelle Ankunft und alles wurde sicher verpackt!
December 02, 2025
I received my order earlier than expected, thanks to their reliable logistics system.
December 02, 2025
The honest pricing approach fosters a trustworthy shopping environment.
December 02, 2025
Their logistics tracking system is among the best I’ve used, very precise and easy to access.
December 02, 2025
Their support services have helped me maximize the value of my purchases.
December 02, 2025
The packaging quality is consistently high, showing their attention to detail.
December 02, 2025
DiGi Electronics' products help me save money without sacrificing quality.
December 02, 2025
I feel confident purchasing from DiGi Electronics because of their consistent quality.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the MAX7300AGL in a high-temperature industrial environment near 125°C?
When designing the MAX7300AGL into systems operating near its maximum 125°C rating, thermal derating and PCB layout become critical. The 40-SQFN (6x6) package has an exposed pad that must be properly soldered to a thermal ground plane to ensure reliable heat dissipation. Poor thermal design can lead to localized overheating, increased I/O leakage, and reduced long-term reliability. Additionally, ensure I2C pull-up resistors are sized to maintain signal integrity at elevated temperatures where bus capacitance effects are more pronounced. Use controlled impedance routing and minimize trace lengths to prevent timing violations at 400 kHz operation.
How does the MAX7300AGL compare to the PCA9557D that fails intermittently in my I2C system?
The MAX7300AGL offers improved noise immunity and tighter DC specs compared to the PCA9557D, especially in systems with supply voltage fluctuations between 2.5V and 5.5V. Unlike the PCA9557D, the MAX7300AGL supports both open-drain and push-pull output configurations per port, allowing better compatibility with mixed-load systems. If the PCA9557D fails due to I2C bus contention or weak drive strength, the MAX7300AGL's 10mA sink capability and integrated glitch filters (on address pins) can mitigate such issues. However, note that the MAX7300AGL is RoHS non-compliant, which may affect export or compliance-sensitive designs.
Can the MAX7300AGL safely replace the TCA6424A in a mixed-voltage system with 3.3V and 5V logic levels?
Yes, the MAX7300AGL can interface with both 3.3V and 5V logic when powered from a 5V supply due to its input voltage-tolerant I/Os up to 5.5V. Unlike the TCA6424A, which requires strict level-shifting outside its 1.65V–5.5V VDD range, the MAX7300AGL maintains robust performance across full-rail operation. However, ensure that any connected 3.3V-only devices on shared I2C lines are not exposed to 5V when the MAX7300AGL is powered at 5V. Use external level shifters on bi-directional lines if VDD_I2C is lower than the MAX7300AGL’s VCC to avoid overvoltage stress.
What should I watch for in terms of I2C bus loading when integrating the MAX7300AGL with multiple slave devices?
When integrating the MAX7300AGL into a multi-slave I2C bus, cumulative bus capacitance is a major concern. The MAX7300AGL supports 400 kHz operation, but with up to 28 I/Os, parasitic capacitance from unused or poorly terminated lines can exceed the 400 pF I2C limit. Use the MAX7300AGL’s programmable pull-up/pull-down resistors on individual ports to minimize floating inputs. Terminate unused I/Os to GND or VCC through 10kΩ resistors and keep I2C trace lengths short. If bus errors occur, reduce the clock frequency below 400 kHz or add an I2C buffer such as the PCA9615 for heavy loads.
Is the RoHS non-compliance of the MAX7300AGL a reliability risk in long-life embedded designs?
The RoHS non-compliance of the MAX7300AGL implies it may contain lead in its finish, which can improve long-term solder joint reliability in thermal cycling environments—common in industrial applications. While this may conflict with environmental regulations, the eutectic solder formed with leaded finishes often outperforms lead-free joints in durability, especially on fine-pitch packages like the 40-SQFN (6x6). However, ensure your manufacturing process and supply chain support leaded components, and verify MSL 3 handling (max 168-hour floor life) to avoid popcorn cracking during reflow. For export or consumer markets, consider the MAX7300A version if a RoHS-compliant alternative becomes available.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MAX7300AGL CAD Models
Analog Devices Inc./Maxim Integrated MAX7300AGL PCB symbols & footprints
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