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Product Detailed Parameters
- Description：IC XPNDR 400KHZ I2C 24TQFN
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Number of I/O：8
- Interface：I2C
- Interrupt Output：Yes
- Features：POR
- Output Type：Push-Pull
- Current - Output Source/Sink：20mA
- Clock Frequency：400 kHz
- Voltage - Supply：1.71V ~ 5.5V
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-TQFN (4x4)
- Grade：-
- Qualification：-
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Overview
The MAX7324ATG+ is a 2-wire serial-interfaced peripheral featuring 16 I/O ports, divided into eight push-pull outputs and eight inputs. It operates from a +1.71V to +5.5V supply voltage with a maximum serial-clock frequency of 400kHz. The device includes latching transition detection for inputs, overvoltage protection up to +6V, and selectable internal pullups. It utilizes two address inputs (AD0, AD2) to support 16 unique I2C slave addresses. The component is specified over the -40°C to +125°C automotive temperature range and is housed in a 24-pin TQFN package.
Feature Summary
- Eight push-pull outputs rated at 20mA capable of driving LEDs
- Eight input ports with maskable, latching transition detection
- Input ports feature overvoltage protection to +6V
- Low standby current of 0.6µA when interface is idle
Applications
- Cell Phones
- SAN/NAS
- Servers
- Notebooks
- Satellite Radio
Procurement Notes
Verify the specific suffix ATG+ corresponds to the 24-pin TQFN-EP package and -40°C to +125°C temperature range. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors before procurement. Ensure the ordering information matches the exact pin configuration required for the target design.
Selection Notes
Select this part for designs requiring simultaneous push-pull outputs and monitored inputs on a single I2C bus. Verify that the system voltage falls within the 1.71V to 5.5V operating range. Consider the 16 available slave addresses if multiple expanders are needed on the same bus. Ensure the application can accommodate the 24-pin TQFN footprint.
Part Context
The MAX7324ATG+ belongs to the MAX7324–MAX7327 family of pin-compatible port expanders. It specifically integrates eight push-pull outputs and eight inputs with interrupt masking. Other family members offer different combinations of open-drain I/O and push-pull outputs while maintaining the same package and interface compatibility.
Replacement Considerations
The MAX7324AEG+ serves as a pin-compatible alternative in a 24-pin QSOP package. Both devices share identical electrical characteristics and functionality but differ in physical packaging. Verify board space constraints when substituting between TQFN and QSOP formats.
