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Analog Devices MAX7313AEG+T — DC-DC Power Modules

MAX7313AEG+T I²C/SMBus GPIO Expander, 16 I/O, PWM, 400kHz

MPNMAX7313AEG+T
End of Life

Maxim Integrated MAX7313AEG+T, 16-bit I²C/SMBus GPIO expander with PWM, open-drain outputs, interrupt output, 400 kHz clock, 2V-3.6V supply, -40°C to +125°C, 24-QSOP package.

$6.53Ref. price · indicative, final on quote
Packaging24-SSOP (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX7313AEG+T specifications
ParameterValue
Output typeOpen Drain
MountingSurface Mount
Supply voltage2V ~ 3.6V
Current - output source (Sink)50mA
Clock frequency400 kHz
InterfaceI²C, SMBus
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesPWM
Number of i (O)16
Case24-SSOP (0.154\", 3.90mm Width)
Interrupt outputYes

Product details

The PWM feature allows each output to generate a variable-duty-cycle waveform, which is useful for dimming LEDs or controlling fan speed without a separate PWM controller. The interrupt output lets the host MCU sleep until an input changes, saving power in battery-operated designs. Together, these features can eliminate a dedicated PWM generator and reduce the MCU's polling overhead, simplifying firmware and lowering the component count.

The MAX7313AEG+T is supplied in a 24-pin QSOP package with a 0.154-inch body width and 3.90 mm width. The QSOP footprint is smaller than a standard SOIC-24, saving board area in dense layouts.

Frequently asked questions

Does MAX7313AEG+T support interrupt output?

Yes, the MAX7313AEG+T includes a programmable interrupt output that asserts when any input changes state, allowing the host MCU to avoid continuous polling.

Does MAX7313AEG+T support both I²C and SMBus?

Yes, the interface is compatible with both I²C and SMBus, operating at a clock frequency of 400 kHz.

Can MAX7313AEG+T replace PCA9535?

Both parts are 16-bit I²C GPIO expanders, but the MAX7313AEG+T adds PWM on each output and a wider temperature range. The PCA9535 lacks PWM and is typically specified for 0°C to 70°C. Pin compatibility depends on the specific package variant — verify the pinout against your PCB layout before substitution.