MAX7313 is a 16-bit I/O port, which can be configured as open-drain output or logic input.
The MAX7313 is a 16‑port I/O expander with integrated 8‑bit PWM LED intensity control, per‑port 4‑bit adjustment, and a 17th configurable interrupt/general‑purpose port. It operates over a 2 V‑3.6 V supply range, supports up to 64 I²C addresses, and includes hot‑insertion protection.
Typical applications include LCD backlights, LED status indication, keypad backlights, RGB LED drivers, and notebook computers. The device is offered in a 4 mm × 4 mm Thin QFN package and meets an operating temperature range of –40 °C to +125 °C.
| Number of I/O ports | 16 (plus a 17th interrupt/general‑purpose port) |
|---|---|
| Operating supply voltage | 2 V to 3.6 V |
| Temperature range | –40 °C to +125 °C |
| PWM resolution | 8‑bit global, 4‑bit per output |
| Package | 4 mm × 4 mm Thin QFN |
The MAX7313 is controlled through a 2‑wire I²C/SMBus serial interface.
It operates from –40 °C to +125 °C.