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MAX7370 Datasheet 8 x 8 Key-Switch Controller and LED Driver/GPIOs

Manufacturer: Maxim Integrated (now Analog Devices)

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General Description

The MAX7370 I2C-interfaced peripheral provides microprocessors with management of up to 64 key switches, with optional GPIO and PWM-controlled LED drivers.

The key-switch drivers interface with metallic or resistive switches with on-resistances up to 5kI.

Key inputs are monitored statically, not dynamically, to ensure low-EMI operation.

Overview

EVALUATION KIT AVAILABLE MAX7370 8 x 8 Key-Switch Controller and LED Driver/GPIOs with I2C Interface and High Level of ESD.

Key Features

  • autosleep and autowake modes to further minimize the power consumption of the device. The autosleep feature puts the device in a low-power state (1µA typ) after a timeout period. The autowake feature configures the device to return to normal operating mode from sleep upon a keypress. The key controller debounces and maintains a FIFO buffer of keypress and release events (including autorepeat, if enabled). An interrupt (INT) output can be configured to alert keypresses, as they occur, or at the m.

More Datasheets from Maxim Integrated (now Analog Devices)

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