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MAX7370ETG+

键开关控制器与LED驱动器, 1.62 V至3.6 V输入, TQFN-24

MAXIM INTEGRATED PRODUCTS MAX7370ETG+
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制造商产品编号:
MAX7370ETG+
库存编号
2517277
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产品概述

The MAX7370ETG+ is an 8 x 8 key-switch controller and LED driver/GPIOs with I2C interface and high level of ESD protection in 24 pin TQFN package. The 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 5Kohm. The IC features autosleep and autowake modes. 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. An interrupt output can be configured to alert key presses as they occur or at the maximum rate. The same index rows and columns in device can be used as direct logic-level translator. If device is not used for key-switch control all keyboard pins can be used as GPIOs.
  • Supply voltage range is 1.62V to 3.6V
  • Operating temperature range from -40°C to 85°C
  • ±8KV IEC 61000-4-2 contact discharge, ±15KV IEC 61000-4-2 air-gap discharge
  • Key inputs are monitored statically, not dynamically to ensure low EMI operation
  • 256 step PWM individual LED intensity control accuracy
  • Individual LED blink rates and common LED fade in/out rates from 256ms to 4096ms
  • FIFO queues up to 16 debounced key events
  • User configurable keypress and release debounce time (2ms to 32ms)
  • Key switch interrupt (INT) on each debounced event/FIFO level or end of definable time period
  • 5V tolerant, open drain I/O ports capable of constant current LED drive

应用

传感与仪器, 便携式器材, 消费电子产品

警告

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

产品信息

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:
按键开关控制器和LED驱动器

:
1.62V

:
3.6V

:
TQFN

:
24引脚

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 -无限制
查找类似产品 选择并修改以上属性即可查找类似产品。

技术文档 (1)

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Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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