美信半导体，Maxim官网，Maxim代理商
Maxim(美信半导体,AD)产品型号搜索：
专营Maxim（美信半导体）元器件，强大的现货交付能力，解决您的采购难题
全流程提供Maxim（美信半导体）现货供应链服务
当前位置：美信半导体代理 > > 美信芯片 >> MAX7370
MAX7370技术文档下载：
MAX7370技术文档产品手册下载
MAX7370 - 典型电路框图：
MAX7370典型电路框图
Maxim美信半导体芯片：
承诺原装正品
专营Maxim美信，真正优化您的供应链
Maxim产品 - MAX7370介绍

MAX7370 - 8 x 8键盘开关控制器和LED驱动器/GPIO，带有I²C接口和较高的ESD保护

MAX7370是Maxim美信半导体公司的一款扩展控制器产品，MAX7370是8 x 8键盘开关控制器和LED驱动器/GPIO，带有I²C接口和较高的ESD保护，本站介绍了MAX7370的封装应用图解、特点和优点、功能等，并给出了与MAX7370相关的Maxim元器件型号供参考。

MAX7370 - 8 x 8键盘开关控制器和LED驱动器/GPIO，带有I²C接口和较高的ESD保护 - 扩展控制器 - 8 x 8键盘开关控制器，具有更高的ESD保护 - 美信半导体

产品概述

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 5kΩ. Key inputs are monitored statically, not dynamically, to ensure low-EMI operation. The IC 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 (active-low INT) output can be configured to alert keypresses, as they occur, or at the maximum rate.

The same index rows and columns in the device can be used as a direct logic-level translator.

If the device is not used for key-switch control, all keyboard pins can be used as GPIOs. Each GPIO can be programmed to one of the two externally applied logic voltage levels. Four column ports (COL7–COL4) can also be configured as LED drivers that feature constant-current and PWM intensity control. The maximum constant-current level for each open-drain LED port is 20mA. The intensity of the LED on each open-drain port can be individually adjusted through a 256-step PWM control.

The device is offered in a 24-pin (3.5mm × 3.5mm) TQFN package with an exposed pad, and small 25-bump (2.159mm x 2.159mm) wafer-level package (WLP) for cell phones, pocket PCs, and other portable consumer electronic applications.

The device operates over the -40°C to +85°C extended temperature range.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Monitors Up to 64 Keys
  • Integrated High-ESD Protection
  • ±8kV IEC 61000-4-2 Contact Discharge
  • ±15kV IEC 61000-4-2 Air-Gap Discharge
  • Keyscan Uses Static Matrix Monitoring for Low-EMI Operation
  • Four LED Driver Pins on COL7–COL4
  • 5V Tolerant, Open-Drain I/O Ports Capable of Constant-Current LED Drive
  • 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 (active-low INT) on Each Debounced Event/FIFO Level, or End-of-Definable Time Period
  • 1.62V to 3.6V Operating Supply Voltage
  • Individually Programmable GPIOs to Two Logic Levels
  • 8-Channel Individual Programmable Level Translators
  • Provides Optional GPIOs on all ROW_ and COL_ Pins
  • Supports Hot Insertion
  • 400kbps, 5.5V Tolerant I²C Serial Interface with Selectable Bus Timeout
    • 热门应用
  • 蜂窝电话
  • 手持式游戏机
  • 笔记本电脑
  • PDA
  • 便携式消费类电子
    • 下面可能是您感兴趣的美信半导体公司扩展控制器元器件
    节约时间成本，提高采购效率，Maxim官网授权代理
    Maxim(AD)|Maxim公司|Maxim美信半导体芯片授权国内Maxim代理商
    Maxim公司产品现货专家，订购美信半导体公司产品不限最低起订量，Maxim（美信半导体）产品大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货
    寻找全球Maxim代理商现货货源 - Maxim公司（已被AD亚德诺半导体收购）电子元件在线订购