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MAX7370ETG+

更新时间： 2024-11-30 11:51:27

品牌	Logo	应用领域
美信 - MAXIM		驱动器开关控制器
页数	文件大小	规格书
37页	1846K
描述
8 x 8 Key-Switch Controller and LED Driver/GPIOs

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MAX7370ETG+ 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	VSON, LCC24,.13SQ,16	针数：	24
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.31.00.01	Factory Lead Time：	6 weeks
风险等级：	1.83	接口集成电路类型：	INTERFACE CIRCUIT
JESD-30 代码：	S-PDSO-N24	长度：	3.5 mm
功能数量：	1	端子数量：	24
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	VSON
封装等效代码：	LCC24,.13SQ,16	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, VERY THIN PROFILE	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	1.8/3.3 V	认证状态：	Not Qualified
座面最大高度：	0.85 mm	子类别：	Display Drivers
最大供电电压：	3.6 V	最小供电电压：	1.62 V
标称供电电压：	3.3 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子节距：	0.4 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	3.5 mm	Base Number Matches：	1

MAX7370ETG+ 数据手册

19-5950; Rev 1; 3/12

E V A L U A T I O N K I T A V A I L A B L E

MAX7370

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

with I C Interface and High Level of ESD Protection

General Description

Features

S Monitors Up to 64 Keys

The MAX7370 I C-interfaced peripheral provides micro-

processors with management of up to 64 key switches,

with optional GPIO and PWM-controlled LED drivers.

S Integrated High-ESD Protection

±±8k IEꢀ 61ꢁꢁꢁ-4-ꢂ ꢀontact Discharge

±1ꢃ8k IEꢀ 61ꢁꢁꢁ-4-ꢂ ꢄir-ꢅap Discharge

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. 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.

S Keyscan Uses Static Matrix Monitoring for

Low-EMI Operation

S Four LED Driver Pins on ꢀOL7–ꢀOL4

S ꢃk Tolerant, Open-Drain I/O Ports ꢀapable of

ꢀonstant-ꢀurrent LED Drive

S ꢂꢃ6-Step PWM Individual LED Intensity-ꢀontrol

ꢄccuracy

S Individual LED Blin8 Rates and ꢀommon LED

The key controller debounces and maintains a FIFO

buffer of keypress and release events (including auto-

repeat, if enabled). An interrupt (INT) output can be

configured to alert keypresses, as they occur, or at the

maximum rate.

Fade In/Out Rates from ꢂꢃ6ms to 4ꢁ96ms

S FIFO Queues Up to 16 Debounced Key Events

S User-ꢀonfigurable Keypress and Release

Debounce Time (ꢂms to 3ꢂms)

The same index rows and columns in the device can be

used as a direct logic-level translator.

S Key-Switch Interrupt (INT) on Each Debounced

Event/FIFO Level, or End-of-Definable Time Period

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-currentandPWMintensitycontrol. Themaximum

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.

S 1.6ꢂk to 3.6k Operating Supply koltage

S Individually Programmable ꢅPIOs to Two Logic

Levels

S ±-ꢀhannel Individual Programmable Level

Translators

S Provides Optional ꢅPIOs on all ROW� and ꢀOL�

Pins

S Supports Hot Insertion

S 4ꢁꢁ8bps, ꢃ.ꢃk Tolerant I^ꢂꢀ Serial Interface with

Selectable Bus Timeout

The device is offered in a 24-pin (3.5mm x 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.

Ordering Information appears at end of data sheet.

Typical Operating Circuit

+5V

+1.8V

+2.6V

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

temperature range.

Applications

MAX7370

COL4

COL5

COL6

COL7

Cell Phones

INT

I/O

Notebooks

SDA

SCL

MCU

PDAs

AD0

ROW[0:7]

COL[0:3]

Handheld Games

Portable Consumer Electronics

GND

For related parts and recommended products to use with this part,

32 KEYS

refer to www.maxim-ic.com/MAX7370.related.

�� Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...37

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MAX7370ETG+ 替代型号

型号	品牌	替代类型	描述	数据表
MAX7302AEE+T	MAXIM	类似代替	Interface Circuit, BICMOS, PDSO16, LEAD FREE, MO-137, QSOP-16
MAX7370ETG+T	MAXIM	类似代替	Interface Circuit, BICMOS, 3.50 X 3.50 MM, ROHS COMPLIANT, TQFN-24
MAX7302AEE+	MAXIM	类似代替	SMBus/I2C Interfaced 9-Port, Level-Translating GPIO and LED Driver with CLA

与MAX7370ETG+相关器件

型号	品牌	获取价格	描述	数据表
MAX7370ETG+T	MAXIM	获取价格	Interface Circuit, BICMOS, 3.50 X 3.50 MM, ROHS COMPLIANT, TQFN-24
MAX7370EWA	MAXIM	获取价格	8 x 8 Key-Switch Controller and LED Driver/GPIOs with I2C Interface and High Level of ESD
MAX7370EWA+	MAXIM	获取价格	8 x 8 Key-Switch Controller and LED Driver/GPIOs
MAX7370EWA+T	MAXIM	获取价格	Interface Circuit, BICMOS, PBGA25, 2.159 X 2.159 MM, ROHS COMPLIANT, WLP-25
MAX7375	MAXIM	获取价格	3-Pin Silicon Oscillator
MAX7375	ADI	获取价格	3引脚硅振荡器
MAX7375_V01	MAXIM	获取价格	3-Pin Silicon Oscillator
MAX7375AUR105-T	MAXIM	获取价格	3-Pin Silicon Oscillator
MAX7375AUR185+T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO3, TO-236-AB, SOT-23, 3 PIN
MAX7375AUR185-T	MAXIM	获取价格	3-Pin Silicon Oscillator

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