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MAX7359BETG+

更新时间： 2024-09-17 21:16:55
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理外围集成电路
页数 文件大小 规格书
20页 169K
描述
Microprocessor Circuit, BICMOS, TQFN-24

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MAX7359BETG+ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete包装说明：HVQCCN,
Reach Compliance Code：compliantHTS代码：8542.31.00.01
风险等级：5.78JESD-30 代码：S-XQCC-N24
长度：3.5 mm湿度敏感等级：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：UNSPECIFIED
封装代码：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
座面最大高度：0.8 mm最大供电电压：3.6 V
最小供电电压：1.62 V标称供电电压：2.5 V
表面贴装：YES技术：BICMOS
温度等级：INDUSTRIAL端子面层：NOT SPECIFIED
端子形式：NO LEAD端子节距：0.4 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.5 mmuPs/uCs/外围集成电路类型：MICROPROCESSOR CIRCUIT
Base Number Matches：1

MAX7359BETG+ 数据手册

 浏览型号MAX7359BETG+的Datasheet PDF文件第2页浏览型号MAX7359BETG+的Datasheet PDF文件第3页浏览型号MAX7359BETG+的Datasheet PDF文件第4页浏览型号MAX7359BETG+的Datasheet PDF文件第5页浏览型号MAX7359BETG+的Datasheet PDF文件第6页浏览型号MAX7359BETG+的Datasheet PDF文件第7页 
19-0850; Rev 4; 6/10  
2-Wire Interfaced Low-EMI  
Key Switch Controller/GPO  
MAX7359  
General Description  
Features  
The MAX7359 I2C interfaced peripheral provides micro-  
processors with management of up to 64 key switches.  
Key codes are generated for each press and release of  
a key for easier implementation of multiple key entries.  
Key inputs are monitored statically, not dynamically, to  
ensure low-EMI operation. The switches can be metallic  
or resistive (carbon) with up to 5kΩ of resistance.  
o Optional Key Release Detection on All Keys  
o Monitor Up to 64 Keys  
o +1.62V to +3.6V Operation  
o Autosleep and Autowake to Minimize Current  
Consumption  
o Under 1µA Sleep Current  
o FIFO Queues Up to 16 Debounced Key Events  
The MAX7359 features autosleep and autowake to fur-  
ther minimize the power consumption of the device.  
The autosleep feature puts the device in a low-power  
state (1µA typ) after a sleep timeout period. The  
autowake feature configures the MAX7359 to return to  
normal operating mode from sleep upon a key press.  
o Key Debounce Time User Configurable from 9ms  
to 40ms  
o Low-EMI Design Uses Static Matrix Monitoring  
o Hardware Interrupt at the FIFO Level or at the End  
of Definable Time Period  
The key controller debounces and maintains a FIFO of  
key-press and release events (including autorepeat, if  
enabled). An interrupt (INT) output can be configured to  
alert key presses either as they occur, or at maximum rate.  
o Up to Seven Open-Drain Logic Outputs Available  
Capable of Driving LEDs  
o 400kbps, 5.5V-Tolerant, 2-Wire Serial Interface  
o Selectable 2-Wire, Serial-Bus Timeout  
o Four I2C Address Choices  
Any of the column drivers (COL2/PORT2–COL7/PORT7)  
or the INT, if not used, can function as a general-pur-  
pose output (GPO).  
o Small, 24-Pin TQFN Package (3.5mm x 3.5mm), or  
25-Pin WLP Package (2.31mm x 2.31mm)  
The MAX7359 is offered in small, 24-pin TQFN (3.5mm x  
3.5mm) and 25-bump WLP (2.31mm x 2.31mm) pack-  
ages for cell phones, pocket PCs, and other portable  
consumer electronic applications. The MAX7359 oper-  
ates over the -40°C to +85°C temperature range.  
Ordering Information  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
24 TQFN-EP*  
25 WLP  
MAX7359ETG+  
MAX7359EWA+  
Applications  
Cell Phones  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
PDAs  
Handheld Games  
Portable Consumer Electronics  
Pin Configurations  
TOP VIEW  
Typical Application Circuits  
18 17 16 15 14 13  
19  
20  
21  
22  
23  
24  
12  
INT  
COL1  
INPUT  
+1.62V TO +3.6V  
V
11 COL2/PORT2  
CC  
8
8
MAX7359  
10  
9
N.C.  
COL5/PORT5  
COL6/PORT6  
V
CC  
COL_  
SWITCH  
ARRAY,  
UP TO 64  
SWITCHES  
MAX7359  
EP*  
COL7/PORT7  
ROW0  
ROW7  
ROW6  
8
ROW_  
ROW1  
7
SCL  
SDA  
+
1
2
3
4
5
6
INT  
AD0  
GND  
TQFN  
(3.5mm x 3.5mm)  
*EP = EXPOSED PAD.  
Pin Configurations continued at end of data sheet.  
Typical Application Circuits continued at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
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.  
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