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参数资料
| 型号： | MAX7359EWA+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PBGA25 |
| 封装： | 2.31 X 2.31 MM, ROHS COMPLIANT, WLP-25 |
| 文件页数： | 1/20页 |
| 文件大小： | 176K |
| 代理商： | MAX7359EWA+ |
General Description
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 5k
of resistance.
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 (1A typ) after a sleep timeout period. The
autowake feature configures the MAX7359 to return to
normal operating mode from sleep upon a key press.
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.
Any of the column drivers (COL2/PORT2–COL7/PORT7)
or the INT, if not used, can function as a general-pur-
pose output (GPO).
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.
Applications
Cell Phones
PDAs
Handheld Games
Portable Consumer Electronics
Features
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 1A Sleep Current
o FIFO Queues Up to 16 Debounced Key Events
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
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
o Small, 24-Pin TQFN Package (3.5mm x 3.5mm) , or
25-Pin WLP Package (2.31mm x 2.31mm)
MAX7359
2-Wire Interfaced Low-EMI
Key Switch Controller/GPO
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-0850; Rev 4; 6/10
EVALUATION
KIT
AVAILABLE
PART
TEMP RANGE
PIN-PACKAGE
MAX7359ETG+
-40°C to +85°C
24 TQFN-EP*
MAX7359EWA+
-40°C to +85°C
25 WLP
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
EP = Exposed pad.
MAX7359
VCC
COL_
GND
8
SCL
SDA
AD0
ROW_
8
SWITCH
ARRAY,
UP TO 64
SWITCHES
INPUT
+1.62V TO +3.6V
INT
Typical Application Circuits
Typical Application Circuits continued at end of data sheet.
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.
Pin Configurations
MAX7359
19
20
21
22
1
2
34
56
18
17
16
15
14
13
23
24
12
11
10
9
8
7
INT
N.C.
VCC
COL7/PORT7
ROW1
ROW2
ROW3
COL3/PORT3
COL4/PORT4
ROW4
ROW5
SCL
SDA
GND
I.C.
COL0
ROW0
COL1
COL5/PORT5
COL2/PORT2
COL6/PORT6
ROW6
ROW7
AD0
TOP VIEW
TQFN
(3.5mm x 3.5mm)
+
EP*
*EP = EXPOSED PAD.
×
Pin Configurations continued at end of data sheet.
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| MAX7391BMVB | 12 MHz, OTHER CLOCK GENERATOR, PDSO8 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7359EWA+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX7359EWA+T | 功能描述:外围驱动器与原件 - PCI 2-WIRE IF LO-EMI KEY SWITCH CNTRLR RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| MAX735C/D | 功能描述:电流型 PWM 控制器 -5V Inverting Current-Mode PWM Regulator RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX735CPA | 功能描述:直流/直流开关调节器 5V- Inverting DC/DC Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX735CPA+ | 功能描述:直流/直流开关调节器 5V- Inverting DC/DC Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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