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LM8333GGR8AXSX/NOPB PDF预览

LM8333GGR8AXSX/NOPB

更新时间： 2024-11-28 11:11:59
品牌 Logo 应用领域
德州仪器 - TI 外围集成电路
页数 文件大小 规格书
26页 863K
描述
移动 I/O 配套支持 Key-Scan、I/O 扩展、PWM 和 ACCESS.bus 主机接口 | NYC | 49 | -40 to 85

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LM8333GGR8AXSX/NOPB 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：BGA
包装说明：TFBGA, BGA49,7X7,20针数：49
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01Factory Lead Time：26 weeks
风险等级：5.59总线兼容性：I2C
JESD-30 代码：S-PBGA-B49JESD-609代码：e1
长度：4 mm湿度敏感等级：1
I/O 线路数量：4端口数量：4
端子数量：49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：TFBGA封装等效代码：BGA49,7X7,20
封装形状：SQUARE封装形式：GRID ARRAY, THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：260电源：2.5 V
认证状态：Not Qualified座面最大高度：1.1 mm
子类别：Other Microprocessor ICs最大压摆率：80 mA
最大供电电压：2.9 V最小供电电压：2.25 V
标称供电电压：2.75 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Tin/Silver/Copper (Sn/Ag/Cu)端子形式：BALL
端子节距：0.5 mm端子位置：BOTTOM
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4 mm
uPs/uCs/外围集成电路类型：PARALLEL IO PORT, GENERAL PURPOSEBase Number Matches：1

LM8333GGR8AXSX/NOPB 数据手册

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LM8333  
www.ti.com  
SNLS246K –SEPTEMBER 2006–REVISED MAY 2013  
LM8333 Mobile I/O Companion Supporting Key-Scan, I/O Expansion, PWM, and  
ACCESS.bus Host Interface  
Check for Samples: LM8333  
1
FEATURES  
DESCRIPTION  
The LM8333 Mobile I/O Companion offloads the  
burden of keyboard scanning from the host, while  
providing extremely low power consumption in both  
operational and standby modes. It supports keypad  
matrices up to 8 × 8 in size (plus another 8 special-  
function keys), for portable applications such as  
cellphones, PDAs, games, and other handheld  
applications.  
2
•
8 × 8 Standard Keys  
•
8 Special Function Keys (SF Keys) Providing a  
Total of 72 Keys for the Maximum Keyboard  
Matrix  
ACCESS.Bus (I2C-compatible) Communication  
Interface to the Host  
•
•
Four General Purpose Host Programmable I/O  
Pins with Two Optional (Slow) External  
Interrupts  
Key press and release events are encoded into a  
byte format and loaded into a FIFO buffer for retrieval  
by the host processor. An interrupt output (IRQ) is  
used to signal events such as keypad activity, a state  
change on either of two interrupt-capable general-  
purpose I/O pins, or an error condition. Interrupt and  
error codes are available to the host by reading  
dedicated registers.  
•
•
15-byte FIFO Buffer to Store Key Pressed and  
Key Released Events  
Error Control with Error Reports on (FIFO  
Overrun, Keypad Overrun, Invalid Command)  
•
•
Host Programmable PWM  
Host Programmable Active Time and  
Debounce Time  
Four general-purpose I/O pins are available, two of  
which have interrupt capability.  
A
pulse-width  
modulated output based on a host-programmable  
internal timer is also available, which can be used as  
a general-purpose output if the PWM function is not  
required.  
APPLICATIONS  
•
•
•
•
Mobile Phones  
Personal Digital Assistants (PDAs)  
Smart Handheld Devices  
Personal Media Players  
To minimize power, the LM8333 automatically enters  
a low-power standby mode when there is no keypad,  
I/O, or host activity.  
The device is packaged in a 32–pin WQFN and a  
49-pin csBGA. Both are chip-scale packages.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006–2013, Texas Instruments Incorporated  
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