Datasheet > 微控制器和处理器 > 其他 uPs/uCs/外围集成电路> LM8322JGR8X

LM8322JGR8X

更新时间： 2024-01-29 11:49:14

品牌	Logo	应用领域
美国国家半导体 - NSC		微控制器和处理器外围集成电路 uCs集成电路 uPs集成电路
页数	文件大小	规格书
42页	823K
描述
Mobile I/O Companion Supporting Key-Scan, I/O Expansion, PWM, and ACCESS.bus Host Interface

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

LM8322JGR8X 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	TFBGA,	Reach Compliance Code：	compliant
HTS代码：	8542.31.00.01	风险等级：	5.09
JESD-30 代码：	S-PBGA-B36	JESD-609代码：	e1
长度：	3.5 mm	湿度敏感等级：	1
端子数量：	36	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	封装形状：	SQUARE
封装形式：	GRID ARRAY, THIN PROFILE, FINE PITCH	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.1 mm
最大供电电压：	1.98 V	最小供电电压：	1.62 V
标称供电电压：	1.8 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：	40	宽度：	3.5 mm
uPs/uCs/外围集成电路类型：	MICROPROCESSOR CIRCUIT	Base Number Matches：	1

LM8322JGR8X 数据手册

May 2007

LM8322

Mobile I/O Companion Supporting Key-Scan, I/O

Expansion, PWM, and ACCESS.bus Host Interface

Three host-programmable PWM outputs useful for smooth

LED brightness modulation.

Supports general-purpose I/O expansion on pins not

otherwise used for keypad interface.

Key-scan event storage in a FIFO buffer for up to 15

events.

Key events, errors, and dedicated hardware interrupts

request host service by asserting the IRQ output.

The correct reception of a command may be assumed, if

no error is reported from the LM8322 after receiving a

command.

Wake-up from Halt mode on any matrix key-scan event,

any use of the SF keys, or any activity on the ACCESS.bus

interface.

■

1.0 General Description

The LM8322 Mobile I/O Companion is a dedicated device to

unburden a host processor from scanning a matrix-addressed

keypad. In addition, the LM8322 provides general-purpose

I/O expansion, and PWM outputs useful for dynamic LED

brightness modulation.

It communicates with the host through an I²C-compatible

ACCESS.bus interface. An interrupt output is available for

signaling key-press and key-release events. Communication

frequencies up to 400 kHz (Fast-mode) bus speed are sup-

ported. The LM8322 supports a predefined set of commands.

These commands enable a host device to keep control over

all functions.

■

2.0 Features

3.0 Applications

Key Features

Mobile phones

■

Supports keypad matrices of up to 8 × 12 keys plus 8

■

Personal Digital Assistants (PDAs)

special-function (SF) keys for a total of 104 keys. SF keys

pull keypad scan inputs directly to ground, rather than

connecting to a keypad scan output.

Smart handheld devices

Personal media players

■

Supports I²C-compatible ACCESS.bus interface in slave

mode up to 400 kHz (Fast-mode).

■

4.0 Block Diagram

30013620

300136

www.national.com

12 3 4 5 6 7...42

下载PDF

与LM8322JGR8X相关器件

型号	品牌	描述	获取价格	数据表
LM8322JGR8X/NOPB	TI	SPECIALTY MICROPROCESSOR CIRCUIT, PBGA36, ROHS COMPLIANT, MICRO ARRAY-36	获取价格
LM8322JGR8X/NOPB	NSC	IC SPECIALTY MICROPROCESSOR CIRCUIT, PBGA36, ROHS COMPLIANT, MICRO ARRAY-36, Microprocesso	获取价格
LM8323	TI	LM8323 Mobile I/O Companion Supporting Keyscan, I/O Expansion, PWM, and ACCESS.bus Host In	获取价格
LM8325-1	TI	LM8325-1 Mobile I/O Companion Supporting Keyscan, I/O Expansion, PWM, and ACCESS.bus Host	获取价格
LM8325-1GRA25A	TI	IC SPECIALTY CONSUMER CIRCUIT, PBGA25, MICRO ARRAY PACKAGE-25, Consumer IC:Other	获取价格
LM8327	TI	LM8327 Mobile I/O Companion Supporting Keyscan, I/O Expansion, PWM, and ACCESS.bus Host In	获取价格

与LM8322JGR8X相关文章

SI2301 N沟道MOSFET：资料手册参数分析
2024-05-08

11
ADC0809逐次逼近寄存器型模数转换器：资料手册参数分析
2024-05-08

7
AD9361捷变收发器：全面参数解析与关键特性概览
2024-05-08

7
IRF3205功率MOSFET：资料手册参数分析
2024-05-08

7

产品中心

服务支持

精选活动

关于我们

帮助中心

LM8322JGR8X

LM8322JGR8X 技术参数

LM8322JGR8X 数据手册

与LM8322JGR8X相关器件

与LM8322JGR8X相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM8322JGR8X

LM8322JGR8X 技术参数

LM8322JGR8X 数据手册

与LM8322JGR8X相关器件

与LM8322JGR8X相关文章

您还可以找

您在本页遇到什么问题？