MAX7324AEG

更新时间： 2024-02-25 08:03:22

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
20页	262K
描述
I2C Port Expander with Eight Push-Pull Outputs and Eight Inputs

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

MAX7324AEG 数据手册

I C Port Expander with Eight Push-Pull Outputs

and Eight Inputs

Table 3. MAX7324 Address Map for Outputs O8–O15

PIN CONNECTION

DEVICE ADDRESS

OUTPUTS POWER-UP DEFAULT

AD2

AD0

O15

O14

O13

O12

O11

O10

SCL

SDA

GND

V+

SCL

SDA

GND

V+

SCL

SDA

GND

V+

SCL

SDA

V+

GND

V+

SCL

SDA

A long read sequence (more than 2 bytes) can be used

to poll the expander continuously without the overhead

of resending the slave address. If more than 2 bytes

are read from the expander, the expander repeatedly

returns the 2 bytes of input port data followed by the

transition flags. The inputs are repeatedly resampled

and the transition flags repeatedly reset for each pair of

bytes read. All changes that occur during a long read

sequence are detected and reported.

reasserted upon a STOP condition if the changed input

data is read before the STOP occurs. The INT logic

ensures that unnecessary interrupts are not asserted,

yet data changes are detected and reported no matter

when the change occurs.

Transition-Detection Masks

The transition detection logic incorporates a transition

flag and an interrupt mask bit for each input port. The

eight transition flags can be read through the serial

interface, and the 8-bit interrupt mask is set through the

serial interface.

The MAX7324 includes an 8-bit interrupt mask register

that selects which inputs generate an interrupt upon

change. Each input’s transition flag is set when its input

changes, independent of the interrupt mask register

settings. The interrupt mask register allows the proces-

sor to be interrupted for critical events, while the inputs

and the transition flags can be polled periodically to

detect less critical events.

Each port’s transition flag is set when that port’s input

changes, and the change flag remains set even if the

input returns to its original state. The port’s interrupt

mask determines whether a change on that input port

generates an interrupt. Enable interrupts for high-priori-

ty inputs using the interrupt mask. The interrupt allows

the system to respond quickly to changes on these

inputs. Poll the MAX7324 periodically to monitor less-

important inputs. The transition flags indicate whether a

permanent or transient change has occurred on any

input since the MAX7324 was last accessed.

The INT output is not reasserted during a read

sequence to avoid recursive reentry into an interrupt

service routine. Instead, if a data change occurs that

would normally cause the INT output to be set, the INT

assertion is delayed until the STOP condition. INT is not

_______________________________________________________________________________________

1...6 7 8910 11 12...20

中文翻译

下载PDF

MAX7324AEG 替代型号

型号	品牌	替代类型	描述	数据表
MAX7324AEG	MAXIM	当前型号	I2C Port Expander with Eight Push-Pull Outputs and Eight Inputs
MAX7324AEG+T	MAXIM	类似代替	Parallel I/O Port, 0 I/O, BICMOS, PDSO24, 0.150 INCH, 0.25 INCH PITCH, ROHS COMPLIANT, MO-
MAX7326AEG	MAXIM	功能相似	Parallel I/O Port, 0 I/O, BICMOS, PDSO24, 0.150 INCH, 0.25 INCH PITCH, MO-137AE, QSOP-24
MAX7326AEG-T	MAXIM	功能相似	Parallel I/O Port, 0 I/O, BICMOS, PDSO24, 0.150 INCH, 0.25 INCH PITCH, MO-137AE, QSOP-24

与MAX7324AEG相关器件

型号	品牌	描述	获取价格	数据表
MAX7324AEG+	MAXIM	暂无描述	获取价格
MAX7324AEG+T	MAXIM	Parallel I/O Port, 0 I/O, BICMOS, PDSO24, 0.150 INCH, 0.25 INCH PITCH, ROHS COMPLIANT, MO-	获取价格
MAX7324AEG-T	MAXIM	暂无描述	获取价格
MAX7324ATG	MAXIM	I2C Port Expander with Eight Push-Pull Outputs and Eight Inputs	获取价格
MAX7324ATG+	MAXIM	Parallel I/O Port, 0 I/O, BICMOS, 4 X 4 MM, 0.80 MM HEIGHT, LEAD FREE, MO-220WGGD-2, TQFN-	获取价格
MAX7324ATG+T	MAXIM	Parallel I/O Port, 16 I/O, BICMOS, TQFN-24	获取价格
MAX7324ATG-T	MAXIM	Parallel I/O Port, 0 I/O, BICMOS, 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGD-2, TQFN-24	获取价格
MAX7325	MAXIM	I2C Port Expander with Eight Push-Pull Outputs and Eight Inputs	获取价格
MAX7325	ADI	I2C端口扩展器，提供8路推挽式I/O和8个漏极开路I/O	获取价格
MAX7325_12	MAXIM	I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os	获取价格

与MAX7324AEG相关文章

探究MOS管沟道夹断后载流子传输机制及其电路设计影响
2024-06-05

4
光敏电阻的工作原理、作用及检测方法
2024-06-05

2
ENC28J60以太网控制器全面解析：特性、应用、引脚说明
2024-06-05

1
AD603资料手册解读：封装、引脚功能及电气参数全面分析
2024-06-05

2

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX7324AEG

MAX7324AEG 数据手册

MAX7324AEG 替代型号

与MAX7324AEG相关器件

与MAX7324AEG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

MAX7324AEG

MAX7324AEG 数据手册

MAX7324AEG 替代型号

与MAX7324AEG相关器件

与MAX7324AEG相关文章

您还可以找

您在本页遇到什么问题？