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参数资料
| 型号： | MAX7321AEE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 接口： | I²C |
| 输入/输出数： | 8 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 1.71 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 管件 |
| 包括： | POR |
19-3738; Rev 2; 7/13
MAX7321
I2C Port Expander with 8 Open-Drain I/Os
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
General Description
The MAX7321 2-wire serial-interfaced peripheral fea-
tures eight open-drain I/O ports with selectable internal
pullups and transition detection. Any port may be used
as a logic input or an open-drain output. Ports are over-
voltage protected to +6V independent of supply voltage.
All I/O ports configured as inputs are continuously
monitored for state changes (transition detection).
State changes are indicated by the open-drain INT
output. The interrupt is latched, allowing detection of
transient changes. When the MAX7321 is subsequent-
ly accessed through the serial interface, any pending
interrupt is cleared.
The open-drain outputs are rated to sink 20mA and are
capable of driving LEDs.
The RST input clears the serial interface, terminating
any I2C communication to or from the MAX7321.
The MAX7321 uses two address inputs with four-level
logic to allow 16 I2C slave addresses. The slave
address also determines the power-up logic state for
the I/O ports, and enables or disables internal 40k
pullups in groups of four ports.
The MAX7321 is one device in a family of pin-compatible
port expanders with a choice of input ports, open-drain
I/O ports, and push-pull output ports (see Table 1).
The MAX7321 is available in 16-pin QSOP and TQFN
packages, and is specified over the automotive temper-
ature range (-40°C to +125°C).
Features
o 400kHz I2C Serial Interface
o +1.71V to +5.5V Operating Voltage
o 8 Open-Drain I/O Ports Rated to 20mA Sink Current
o I/O Ports Are Overvoltage Protected to +6V
o Any Port Can Be a Logic Input or an Open-Drain
Output
o Selectable I/O Port Power-Up Default Logic States
o Transient Changes Are Latched, Allowing Detection
Between Read Operations
o INT Output Alerts Change on Inputs
o AD0 and AD2 Inputs Select from 16 Slave
Addresses
o Low 0.6A (typ) Standby Current
o -40°C to +125°C Operating Temperature
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX7321AEE+
-40°C to +125°C
16 QSOP
—
MAX7321ATE+
-40°C to +125°C
16 TQFN-EP**
ADC
Pin Configurations are continued at end of data sheet.
Typical Application Circuit and Functional Diagram appear
at end of data sheet.
Selector Guide
PART
INPUTS
INTERRUPT
MASK
OPEN-
DRAIN
OUTPUTS
PUSH-PULL
OUTPUTS
MAX7319
8
Yes
—
MAX7320
—
8
MAX7321
Up to 8
—
Up to 8
—
MAX7322
4
Yes
—
4
MAX7323
Up to 4
—
Up to 4
4
MAX7328
Up to 8
—
Up to 8
—
MAX7329
Up to 8
—
Up to 8
—
**
EP = Exposed pad.
+
Denotes lead-free package.
Cell Phones
SAN/NAS
Servers
Notebooks
Satellite Radio
Automotive
Applications
Pin Configurations
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
AD0
V+
SDA
SCL
INT
P7
P6
P5
P4
MAX7321
QSOP
RST
AD2
P2
P0
P1
P3
GND
+
相关PDF资料 |
PDF描述 |
|---|---|
| MAX7322ATE+T | IC I/O EXPANDER I2C 4B 16TQFN-EP |
| MAX7323ATE+T | IC I/O EXPANDER I2C 4B 16TQFN-EP |
| MAX7324ATG+ | IC I/O EXPANDER I2C 8B 24TQFN-EP |
| MAX7325AEG+T | IC I/O EXPANDER I2C 8B 24QSOP |
| MAX7326AEG+ | IC I/O EXPANDER I2C 16B 24QSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7321AEE+ | 功能描述:接口-I/O扩展器 I2C Port Expander w/8 Open-Drain I/Os RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MAX7321AEE+T | 功能描述:接口-I/O扩展器 I2C Port Expander w/8 Open-Drain I/Os RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MAX7321AEE-T | 功能描述:接口-I/O扩展器 RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MAX7321ASE | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:I2C Port Expander with 8 Open-Drain I/Os |
| MAX7321ATE | 功能描述:接口-I/O扩展器 RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
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