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参数资料
| 型号： | MAX7326AEG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 16B 24QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接口： | I²C |
| 输入/输出数： | 16 |
| 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： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-QSOP |
| 包装： | 带卷 (TR) |
| 包括： | POR |
General Description
The MAX7326 2-wire serial-interfaced peripheral fea-
tures 16 I/O ports. The ports are divided into 12 push-
pull outputs and four input ports with selectable internal
pullups. Input ports are overvoltage protected to +6V
and feature transition detection with interrupt output.
The four input ports are continuously monitored for
state changes (transition detection). The interrupt is
latched, allowing detection of transient changes. Any
combination of inputs can be selected using the inter-
rupt mask to assert the open-drain, +6V-tolerant INT
output. When the MAX7326 is subsequently accessed
through the serial interface, any pending interrupt is
cleared. The 12 push-pull outputs are rated to sink
20mA and are capable of driving LEDs. The RST input
clears the serial interace, terminating any I2C communi-
cation to or from the MAX7326.
The MAX7326 uses two address inputs with four-level
logic to allow 16 I2C slave addresses. The slave
address also sets the power-up default state for the 12
output ports and enables or disables internal 40k
Ω
pullups in groups of two input ports.
The MAX7326 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 MAX7326 is available in 24-pin QSOP and TQFN
packages and is specified over the -40°C to +125°C
automotive temperature range.
Applications
Features
400kHz I2C Serial Interface
+1.71V to +5.5V Operating Voltage
12 Push-Pull Outputs Rated at 20mA Sink Current
4 Input Ports with Matchable Latching Transition
Detection
Input Ports are Overvoltage Protected to +6V
Transient Changes are Latched, Allowing
Detection Between Read Operations
INT Output Alerts Change on Any Selection of
Inputs
AD0 and AD2 Inputs Select from 16 Slave
Addresses
Low 0.6A Standby Current
-40°C to +125°C Temperature Range
MAX7326
I2C Port Expander with 12 Push-Pull Outputs
and 4 Inputs
________________________________________________________________ Maxim Integrated Products
1
19-3804; Rev 0; 10/06
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
EVALUATION
KIT
AVAILABLE
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX7326AEG+
-40°C to +125°C
24 QSOP
E24-1
MAX7326ATG+
-40°C to +125°C
24 TQFN-EP*
(4mm x 4mm)
T-2444-3
Typical Application Circuit and Functional Diagram appear
at end of data sheet.
Selector Guide
PART
INPUTS
INTERRUPT
MASK
OPEN-
DRAIN
OUTPUTS
PUSH-PULL
OUTPUTS
MAX7324
8
Yes
—
8
MAX7325
Up to 8
—
Up to 8
8
MAX7326
4
Yes
—
12
MAX7327
Up to 4
—
Up to 4
12
Cell Phones
SAN/NAS
Servers
Notebooks
Satellite Radio
Automotive
+Denotes lead-free package.
*EP = Exposed paddle.
TQFN (4mm x 4mm)
TOP VIEW
+
MAX7326
19
20
21
22
12
3
4
5
6
18
17
16
15
14
13
23
24
12
11
10
9
8
7
SCL
V+
SDA
INT
AD2
O0
O1
I2
I3
I4
I5
AD0
O15
O13
O12
O11
RST
O10
O8
O9
GND
O6
O7
O14
EXPOSED PADDLE
Pin Configurations
Pin Configurations continued at end of data sheet.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7326ATG | 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 |
| MAX7326ATG+ | 功能描述:接口-I/O扩展器 I2C Port Expander w/12 P-P Out & 4 In 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 |
| MAX7326ATG+T | 功能描述:接口-I/O扩展器 I2C Port Expander w/12 P-P Out & 4 In 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 |
| MAX7326ATG-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 |
| MAX7326EVCMAXQU+ | 功能描述:界面开发工具 MAX7326 Max7526 Kit RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
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