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MAX7312

更新时间: 2024-01-18 02:38:37
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美信 - MAXIM /
页数 文件大小 规格书
17页 373K
描述
2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection

MAX7312 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:,
Reach Compliance Code:compliantFactory Lead Time:6 weeks
风险等级:5.72峰值回流温度(摄氏度):NOT SPECIFIED
处于峰值回流温度下的最长时间:NOT SPECIFIEDuPs/uCs/外围集成电路类型:PARALLEL IO PORT, GENERAL PURPOSE
Base Number Matches:1

MAX7312 数据手册

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19-3057; Rev 0; 10/03  
2-Wire-Interfaced 16-Bit I/O Port Expander  
with Interrupt and Hot-Insertion Protection  
General Description  
Features  
o 400kbps I C-Compatible Serial Interface  
2
The MAX7312 2-wire-interfaced expander provides 16-bit  
parallel input/output (I/O) port expansion in SMBus™ and  
o 2V to 5.5V Operation  
2
I C™ applications. The MAX7312 consists of input port  
o 5V Overvoltage Tolerant I/Os  
registers, output port registers, polarity inversion regis-  
ters, configuration registers, a bus timeout register, and  
o Supports Hot Insertion  
2
an I C-compatible serial interface logic, compatible with  
o 16 I/O Pins that Default to Inputs on Power-Up  
o Open-Drain Interrupt Output (INT)  
o Bus Timeout for Lock-Up-Free Operation  
o Noise Filter on SCL/SDA Inputs  
o 64 User-Selectable Slave ID Addresses  
o Low Standby Current (2.9µA typ)  
o Polarity Inversion  
SMBus. The system master can invert the MAX7312 input  
data by writing to the active-high polarity inversion regis-  
ter. The system master can enable or disable bus timeout  
by writing to the bus timeout register.  
Any of the 16 I/O ports can be configured as an input or  
an output. A power-on reset (POR) initializes the 16 I/Os  
as inputs. Three address select pins configure the part  
to one of 64 slave ID addresses.  
The MAX7312 supports hot insertion. All port pins, the  
o 4mm 4mm, 0.8mm Thin QFN Package  
o -40°C to +125°C Operation  
INT output, SDA, SCL, and the slave address inputs  
AD0-2 remain high impedance in power-down (V = 0V)  
t
up to 6V.  
Ordering Information  
The MAX7312 is available in 24-pin SO, SSOP, TSSOP,  
and thin QFN packages and is specified over the -40°C  
to +125°C automotive temperature range.  
PART  
TEMP RANGE PIN-PACKAGE  
MAX7312AWG -40°C to +125°C 24 Wide SO  
MAX7312AAG -40°C to +125°C 24 SSOP  
MAX7312ATG -40°C to +125°C 24 Thin QFN (4mm x 4mm)  
MAX7312AUG -40°C to +125°C 24 TSSOP  
SMBus is a trademark of Intel Corp.  
For applications requiring I/Os with integrated 100k  
pullup resistors, refer to the MAX7311 data sheet.  
Applications  
Servers/Blades  
RAID Systems  
Medical Equipment  
Instrumentation and Test Measurement  
Networking  
2
2
I C Purchase of I C components of Maxim Integrated Products,  
Inc., or one of its Sublicense Associate Companies conveys a  
2
license under the Philips I C Patent Rights to use these compo-  
2
nents in an I C system provided that the system conforms to the  
2
I C Standard Specifications as defined by Philips.  
Pin Configurations  
TOP VIEW  
+
AD2 AD1 INT  
V
SDA SCL  
24 23 22 21 20 19  
+
24 V  
INT  
AD1  
AD2  
I/O0  
I/O1  
I/O2  
I/O3  
I/O4  
I/O5  
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
18  
I/O0  
AD0  
23 SDA  
22 SCL  
21 AD0  
20 I/O15  
19 I/O14  
18 I/O13  
17 I/O12  
16 I/O11  
15 I/O10  
14 I/O9  
13 I/O8  
I/O1  
I/O2  
I/O3  
17 I/O15  
16  
15  
14  
13  
I/O14  
I/O13  
MAX7312  
MAX7312  
I/O4  
I/O5  
I/O12  
I/O11  
7
8
9
10 11 12  
I/O6 I/O7 GND I/O8 I/O9 I/O10  
THIN QFN  
I/O6 10  
I/O7 11  
GND 12  
TSSOP/SSOP/SO  
________________________________________________________________ Maxim Integrated Products  
1
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.  

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