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參數資料
| 型號： | MAX7312 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection |
| 中文描述： | 2線接口、16位、輸入/輸出端口擴展器，帶有中斷和熱插入保護 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 373K |
| 代理商： | MAX7312 |
General Description
The MAX7312 2-wire-interfaced expander provides 16-bit
parallel input/output (I/O) port expansion in SMBus and
I
2
C applications. The MAX7312 consists of input port
registers, output port registers, polarity inversion regis-
ters, configuration registers, a bus timeout register, and
an I
2
C-compatible serial interface logic, compatible with
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
INT
output, SDA, SCL, and the slave address inputs
AD0-2 remain high impedance in power-down (V
t
= 0V)
up to 6V.
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.
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
Features
o
400kbps I
2
C-Compatible Serial Interface
o
2V to 5.5V Operation
o
5V Overvoltage Tolerant I/Os
o
Supports Hot Insertion
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
o
4mm
4mm, 0.8mm Thin QFN Package
o
-40°C to +125°C Operation
Ordering Information
M
2-Wire-Interfaced 16-Bit I/O Port Expander
with Interrupt and Hot-Insertion Protection
________________________________________________________________
Maxim Integrated Products
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.
1
19-3057; Rev 0; 10/03
SMBus is a trademark of Intel Corp.
I
2
C Purchase of I
2
C components of Maxim Integrated Products,
Inc., or one of its Sublicense Associate Companies conveys a
license under the Philips I
2
C Patent Rights to use these compo-
nents in an I
2
C system provided that the system conforms to the
I
2
C Standard Specifications as defined by Philips.
Pin Configurations
PART
TEMP RANGE
-40
°
C to +125
°
C 24 Wide SO
-40
°
C to +125
°
C 24 SSOP
-40
°
C to +125
°
C 24 Thin QFN (4mm x 4mm)
-40
°
C to +125
°
C 24 TSSOP
PIN-PACKAGE
MAX7312AWG
MAX7312AAG
MAX7312ATG
MAX7312AUG
TOP VIEW
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
V+
SDA
SCL
AD0
I/O0
AD2
AD1
I/O15
I/O14
I/O13
I/O12
I/O4
I/O3
I/O2
I/O1
16
15
14
13
9
10
11
12
I/O11
I/O10
I/O9
I/O8
GND
I/O7
I/O6
I/O5
TSSOP/SSOP/SO
MAX7312
INT
THIN QFN
MAX7312
1
2
3
4
7
8
9
10
11
12
24
23
22
21
20
19
5
6
18
17
16
15
14
13
I/O0
I/O2
I/O1
I/O3
I/O5
I/O6 I/O7 GND I/O8 I/O9 I/O10
AD2 AD1
V
+
SDA SCL
I/O4
AD0
I/O14
I/O15
I/O13
I/O11
I/O12
INT
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX7312AAG | 功能描述:接口-I/O擴展器 RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7312AAG+ | 功能描述:接口-I/O擴展器 16-Bit I/O Port Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7312AAG+T | 功能描述:接口-I/O擴展器 16-Bit I/O Port Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7312AAG-T | 功能描述:接口-I/O擴展器 RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7312ATG | 功能描述:接口-I/O擴展器 16-Bit I/O Port Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
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