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參數(shù)資料
| 型號： | MAX7319 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 4-Bit D-type Registers with 3-State Outputs 16-CFP -55 to 125 |
| 中文描述： | I²C端口擴展器，具有8路輸入，可屏蔽瞬態(tài)檢測 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 251K |
| 代理商： | MAX7319 |
General Description
The MAX7319 2-wire serial-interfaced peripheral fea-
tures eight input ports with selectable internal pullups,
overvoltage protection to +6V, and transition detection
with interrupt output.
All input ports are continuously monitored for state
changes (transition detection). Transitions are latched,
allowing detection of transient changes. Any combination
of inputs can be selected using the interrupt mask to
assert the
INT
output. When the MAX7319 is subsequently
accessed through the serial interface, any pending inter-
rupt is cleared.
The +5.5V tolerant
RST
input clears the serial interface,
terminating any I
2
C
communication to or from the
MAX7319.
The MAX7319 uses two address inputs with four-level
logic to allow 16 I
2
C slave addresses. The slave
address also enables or disables internal 40k
pullups
in groups of four ports.
The MAX7319 supports hot insertion. All eight input
ports, the serial interface SDA, SCL, AD0, AD2,
INT
,
and
RST
remain high impedance in power-down (V+ =
0) with up to +6V asserted on them.
The MAX7319 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 MAX7319 is available in 16-pin QSOP and 16-pin
TQFN packages, and is specified over the automotive
temperature range (-40°C to +125°C).
Applications
Notebooks
Satellite Radio
Automotive
Features
o
400kHz, +5.5V-Tolerant I
2
C Serial Interface
o
+1.71V to +5.5V Operating Voltage
o
Eight Input Ports with Maskable, Latching
Transition Detection
o
Input Ports are Overvoltage Protected to +6V
o
Transient Changes are Latched, Allowing
Detection Between Read Operations
o
INT
Output Alerts Change on Any Selection of
Inputs
o
AD0 and AD2 Inputs Select from 16 Slave
Addresses
o
Low 0.6μA (typ) Standby Current
o
-40°C to +125°C Operating Temperature Range
M
I
2
C Port Expander with Eight Inputs and
Maskable Transition Detection
________________________________________________________________
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
19-3809; Rev 1; 10/05
Ordering Information
PART
PIN-PACKAGE
16 QSOP
16 TQFN-EP*
TOP MARK
—
ADA
PKG CODE
E16-4
T1633-4
MAX7319AEE+
MAX7319ATE+
Selector Guide
PART
MAX7319
MAX7320
MAX7321
MAX7322
MAX7323
MAX7328*
MAX7329**
INPUTS
8
—
Up to 8
4
Up to 4
INTERRUPT MASK
Yes
—
—
Yes
—
—
—
OPEN-DRAIN OUTPUTS
—
—
Up to 8
—
Up to 4
PUSH-PULL OUTPUTS
—
8
—
4
4
—
—
Up to 8
Up to 8
*
Second source to PCF8574.
**
Second source to PCF8574A.
Purchase of I
2
C components from Maxim Integrated Products, Inc., or one of its sublicensed Associated Companies, conveys a
license under the Philips I
2
C Patent Rights to use these components in an I
2
C system, provided that the system conforms to the I
2
C
Standard Specification as defined by Philips.
Cell Phones
SAN/NAS
Servers
Note:
All devices specified over -40°C to +85°C operating range.
+Denotes lead-free package.
*EP = Exposed pad.
Pin Configurations, Typical Application Circuit, and
Functional Diagram appear at end of data sheet.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7319AEE | 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(shù)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 |
| MAX7319AEE+ | 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(shù)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 |
| MAX7319AEE+T | 制造商:Maxim Integrated Products 功能描述:I2C PORT EXPANDER 16QSOP - Tape and Reel |
| MAX7319AEE-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(shù)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 |
| MAX7319ATE | 功能描述:接口-I/O擴展器 I2C Port Expander 8 Input RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)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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