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MAX7320 の電気的特性と機能

MAX7320のメーカーはMaxim Integratedです、この部品の機能は「I2C Port Expander」です。


製品の詳細 ( Datasheet PDF )

部品番号 MAX7320
部品説明 I2C Port Expander
メーカ Maxim Integrated
ロゴ Maxim Integrated ロゴ 




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MAX7320 Datasheet, MAX7320 PDF,ピン配置, 機能
MAX7320
EVALUATION KIT AVAILABLE
I2C Port Expander with Eight Push-Pull Outputs
General Description
The MAX7320 2-wire serial-interfaced peripheral features
eight push-pull outputs with selectable power-up logic
states.
The +5.5V tolerant RST input clears the serial inter-
face, terminating any I2C communication to or from the
MAX7320.
The MAX7320 uses two address inputs with four-level
logic to allow 16 I2C slave addresses. The slave address
also determines the power-up state level for the outputs
in groups of four ports.
The MAX7320 supports hot insertion. The serial interface
SDA, SCL, AD0, AD2, and RST remain high impedance in
power-down (V+ = 0V) with up to +6V asserted on them.
The MAX7320 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 MAX7320 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
● Cell Phones/PDAs
● Satellite Radios
● Notebooks
● RAID
● Servers
Benefits and Features
● 400kHz, +5.5V-Tolerant I2C Serial Interface
● +1.71V to +5.5V Operating Voltage
● Eight Push-Pull Output Ports with Selectable Power-
Up Logic States
● RST Clears the Serial Interface, Terminating Any
Serial Transaction to or from the MAX7320
● AD0 and AD2 Inputs Select from 16 Slave Addresses
Low 0.6μA (typ) Standby Current
● -40°C to +125°C Temperature Range
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
MAX7320AEE+ -40°C to +125°C 16 QSOP
MAX7320ATE+
16 TQFN
-40°C to +125°C 3mm x 3mm x
0.8mm
+Denotes a lead(Pb)-free/RoHS-compliant package.
TOP
MARK
ADB
Pin Configurations, Typical Application Circuit, and
Functional Diagram appear at end of data sheet.
Selector Guide
PART
INPUTS
MAX7319
8
MAX7320
MAX7321
Up to 8
MAX7322
4
MAX7323
Up to 4
MAX7328*
MAX7329**
Up to 8
*Second source to PCF8574.
**Second source to PCF8574A.
INTERRUPT MASK
Yes
Yes
OPEN-DRAIN OUTPUTS
Up to 8
Up to 4
Up to 8
PUSH-PULL OUTPUTS
8
4
4
19-3879; Rev 1; 4/15

1 Page





MAX7320 pdf, ピン配列
MAX7320
I2C Port Expander with Eight Push-Pull Outputs
Port And Timing Characteristics
(V+ = +1.71V to +5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at V+ = +3.3V, TA = +25°C.) (Note 1)
PARAMETER
Port Output Data Valid
SYMBOL
tPPV CL ≤ 100pF
CONDITIONS
MIN TYP MAX UNITS
4 µs
Timing Characteristics
(V+ = +1.71V to +5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at V+ = +3.3V, TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Serial Clock Frequency
Bus Free Time Between a STOP
and a START Condition
fSCL
tBUF
Hold Time (Repeated) START
Condition
tHD, STA
Repeated START Condition Setup
Time
tSU, STA
STOP Condition Setup Time
Data Hold Time
Data Setup Time
SCL Low to Data Out Valid
SCL Clock Low Period
SCL Clock High Period
Rise Time of Both SDA and SCL
Signals, Receiving
tSU, STO
tHD, DAT
tSU, DAT
tVD, DAT
tLOW
tHIGH
(Note 3)
SCL low to SDA output valid
tR (Notes 2, 4)
Fall Time of Both SDA and SCL
Signals, Receiving
tF (Notes 2, 4)
Fall Time of SDA Transmitting
Pulse Width of Spike Suppressed
Capacitive Load for Each
Bus Line
RST Pulse Width
RST Rising to START Condition
Setup Time
tF,TX
tSP
Cb
tW
tRST
(Notes 2, 4)
(Note 5)
(Note 2)
MIN TYP MAX UNITS
400 kHz
1.3 µs
0.6 µs
0.6
0.6
0.9
100
3.4
1.3
0.7
20 +
0.1Cb
300
20 +
0.1Cb
300
20 +
0.1Cb
50
250
400
500
1
µs
µs
µs
ns
µs
µs
µs
ns
ns
ns
ns
pF
ns
µs
Note 1: All parameters tested at TA = +25°C. Specifications over temperature are guaranteed by design.
Note 2: Guaranteed by design.
Note 3: A master device must provide a hold time of at least 300ns for the SDA signal (referred to VIL of the SCL signal) to bridge
the undefined region of SCL’s falling edge.
Note 4: Cb = total capacitance of one bus line in pF. tR and tF measured between 0.3 x V+ and 0.7 x V+, ISINK ≤ 6mA.
Note 5: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.
www.maximintegrated.com
Maxim Integrated 3


3Pages


MAX7320 電子部品, 半導体
MAX7320
I2C Port Expander with Eight Push-Pull Outputs
Table 1. MAX7319–MAX7329 Family Comparison (continued)
PART
I2C SLAVE
ADDRESS
INPUTS
INPUT
INTERRUPT
MASK
OPEN-
DRAIN
OUTPUTS
PUSH-
PULL
OUTPUTS
APPLICATION
MAX7323 110xxxx Up to 4
Up to 4
Four I/O, four output-only versions:
Four open-drain I/O ports with latching transition
4 detection interrupt and selectable pullups.
Four push-pull outputs with selectable power-up
default levels.
MAX7328
MAX7329
0100xxx
0111xxx
Up to 8
16-PORT EXPANDERS
MAX7324
MAX7325
MAX7326
MAX7327
101xxxx
and
110xxxx
8
Up to 8
4
Up to 4
Yes
Yes
Up to 8
Up to 8
Up to 4
PCF8574-, PCF8574A-compatible versions:
Eight open-drain I/O ports with nonlatching transition
detection interrupt and pullups on all ports.
All ports power up as inputs (or logic-high outputs).
Any port can be used as an input by setting the open-
drain output to logic-high.
8 Software equivalent to a MAX7320 plus a MAX7321.
8 Software equivalent to a MAX7320 plus a MAX7319.
12 Software equivalent to a MAX7320 plus a MAX7322.
12 Software equivalent to a MAX7320 plus a MAX7323.
Table 2. Read and Write Access to Eight-Port Expander Family
PART
I2C SLAVE
ADDRESS
INPUTS
MAX7319 110xxxx
8
MAX7320 101xxxx
MAX7321 110xxxx Up to 8
MAX7322 110xxxx
4
INTERRUPT
MASK
Yes
Yes
OPEN-
DRAIN
OUTPUTS
Up to 8
PUSH-
PULL I2C DATA WRITE
OUTPUTS
<I7–I0 interrupt
mask>
8
<O7–O0 port
outputs>
<P7–P0 port
outputs>
I2C DATA READ
<I7–I0 port inputs>
<I7–I0 transition flags>
<O7-O0 port inputs>
<P7–P0 port inputs>
<P7–P0 transition flags>
<O7, O6 outputs, <O7, O6, I5–I2, O1, O0 port
4
I5–I2 interrupt
mask, O1, O0
inputs>
<0, 0, I5–I2 transition flags,
outputs>
0, 0>
MAX7323 110xxxx Up to 4
MAX7328 0100xxx Up to 8
MAX7329 0111xxx Up to 8
Up to 4
Up to 8
Up to 8
<O7, O6, P5–P2, O1, O0 port
4
<port outputs>
inputs>
<0, 0, P5-P2 transition flags,
0, 0>
<P7–P0 port
outputs>
<P7–P0 port inputs>
<P7–P0 port
outputs>
<P7–P0 port inputs>
www.maximintegrated.com
Maxim Integrated 6

6 Page



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共有リンク

Link :


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