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I/O DRIVER. IS31IO7325 Datasheet

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I/O DRIVER. IS31IO7325 Datasheet






IS31IO7325 DRIVER. Datasheet pdf. Equivalent




IS31IO7325 DRIVER. Datasheet pdf. Equivalent





Part

IS31IO7325

Description

MULTI-FUNCTION I/O DRIVER



Feature


IS31IO7325 MULTI-FUNCTION I/O DRIVER Aug ust 2012 GENERAL DESCRIPTION The IS31IO 7325 2-wire serial-interfaced periphera l features 16 I/O ports. Ports are divi ded into eight push pull I/Os and eight open-drain I/Os and transition detecti on. Any of the 16 I/O ports can be conf igured as an input or an output. All I/ O ports configured as inputs are contin uously monitored f.
Manufacture

ISSI

Datasheet
Download IS31IO7325 Datasheet


ISSI IS31IO7325

IS31IO7325; or state changes (transition detection). State changes are indicated by the INT output. The interrupt is latched, allo wing detection of transient changes. Wh en the IS31IO7325 is subsequently read through the serial interface, any pendi ng interrupt is cleared. The open-drain outputs are rated to sink 20mA at 0.22 V headroom, and are capable of driving LEDs. The RST inpu.


ISSI IS31IO7325

t clears the serial interface, terminati ng any I2C communication to or from the IS31IO7325. The IS31IO7325 uses two ad dress inputs to allow 4 I2C slave addre sses. The slave address also determines the power-up logic state for the I/O p orts. ________ _______ FEATURES 400kHz I2C serial interface 2.4V to 5 .5V operation 8 push-pull I/O ports 8 o pen-drain I/O port.


ISSI IS31IO7325

s, rated to 20mA sink current at 0.22V h eadroom Selectable I/O port power-up de fault logic states _______ INT output alerts change on inputs Low 0.3μA (Typ .) standby current -40°C ~ +125°C tem perature range APPLICATIONS Cell phones Notebooks SAN/NAS Satellite rad io Servers Automotive TYPICAL APPLICAT ION CIRCUIT VDD2 VDD1 1 uF 100k 4.7k SC L 4.7k SDA 4.7k INT R.

Part

IS31IO7325

Description

MULTI-FUNCTION I/O DRIVER



Feature


IS31IO7325 MULTI-FUNCTION I/O DRIVER Aug ust 2012 GENERAL DESCRIPTION The IS31IO 7325 2-wire serial-interfaced periphera l features 16 I/O ports. Ports are divi ded into eight push pull I/Os and eight open-drain I/Os and transition detecti on. Any of the 16 I/O ports can be conf igured as an input or an output. All I/ O ports configured as inputs are contin uously monitored f.
Manufacture

ISSI

Datasheet
Download IS31IO7325 Datasheet




 IS31IO7325
IS31IO7325
MULTI-FUNCTION I/O DRIVER
GENERAL DESCRIPTION
The IS31IO7325 2-wire serial-interfaced peripheral
features 16 I/O ports. Ports are divided into eight push
pull I/Os and eight open-drain I/Os and transition
detection.
Any of the 16 I/O ports can be configured as an input
or an output. All I/O ports configured as inputs are
continuously monitored for state changes (transition
detection). State changes are indicated by the INT_______
output. The interrupt is latched, allowing detection of
transient changes. When the IS31IO7325 is
subsequently read through the serial interface, any
pending interrupt is cleared.
The open-drain outputs are rated to sink 20mA at
0.22V headroom, and are capable of driving LEDs.
________
The RST input clears the serial interface, terminating
any I2C communication to or from the IS31IO7325. The
IS31IO7325 uses two address inputs to allow 4 I2C
slave addresses. The slave address also determines
the power-up logic state for the I/O ports.
August 2012
FEATURES
400kHz I2C serial interface
2.4V to 5.5V operation
8 push-pull I/O ports
8 open-drain I/O ports, rated to 20mA sink current
at 0.22V headroom
Selectable I/O port power-up default logic states
_______
INT output alerts change on inputs
Low 0.3μA (Typ.) standby current
-40°C ~ +125°C temperature range
APPLICATIONS
Cell phones
Notebooks
SAN/NAS
Satellite radio
Servers
Automotive
TYPICAL APPLICATION CIRCUIT
SCL
SDA
INT
RST
VDD2
4.7k
4.7k
4.7k
100 k
VDD1
http://www.DataSheet4U.net/
1 uF
Vcc OD 0
SCL OD 1
OD 2
SDA
OD 3
OD 4
INT OD 5
OD 6
RST OD 7
AD 1
AD 0
GND
PP 0
PP 1
PP 2
PP 3
PP 4
PP 5
PP 6
PP 7
VDD2
100k
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
INPUT / OUTPUT
Note:
VDD1: 2.4V~5.5V, 2.8V is recommended.
VDD2: 1.4V~5.5V, VDD2VDD1, 2.8V is recommended.
VDD2 should be turned off when system power off because OD ports are open default!
VDD2 = Vbat is forbidden.
Integrated Silicon Solution, Inc. – www.issi.com
Rev.B, 07/25/2012
1
datasheet pdf - http://www.DataSheet4U.net/




 IS31IO7325
IS31IO7325
FUNCTIONAL BLOCK DIAGRAM
AD0
AD1
SCL
SDA
Input
Filter
I2C
Control
Power-on
RST Reset
I/O
Ports
OD7
OD6
OD5
OD4
OD3
OD2
OD1
OD0
PP7
PP6
PP5
PP4
PP3
PP2
PP1
PP0
INT
http://www.DataSheet4U.net/
Copyright © 2012 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any 
time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are 
advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. 
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the 
product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not 
authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that: 
a.) the risk of injury or damage has been minimized; 
b.) the user assume all such risks; and 
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. – www.issi.com
Rev.B, 07/25/2012
2
datasheet pdf - http://www.DataSheet4U.net/




 IS31IO7325
IS31IO7325
PIN CONFIGURATION
Package
Pin Configuration (Top View)
QFN-24
PP0 1
PP1 2
PP2 3
PP3 4
OD0 5
OD1 6
18 AD0
17 PP7
16 PP6
15 PP5
14 PP4
13 OD7
SOP-24
PP0
PP1
PP2
PP3
OD0
OD1
OD2
OD3
GND
OD4
OD5
OD6
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
http://www.DataSheet4U.net/
17
16
15
14
13
AD1
RST
INT
VCC
SDA
SCL
AD0
PP7
PP6
PP5
PP4
OD7
Integrated Silicon Solution, Inc. – www.issi.com
Rev.B, 07/25/2012
3
datasheet pdf - http://www.DataSheet4U.net/



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