CAT9555WI-T1 ON Semiconductor, CAT9555WI-T1 Datasheet

IC I/O EXPANDER I2C 16B 24SOIC

CAT9555WI-T1

Manufacturer Part Number
CAT9555WI-T1
Description
IC I/O EXPANDER I2C 16B 24SOIC
Manufacturer
ON Semiconductor
Datasheet

Specifications of CAT9555WI-T1

Interface
I²C, Serial, SMBus
Number Of I /o
16
Interrupt Output
Yes
Frequency - Clock
400kHz
Voltage - Supply
2.3 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Includes
POR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
9555WI-T2
CAT9555WI-T1TR
CAT9555WI-T2
CAT9555WI-T2TR
CAT9555WI-T2TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CAT9555WI-T1
Quantity:
603
16-bit I²C and SMBus I/O Port with Interrupt
FEATURES
APPLICATIONS
BLOCK DIAGRAM
Notes:
(1)
© 2010 SCILLC. All rights reserved
Characteristics subject to change without notice
400kHz I²C bus compatible
2.3V to 5.5V operation
Low stand-by current
5V tolerant I/Os
16 I/O pins that default to inputs at power-up
High drive capability
Individual I/O configuration
Polarity inversion register
Active low interrupt output
Internal power-on reset
No glitch on power-up
Noise filter on SDA/SCL inputs
Cascadable up to 8 devices
Industrial temperature range
RoHS-compliant 24-lead SOIC and TSSOP, and
24-pad TQFN (4 x 4mm) packages
White goods (dishwashers, washing machines)
Handheld devices (cell phones, PDAs, digital
cameras)
Data Communications (routers, hubs and servers)
All I/Os are set to inputs at RESET
SDA
V
SCL
V
A0
A1
A2
CC
SS
(1)
FILTER
INPUT
POWER-ON
RESET
I
2
CONTROL
C/SMBUS
1
WRITE pulse
WRITE pulse
READ pulse
READ pulse
DESCRIPTION
The CAT9555 is a CMOS device that provides 16-bit
parallel input/output port expansion for I²C and SMBus
compatible applications. These I/O expanders provide
a simple solution in applications where additional I/Os
are
pushbuttons, and fans.
The CAT9555 consists of two 8-bit Configuration ports
(input or output), Input, Output and Polarity inversion
registers, and an I²C/SMBus-compatible serial interface.
Any of the sixteen I/Os can be configured as an input
or output by writing to the configuration register. The
system master can invert the CAT9555 input data by
writing to the active-high polarity inversion register.
The CAT9555 features an active low interrupt output
which indicates to the system master that an input
state has changed.
The three address input pins provide the device's
extended addressing capability and allow up to eight
devices to share the same bus. The fixed part of the
I²C slave address is the same as the CAT9554,
allowing up to eight of these devices in any
combination to be connected on the same bus.
8-BIT
8-BIT
For Ordering Information details, see page 17.
needed:
OUTPUT
OUTPUT
PORTS
PORTS
INPUT/
INPUT/
LP FILTER
sensors,
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
power
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
V
INT
INT
switches,
CAT9555
Doc. No. MD-9003, Rev. J
LEDs,

Related parts for CAT9555WI-T1

CAT9555WI-T1 Summary of contents

Page 1

I²C and SMBus I/O Port with Interrupt FEATURES 400kHz I²C bus compatible 2.3V to 5.5V operation Low stand-by current 5V tolerant I/Os 16 I/O pins that default to inputs at power-up High drive capability Individual I/O configuration Polarity inversion ...

Page 2

CAT9555 PIN CONFIGURATION SOIC (W), TSSOP (Y) INT I/O 4 0.0 I/O 5 0.1 I/O 6 0.2 I/O 7 0.3 I/O 8 0.4 I/O 9 0.5 I/O 10 0.6 I ...

Page 3

ABSOLUTE MAXIMUM RATINGS Parameters V with Respect to Ground CC Voltage on Any Pin with Respect to Ground DC Current on I/O to I/O I/O 1.0 1.7, DC Input Current V Supply Current CC V Supply Current SS Package Power ...

Page 4

CAT9555 D.C. OPERATING CHARACTERISTICS V = 2.3V to 5.5V 0V -40°C to +85°C, unless otherwise specified Symbol Parameter Supplies V Supply voltage CC I Supply current CC I Standby current stbl I Standby ...

Page 5

A.C. CHARACTERISTICS V = 2.3V to 5.5V -40°C to +85°C, unless otherwise specified Symbol Parameter F Clock Frequency SCL t START Condition Hold Time HD:STA t Low Period of SCL Clock LOW t High Period of ...

Page 6

CAT9555 A.C. TEST CONDITIONS Input Rise and Fall time CMOS Input Voltages CMOS Input Reference Voltages Output Reference Voltages ¯¯¯ Output Load: SDA, INT Output Load: I/ SCL t SU:STA SDA IN SDA OUT Doc. No. MD-9003 Rev. ...

Page 7

PIN DESCRIPTION SCL: Serial Clock The serial clock input clocks all data transferred into or out of the device. The SCL line requires a pull-up resistor driven by an open drain output. SDA: Serial Data/Address The bidirectional ...

Page 8

CAT9555 ¯¯¯ : Interrupt Output INT The open-drain interrupt output is activated when one of the port pins configured as an input changes state (differs from the corresponding input port register bit state). The interrupt is deactivated when the input ...

Page 9

FUNCTIONAL DESCRIPTION The CAT9555 general purpose input/output (GPIO) peripheral provides up to sixteen I/O ports, controlled through an I²C compatible serial interface The CAT9555 supports the I²C Bus data transmission protocol. This Inter-Integrated Circuit Bus protocol defines any device that ...

Page 10

CAT9555 ACKNOWLEDGE After a successful data transfer, each receiving device is required to generate an acknowledge. The acknowledging device pulls down the SDA line during the ninth clock cycle, signaling that it received the 8 bits of data. The SDA ...

Page 11

The output port register sets the outgoing logic levels of the I/O ports, defined as outputs by the configu- ration register. Bit values in this register have no effect on I/O pins defined as inputs. Reads from the output port ...

Page 12

CAT9555 Power-On Reset Operation When the power supply is applied to V internal power-on reset pulse holds the CAT9555 in a reset state until V reaches V CC POR acknowledge from slave slave address ...

Page 13

PACKAGE OUTLINE DRAWINGS (1) (2) SOIC 24-LEAD 300MILS ( PIN#1 IDENTIFICATION TOP VIEW D A SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MS-013 © 2010 SCILLC. All rights ...

Page 14

CAT9555 (1) (2) TSSOP 24-LEAD 4.4MM (Y) e TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MO-153. Doc. No. MD-9003 Rev ...

Page 15

TQFN 24-PAD 4 X 4MM (HV6) D PIN#1 INDEX AREA SYMBOL MIN NOM A 0.70 0.75 A1 0.00 A3 0.20 REF b 0.20 0.25 D 4.00 BSC D2 2.70 2.80 E 4.00 ...

Page 16

CAT9555 (1)(2)(3) TQFN 24-PAD 4 X 4MM (HT6) D PIN#1 INDEX AREA SYMBOL MIN NOM A 0.70 0.75 A1 0.00 — A3 0.20 REF b 0.20 0.25 D 4.00 BSC D2 2.00 — ...

Page 17

... EXAMPLE OF ORDERING INFORMATION Prefix Device # CAT 9555 Product Optional Number Company ID 9555 ORDERING PART NUMBER Part Number Package CAT9555WI SOIC CAT9555WI-T1 SOIC CAT9555YI TSSOP CAT9555YI-T2 TSSOP CAT9555HV6I-G TQFN CAT9555HV6I-GT2 TQFN CAT9555HT6I-G TQFN CAT9555HT6I-GT2 TQFN Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). ...

Page 18

... H Update Package Outline Drawings - TQFN 24-Pad 4 x 4mm Update A.C. Characteristics table to include Standard I 02-Dec-08 I Change logo and fine print to ON Semiconductor 17-Mar-10 J Update TQFN Packages ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein ...

Related keywords