CAT9554YI-GT2 ON Semiconductor, CAT9554YI-GT2 Datasheet

IC I/O EXPANDER I2C 8B 16TSSOP

CAT9554YI-GT2

Manufacturer Part Number
CAT9554YI-GT2
Description
IC I/O EXPANDER I2C 8B 16TSSOP
Manufacturer
ON Semiconductor
Datasheet

Specifications of CAT9554YI-GT2

Interface
I²C, SMBus
Number Of I /o
8
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
16-TSSOP
Includes
POR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
9554YI-GT2
CAT9554YI-GT2TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CAT9554YI-GT2
Manufacturer:
ON
Quantity:
663
Part Number:
CAT9554YI-GT2
Manufacturer:
TI
Quantity:
80
8-bit I²C and SMBus I/O Port with Interrupt
FEATURES
APPLICATIONS
BLOCK DIAGRAM
Notes:
(1) All I/Os are set to inputs at RESET.
© 2008 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
8 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 16-lead SOIC and TSSOP, and
16-pad TQFN (4 x 4mm) packages
White goods (dishwashers, washing machines)
Handheld devices (cell phones, PDAs, digital
cameras)
Data Communications (routers, hubs and
servers)
SDA
SCL
V
V
CC
A0
A1
A2
SS
(1)
FILTER
INPUT
(1)
POWER-ON
RESET
I
CONTROL
2
C/SMBUS
1
WRITE pulse
READ pulse
DESCRIPTION
The CAT9554 and CAT9554A are CMOS devices that
provide 8-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 needed: sensors, power
switches, LEDs, pushbuttons, and fans.
The CAT9554/9554A consist of an input port register,
an output port register, a configuration register, a
polarity
compatible serial interface.
Any of the eight I/Os can be configured as an input or
output by writing to the configuration register. The
system master can invert the CAT9554/9554A input
data by writing to the active-high polarity inversion
register.
The CAT9554/9554A features an active low interrupt
output which indicates to the system master that an
input state has changed.
The device’s extended addressing capability allows up
to 8 devices to share the same bus. The CAT9554A is
identical to the CAT9554 except the fixed part of the
I²C slave address is different. This allows up to 16 of
devices (eight CAT9554 and eight CAT9554A) to be
connected on the same bus.
8-BIT
For Ordering Information details, see page 15.
OUTPUT
inversion
PORTS
INPUT/
LP FILTER
CAT9554, CAT9554A
register
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
0
1
2
3
4
5
6
7
V
CC
and
INT
an
Doc. No. MD-9002, Rev. F
I²C/SMBus-

Related parts for CAT9554YI-GT2

CAT9554YI-GT2 Summary of contents

Page 1

I²C and SMBus I/O Port with Interrupt FEATURES (1) 400kHz I²C bus compatible 2.3V to 5.5V operation Low stand-by current 5V tolerant I/Os 8 I/O pins that default to inputs at power-up High drive capability Individual I/O configuration Polarity ...

Page 2

CAT9554, CAT9554A PIN CONFIGURATION SOIC (W), TSSOP ( PIN DESCRIPTION SOIC / TSSOP TQFN ...

Page 3

D.C. OPERATING CHARACTERISTICS V = 2.3 to 5.5V -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 current stbh V Power-on reset ...

Page 4

CAT9554, CAT9554A 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 ...

Page 5

A.C. TEST CONDITIONS Input Rise and Fall time CMOS Input Voltages CMOS Input Reference Voltages TTL Input Voltages TTL Input Reference Voltages Output Reference Voltages ¯¯¯ Output Load: SDA, INT Output Load: I/ SCL t SU:STA SDA IN ...

Page 6

CAT9554, CAT9554A 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 ...

Page 7

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 Data ...

Page 8

CAT9554, CAT9554A FUNCTIONAL DESCRIPTION The CAT9554 and CAT9554A general purpose input/ output (GPIO) peripherals provide up to eight I/O ports, controlled through an I²C compatible serial interface The CAT9554/54A support the transmission protocol. This I²C Bus protocol defines any device ...

Page 9

CAT9554, CAT9554A 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 ...

Page 10

CAT9554, CAT9554A The output port register sets the outgoing logic levels of the I/O ports, defined as outputs by the configuration register. Bit values in this register have no effect on I/O pins defined as inputs. Reads from the output ...

Page 11

POWER-ON RESET OPERATION When the power supply is applied to V internal power-on reset pulse CAT9554/9554A in a reset state until V V level. At this point, the reset condition is released POR slave address R ...

Page 12

CAT9554, CAT9554A PACKAGE OUTLINE DRAWINGS (1) (2) SOIC 16-Lead 150mils (W) PIN#1 IDENTIFICATION TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MS-012 Doc. No. MD-9002 ...

Page 13

TSSOP 16-Lead 4.4mm ( PIN#1 IDENTIFICATION TOP VIEW D SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MO-153. © 2008 SCILLC. All rights reserved Characteristics subject to ...

Page 14

CAT9554, CAT9554A (1) (2) TQFN 16-Pad 4 x 4mm (HV4) D PIN#1 INDEX AREA TOP VIEW SYMBOL MIN NOM A 0.70 0.75 A1 0.00 0.02 A3 0.20 REF b 0.25 0.30 D 3.90 4.00 D2 2.00 – E 3.90 4.00 ...

Page 15

... ORDERING PART NUMBER Part Number Package CAT9554WI-G SOIC CAT9554WI-GT2 SOIC CAT9554YI-G TSSOP CAT9554YI-GT2 TSSOP CAT9554HV4I-G TQFN CAT9554HV4I-GT2 TQFN Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is NiPdAu. (3) The device used in the above example is a CAT9554WI-GT2 (SOIC, Industrial Temperature, NiPdAu, Tape & Reel, 2,000/Reel). ...

Page 16

... Update A.C. Characteristics table to include Standard I 01-Dec-08 F Change logo and fine print to ON Semiconductor 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. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “ ...

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