PCA9554TS datasheet, PDF - EEWORLD Datasheet

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PCA9554TS: DescriptionInterface - I/O Expanders 8-BIT I2C FM TP GPIO INT PU; CategoryThe embedded processor and controller Microcontrollers and processors; File Size2MB，36 Pages; ManufacturerNXP; Websitehttps://www.nxp.com; Environmental Compliance

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PCA9554TS Overview

Interface - I/O Expanders 8-BIT I2C FM TP GPIO INT PU

PCA9554TS Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	NXP
Parts packaging code	TFP
package instruction	LSSOP, SSOP20,.25
Contacts	20
Reach Compliance Code	unknown
ECCN code	EAR99
JESD-30 code	R-PDSO-G20
JESD-609 code	e4
length	6.5 mm
Humidity sensitivity level	1
Number of digits	8
Number of I/O lines	8
Number of ports	1
Number of terminals	20
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Encapsulate equivalent code	SSOP20,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	2.5/5 V
Certification status	Not Qualified
Maximum seat height	1.5 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	2.3 V
Nominal supply voltage	3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	4.4 mm
uPs/uCs/peripheral integrated circuit type	PARALLEL IO PORT, GENERAL PURPOSE

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PCA9554B; PCA9554C

Low-voltage 8-bit I

C-bus and SMBus low power I/O port with

interrupt, weak pull-up

Rev. 2 — 4 August 2015

Product data sheet

1. General description

The PCA9554B and PCA9554C are low-voltage 8-bit General Purpose Input/Output

(GPIO) expanders with interrupt and weak pull-up resistors for I

C-bus/SMBus

applications. The only difference between the PCA9554B and PCA9554C is their I

C fixed

address allowing a larger number of the same device on the I

C-bus with no chance of

address conflict. NXP I/O expanders provide a simple solution when additional I/Os are

needed while keeping interconnections to a minimum, for example, in ACPI power

switches, sensors, push buttons, LEDs, fan control, etc.

In addition to providing a flexible set of GPIOs, the wide V

range of 1.65 V to 5.5 V allow

the PCA9554B/PCA9554C to interface with next-generation microprocessors and

microcontrollers where supply levels are dropping down to conserve power.

The PCA9554B/PCA9554C contain a register set of 8-bit Configuration, Input, Output,

and Polarity Inversion registers.

The PCA9554B is a pin-to-pin replacement for the PCA9554, while the PCA9554C

replaces the PCA9554A. Both of these devices replace other industry-standard part

numbers. More fully-featured parts PCAL9554B and PCAL9554C are also available with

Agile I/O features. See the respective data sheet for more details.

The PCA9554B/PCA9554C open-drain interrupt (INT) output is activated when any input

state differs from its corresponding Input Port register state and is used to indicate to the

system master that an input state has changed.

INT can be connected to the interrupt input of a microcontroller. By sending an interrupt

signal on this line, the remote I/O can inform the microcontroller if there is incoming data

on its ports without having to communicate via the I

C-bus. Thus, the

PCA9554B/PCA9554C can remain a simple slave device.

The device outputs have 25 mA sink capabilities for directly driving LEDs while consuming

low device current.

The power-on reset sets the registers to their default values and initializes the device state

machine.

All input/output pins have weak pull-up resistors connected to them to eliminate external

components.

Three hardware pins (A0, A1, A2) select the fixed I

C-bus address and allow up to eight

devices to share the same I

C-bus/SMBus. The PCA9554B and PCA9554C differ only in

their base I

C-bus addresses permitting a total of 16 devices on the I

C-bus, minimizing

the chance for address conflict, even in the most complex system.

PCA9554TS Related Products

	PCA9554TS	PCA9554D	PCA9554DB
Description	Interface - I/O Expanders 8-BIT I2C FM TP GPIO INT PU	Interface - I/O Expanders I2C I/O EXPANDER GP	Interface - I/O Expanders I2C I/O EXPANDER GP
Is it lead-free?	Lead free	Lead free	Lead free
Is it Rohs certified?	conform to	conform to	conform to
Maker	NXP	NXP	NXP
Parts packaging code	TFP	SOIC	SSOP
package instruction	LSSOP, SSOP20,.25	SOP-16	SSOP, SSOP16,.3
Contacts	20	16	16
Reach Compliance Code	unknown	compliant	compliant
ECCN code	EAR99	EAR99	EAR99
JESD-30 code	R-PDSO-G20	R-PDSO-G16	R-PDSO-G16
JESD-609 code	e4	e4	e4
length	6.5 mm	10.3 mm	6.2 mm
Humidity sensitivity level	1	1	1
Number of digits	8	8	8
Number of I/O lines	8	8	8
Number of ports	1	1	1
Number of terminals	20	16	16
Maximum operating temperature	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	LSSOP	SOP	SSOP
Encapsulate equivalent code	SSOP20,.25	SOP16,.4	SSOP16,.3
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	260	260
power supply	2.5/5 V	2.5/5 V	2.5/5 V
Certification status	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.5 mm	2.65 mm	2 mm
Maximum supply voltage	5.5 V	5.5 V	5.5 V
Minimum supply voltage	2.3 V	2.3 V	2.3 V
Nominal supply voltage	3 V	3 V	3 V
surface mount	YES	YES	YES
technology	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	NICKEL PALLADIUM GOLD
Terminal form	GULL WING	GULL WING	GULL WING
Terminal pitch	0.65 mm	1.27 mm	0.65 mm
Terminal location	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	30	30	30
width	4.4 mm	7.5 mm	5.3 mm
uPs/uCs/peripheral integrated circuit type	PARALLEL IO PORT, GENERAL PURPOSE	PARALLEL IO PORT, GENERAL PURPOSE	PARALLEL IO PORT, GENERAL PURPOSE

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