935276422518 datasheet, PDF - EEWORLD Datasheet

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935276422518: Description8 I/O, PIA-GENERAL PURPOSE, PDSO16, 7.50 MM, PLASTIC, MS-013, SOT162-1, SOP-16; CategoryThe embedded processor and controller Microcontrollers and processors; File Size585KB，35 Pages; ManufacturerNXP; Websitehttps://www.nxp.com

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935276422518 Overview

8 I/O, PIA-GENERAL PURPOSE, PDSO16, 7.50 MM, PLASTIC, MS-013, SOT162-1, SOP-16

935276422518 Parametric

Parameter Name	Attribute value
Maker	NXP
package instruction	7.50 MM, PLASTIC, MS-013, SOT162-1, SOP-16
Reach Compliance Code	unknown
ECCN code	EAR99
JESD-30 code	R-PDSO-G16
length	10.3 mm
Number of I/O lines	8
Number of ports	1
Number of terminals	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Maximum seat height	2.65 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 form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
width	7.5 mm
uPs/uCs/peripheral integrated circuit type	PARALLEL IO PORT, GENERAL PURPOSE

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PCA9554; PCA9554A

8-bit I

C-bus and SMBus I/O port with interrupt

Rev. 9 — 19 March 2013

Product data sheet

1. General description

The PCA9554 and PCA9554A are 16-pin CMOS devices that provide 8 bits of General

Purpose parallel Input/Output (GPIO) expansion for I

C-bus/SMBus applications and

were developed to enhance the NXP Semiconductors family of I

C-bus I/O expanders.

The improvements include higher drive capability, 5 V I/O tolerance, lower supply current,

individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O

expanders provide a simple solution when additional I/O is needed for ACPI power

switches, sensors, push buttons, LEDs, fans, and so on.

The PCA9554/PCA9554A consist of an 8-bit Configuration register (Input or Output

selection); 8-bit Input Port register, 8-bit Output Port register and an 8-bit Polarity

Inversion register (active HIGH or active LOW operation). The system master can enable

the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for

each input or output is kept in the corresponding Input Port or Output Port register. The

polarity of the read register can be inverted with the Polarity Inversion register. All

registers can be read by the system master. Although pin-to-pin and I

C-bus address

compatible with the PCF8574 series, software changes are required due to the

enhancements and are discussed in

Application Note AN469.

The PCA9554/PCA9554A open-drain interrupt 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. The power-on reset sets the registers to

their default values and initializes the device state machine.

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

C-bus address and allow up to eight

devices to share the same I

C-bus/SMBus. The PCA9554A is identical to the PCA9554

except that the fixed I

C-bus address is different allowing up to sixteen of these devices

(eight of each) on the same I

C-bus/SMBus.

2. Features and benefits



Operating power supply voltage range of 2.3 V to 5.5 V

5 V tolerant I/Os

Polarity Inversion register

Active LOW interrupt output

Low standby current

Noise filter on SCL/SDA inputs

No glitch on power-up

Internal power-on reset

8 I/O pins which default to 8 inputs

0 Hz to 400 kHz clock frequency

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