PCA9554

활성

인터럽트, 약한 풀업 및 구성 레지스터를 지원하는 8비트 2.3~5.5V I2C/SMBus I/O 확장기

지금 주문

데이터 시트

document-pdfAcrobat PCA9554 Remote 8-Bit I2C AND SMBus I/O Expander With Interrupt Output and Configuration Registers datasheet (Rev. D) (영어) PDF | HTML

이 제품의 최신 버전이 있습니다

open-in-new

대안 비교

비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품

TCA9554

활성

인터럽트, 약한 풀업 및 구성 레지스터를 지원하는 8비트 1.65~5.5V I2C/SMBus I/O 확장기 Performance enhancements for power-on reset, interrupt, and lower voltage operation.

PCA9554

활성

데이터 시트

지금 주문

제품 상세 정보

Number of I/Os

Features

Configuration registers, Interrupt pin

Supply voltage (min) (V)

2.3

Supply voltage (max) (V)

5.5

Addresses

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

Number of I/Os

Features

Configuration registers, Interrupt pin

Supply voltage (min) (V)

2.3

Supply voltage (max) (V)

5.5

Addresses

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

SOIC (DW)

106.09 mm² 10.3 x 10.3

SSOP (DB)

48.36 mm² 6.2 x 7.8

TSSOP (PW)

32 mm² 5 x 6.4

TVSOP (DGV)

23.04 mm² 3.6 x 6.4

I²C to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
Operating Power-Supply Voltage Range of 2.3 V to 5.5 V
5-V Tolerant I/Os
400-kHz Fast I²C Bus
Three Hardware Address Pins Allow up to Eight Devices on the I²C/SMBus
Input/Output Configuration Register
Polarity Inversion Register
Internal Power-On Reset
Power-Up With All Channels Configured as Inputs
No Glitch On Power Up
Latched Outputs With High-Current Drive Maximum Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

I²C to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
Operating Power-Supply Voltage Range of 2.3 V to 5.5 V
5-V Tolerant I/Os
400-kHz Fast I²C Bus
Three Hardware Address Pins Allow up to Eight Devices on the I²C/SMBus
Input/Output Configuration Register
Polarity Inversion Register
Internal Power-On Reset
Power-Up With All Channels Configured as Inputs
No Glitch On Power Up
Latched Outputs With High-Current Drive Maximum Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

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 I²C bus. Thus, the PCA9554 can remain a simple slave device.

The device’s outputs (latched) have high-current drive capability for directly driving LEDs and low current consumption.

Three hardware pins (A0, A1, and A2) are used to program and vary the fixed I²C address and allow up to eight devices to share the same I²C bus or SMBus.

The PCA9554 is pin-to-pin and I²C address compatible with the PCF8574. However, software changes are required, due to the enhancements in the PCA9554 over the PCF8574.

The PCA9554 and PCA9554A are identical except for their fixed I²C address. This allows for up to 16 of these devices (eight of each) on the same I²C/SMBus.

The device’s outputs (latched) have high-current drive capability for directly driving LEDs and low current consumption.

Three hardware pins (A0, A1, and A2) are used to program and vary the fixed I²C address and allow up to eight devices to share the same I²C bus or SMBus.

The PCA9554 is pin-to-pin and I²C address compatible with the PCF8574. However, software changes are required, due to the enhancements in the PCA9554 over the PCF8574.

The PCA9554 and PCA9554A are identical except for their fixed I²C address. This allows for up to 16 of these devices (eight of each) on the same I²C/SMBus.

filter

기타 I2C 범용 I/O(GPIO) 찾기

다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

star

=TI에서 선정한 이 제품의 인기 문서

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.

11개 모두 보기

	유형	직함		날짜
*	Data sheet	PCA9554 Remote 8-Bit I2C AND SMBus I/O Expander With Interrupt Output and Configuration Registers datasheet (Rev. D)	PDF \| HTML	2021/03/11
	Application note	Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A)	PDF \| HTML	2024/07/03
	Application note	I2C Dynamic Addressing		2019/04/25
	Selection guide	Logic Guide (Rev. AB)		2017/06/12
	Application note	Choosing the Correct I2C Device for New Designs	PDF \| HTML	2016/09/07
	Application note	Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)		2015/12/02
	Application note	Understanding the I2C Bus	PDF \| HTML	2015/06/30
	Application note	Maximum Clock Frequency of I2C Bus Using Repeaters		2015/05/15
	Application note	I2C Bus Pull-Up Resistor Calculation	PDF \| HTML	2015/02/13
	Application note	Programming Fun Lights With TI's TCA6507		2007/11/30
	Application note	Semiconductor Packing Material Electrostatic Discharge (ESD) Protection		2004/07/08

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

설계 툴

I2C-DESIGNER — I2C 디자이너 툴

Use the I2C Designer tool to quickly resolve conflicts in addressing, voltage level and frequency in I2C based designs. Enter master and slave inputs to automatically generate an I2C tree or easily build a custom solution. This tool will help designers save time and comply with the I2C standard (...)

클라우드에서 평가

시뮬레이션 툴

PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)

요청

시뮬레이션 툴

TINA-TI — SPICE 기반 아날로그 시뮬레이션 프로그램

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)

사용 설명서: PDF

View Options