Datasheet > PCA9505_10

PCA9505_10

更新时间： 2024-11-26 10:17:11

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
34页	266K
描述
40-bit I2C-bus I/O port with RESET, OE and INT

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PCA9505_10 数据手册

PCA9505/06

40-bit I²C-bus I/O port with RESET, OE and INT

Rev. 4 — 3 August 2010

Product data sheet

1. General description

The PCA9505/PCA9506 provide 40-bit parallel input/output (I/O) port expansion for

I²C-bus applications organized in 5 banks of 8 I/Os. At 5 V supply voltage, the outputs are

capable of sourcing 10 mA and sinking 15 mA with a total package load of 600 mA to

allow direct driving of 40 LEDs. Any of the 40 I/O ports can be configured as an input or

output. Output ports are totem-pole and their logic state changes at the Acknowledge

(bank change). The PCA9505 is identical to the PCA9506 except that it includes 100 kΩ

internal pull-up resistors on all the I/Os. The PCA9506 does not include the internal

pull-ups on the I/Os to reduce power consumption when used as outputs or when the

input is driven by a push-pull driver.

The device can be configured to have each input port to be masked in order to prevent it

from generating interrupts when its state changes and to have the I/O data logic state to

be inverted when read by the system master.

An open-drain interrupt (INT) output pin allows monitoring of the input pins and is asserted

each time a change occurs in one or several input ports (unless masked).

The Output Enable (OE) pin 3-states any I/O selected as an output and can be used as an

input signal to blink or dim LEDs (PWM with frequency > 80 Hz and change duty cycle).

The internal Power-On Reset (POR) or hardware reset (RESET) pin initializes the 40 I/Os

as inputs. Three address select pins configure one of 8 slave addresses.

The PCA9506 is available in 56-pin TSSOP and HVQFN packages, while the PCA9505 is

available only in a TSSOP package. They are both specified over the −40 °C to +85 °C

industrial temperature range.

2. Features and benefits

Standard mode (100 kHz) and Fast mode (400 kHz) compatible I²C-bus serial

interface

2.3 V to 5.5 V operation with 5.5 V tolerant I/Os

40 configurable I/O pins that default to inputs at power-up

PCA9505 includes 100 kΩ internal pull-up resistors on all the I/Os

Outputs:

Totem-pole (10 mA source, 15 mA sink) with controlled edge rate output structure

Active LOW output enable (OE) input pin 3-states all outputs

Output state change on Acknowledge

Open-drain active LOW interrupt (INT) output pin allows monitoring of logic level

change of pins programmed as inputs

12 3 4 5 6 7...34

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与PCA9505_10相关器件

型号	品牌	获取价格	描述	数据表
PCA9505DGG	NXP	获取价格	40-bit I2C-bus I/O port with RESET, OE and INT
PCA9505DGG,112	NXP	获取价格	PCA9505/06 - 40-bit I2C-bus I/O port with RESET, OE and INT TSSOP 56-Pin
PCA9505DGG-T	NXP	获取价格	IC 8 I/O, PIA-GENERAL PURPOSE, PDSO56, 6.10 MM, PLASTIC, MO-153, SOT364-1, TSSOP-56, Paral
PCA9506	NXP	获取价格	40-bit I2C-bus I/O port with RESET, OE, and INT
PCA9506BS	NXP	获取价格	40-bit I2C-bus I/O port with RESET, OE, and INT
PCA9506BS,118	NXP	获取价格	PCA9505/06 - 40-bit I2C-bus I/O port with RESET, OE and INT QFN 56-Pin
PCA9506DGG	NXP	获取价格	40-bit I2C-bus I/O port with RESET, OE, and INT
PCA9506DGG,512	NXP	获取价格	PCA9505/06 - 40-bit I2C-bus I/O port with RESET, OE and INT TSSOP 56-Pin
PCA9506DGG,518	NXP	获取价格	PCA9505/06 - 40-bit I2C-bus I/O port with RESET, OE and INT TSSOP 56-Pin
PCA9507	NXP	获取价格	2-wire serial bus extender for HDMI DDC I2C-bus and SMBus

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