PCA9555PW ,Interface IC, Interface Controller - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Popularity Score

175 points

Part No

PCA9555PW
Manufacturer

TI
ChipWorker Part#

CW2821518
Category

Interface IC, Interface Controller
Package

TSSOP-24
Description

TEXAS INSTRUMENTS PCA9555PW I/O Expander, 16Bit, 400kHz, I2C, SMBus, 2.3V, 5.5V, TSSOP
Documentation

Datasheet
Ships from

Moscow
Наличие

In Stock
Estimated Price

$ 1

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PCA9555PW Specifications

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Attribute	Attribute Value

Part Number	PCA9555PW
Manufacturer	TI
ChipWorker Part#	CW2821518
Category	Interface IC, Interface Controller
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	24 Pin
Case/Package	TSSOP-24
Supply Voltage (DC)	2.30V ~ 5.50V
Number of Outputs	2 Output
Number of Positions	24 Position
Clock Speed	400 kHz
Voltage Nodes	2.70 V, 3.30 V, 3.60 V, 5.00 V
Number of Inputs and Outputs	16 Input IO
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	2.3V ~ 5.5V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	2.3 V
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Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

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Product Description

The PCA9555PW is a 16-bit I/O Expander for the two-line bidirectional bus (I²C) is designed for 2.3 to 5.5V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I²C interface [serial clock (SCL), serial data (SDA)]. The PCA9555 consists of two 8-bit configuration (input or output selection), input port, output port and polarity inversion (active high or active low operation) registers. At power on, the I/Os are configured as inputs. 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 or Output register. The polarity of the input port register can be inverted with the Polarity Inversion register. The device outputs (latched) have high-current drive capability for directly driving LEDs. All registers can be read by the system master.
Open-drain active-low interrupt (INT)\ output
Compatible with most microcontrollers
400kHz Fast I²C bus
Address by 3 hardware address pins for use of up to 8 devices
Polarity inversion register
Latched outputs with high-current drive capability for directly driving LEDs
1µA Maximum low standby-current consumption
Green product and no Sb/Br
Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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