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TI PCA9555RGERRoHS

Manufacturer
TI
MPN
PCA9555RGER
LCSC Part #
C2652275
Packaging
VQFN-24-EP(4x4)
Customer #
Key Attributes
16-bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers
Datasheetpdf iconTI PCA9555RGER
In-Stock: 2,466
2,466 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 2.1792$ 2.18
10+$ 2.0032$ 20.03
30+$ 1.8793$ 56.38
100+$ 1.7668$ 176.68
500+$ 1.7147$ 857.35
1,000+$ 1.6951$ 1695.10
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Interface/I/O Expanders
ManufacturerTI
PackagingVQFN-24-EP(4x4)
Operating Temperature-40℃~+85℃
Interrupt OutputInterrupt Output
Output TypePush-Pull
Number of I/O16
FeaturesReset function;Built-in LED driver;IO level configurable;Cascade and address expansion
Voltage - Supply2.3V~5.5V
Quiescent Supply Current1uA
Number of Supporting Devices8
Current - Output High(IOH)10mA
InterfaceI2C;SMBus
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

This 16-bit expander for two-wire bidirectional bus (I2C) is designed to operate between 2.3V and 5.5V VCC. Via the I2C interface [Serial Clock (SCL), Serial Data (SDA)], it provides general-purpose remote I/O expansion for most microcontroller families. The PCA9555 consists of two 8-bit configuration (selectable input or output), 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 controller can enable I/Os as inputs or outputs by writing to the I/O configuration bits. The data for each input or output is held in the corresponding input or output register. The polarity of the input port registers can be inverted using the polarity inversion register. All registers can be read by the system master controller.

Features

AI Translation
  • 1μA standby current consumption (maximum)
  • I2C to parallel port expander
  • Open-drain active-low interrupt output
  • 5V-tolerant I/O ports
  • Compatible with most microcontrollers
  • 400kHz fast I2C bus
  • 3 hardware address pins for addressing up to 8 devices
  • Polarity inversion register
  • Latched outputs with maximum high-current drive capability for direct LED driving
  • Latch-up performance exceeding 100mA, compliant with JESD78 Class II
  • ESD protection exceeding JESD22 requirements
  • 2000V Human Body Model (A114-A)
  • 200V Machine Model (A115-A)
  • 1000V Charged Device Model (C101)

Applications

AI Translation
  • Servers
  • Routers (telecom switching equipment)
  • Personal computers
  • Personal electronics
  • Industrial automation equipment
  • Products using GPIO-constrained processors