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24-WQFN Exposed Pad
Integrated Circuits (ICs)

TCA6416ARTWR

Active
Texas Instruments

16-BIT TRANSLATING 1.65- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT, RESET & CONFIG REGISTERS

24-WQFN Exposed Pad
Integrated Circuits (ICs)

TCA6416ARTWR

Active
Texas Instruments

16-BIT TRANSLATING 1.65- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT, RESET & CONFIG REGISTERS

Technical Specifications

Parameters and characteristics for this part

SpecificationTCA6416ARTWR
Clock Frequency400 kHz
Current - Output Source/Sink [custom]10 mA
Current - Output Source/Sink [custom]25 mA
FeaturesPOR
InterfaceI2C, SMBus
Interrupt OutputTrue
Mounting TypeSurface Mount
Number of I/O16
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Output TypePush-Pull
Package / Case24-WFQFN Exposed Pad
Supplier Device Package24-WQFN (4x4)
Voltage - Supply [Max]5.5 V
Voltage - Supply [Min]1.65 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 2.54
10$ 1.64
25$ 1.40
100$ 1.13
250$ 1.00
500$ 0.92
1000$ 0.86
Digi-Reel® 1$ 2.54
10$ 1.64
25$ 1.40
100$ 1.13
250$ 1.00
500$ 0.92
1000$ 0.86
Tape & Reel (TR) 3000$ 0.78
6000$ 0.73
9000$ 0.71
NewarkEach (Supplied on Cut Tape) 1$ 2.00
10$ 1.91
25$ 1.82
50$ 1.74
100$ 1.66
250$ 1.61
500$ 1.57
1000$ 1.54
Texas InstrumentsLARGE T&R 1$ 1.23
100$ 1.02
250$ 0.73
1000$ 0.55

Description

General part information

TCA6416A Series

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)].

The major benefit of this device is its wide VCCrange. It can operate from 1.65 V to 5.5 V on the P-port side and on the SDA/SCL side. This allows the TCA6416 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to the dropping power supplies of microprocessors and microcontrollers, some PCB components, such as LEDs, remain at a 5-V power supply.

The bidirectional voltage level translation in the TCA6416 is provided through VCCI. VCCIshould be connected to the VCCof the external SCL/SDA lines. This indicates the VCClevel of the I2C bus to the TCA6416. The voltage level on the P-port of the TCA6416 is determined by the VCCP.