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TCA8418EYFPR The Texas Instruments TCA8418EYFPR is an 18-bit I2C/SMBus keypad scanner IC. It operates from 1.65 V to 3.6 V and supports up to 80 keys.
Mfr Part #:

TCA8418EYFPR

Available from 5 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA8418EYFPR is an 18-bit I2C/SMBus keypad scanner IC. It operates from 1.65 V to 3.6 V and supports up to 80 keys.
✓ Total Stock: 8,580 pcs
$ Price Range: $0.91

TCA8418EYFPR Available from 5 distributors

✓ Authorised
✓ Non-Authorised
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TCA8418EYFPR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Clock Frequency
ESD Protection
Interface
Latch-up Performance
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TCA8418EYFPR Description

Short technical summary and product information.

The TCA8418EYFPR from Texas Instruments is a specialized interface IC designed for keypad scanning. It operates within a voltage range of 1.65 V to 3.6 V and features an I2C/SMBus interface.

 

This device supports up to 80 buttons using its 18 GPIOs and includes features like integrated debounce time and a 10-byte FIFO for key press and release events. It also offers ±15kV HBM ESD protection on GPIO lines and low standby current consumption of 3 µA.

 

The TCA8418EYFPR is suitable for applications such as smartphones, tablets, HMI panels, GPS devices, and MP3 players. It is available in a compact 25-DSBGA package and supports surface mount.

 

Key electrical specifications include a 1 MHz I2C bus speed and latch-up performance exceeding 200 mA per JESD 78, Class II. The operating temperature range is -40 °C to 85 °C.

TCA8418EYFPR Quick Information

Product Type: Keypad Scanner IC
Canonical Name: TCA8418E I2C/SMBus Keypad Scanner
Subcategory: I2C, I3C & SPI ICs

TCA8418EYFPR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TCA8418EYFPR Estimated Pricing

Qty Low High
1+ $0.91 $0.91

Estimated market price range - modelled values for guidance only, not live distributor offers.

TCA8418EYFPR Features

  • 18-bit I2C/SMBus keypad scanner IC.
  • Supports up to 80 buttons with 18 GPIOs.
  • Wide operating voltage from 1.65 V to 3.6 V.
  • Integrated debounce time of 50 µs.
  • Compact 25-DSBGA surface mount package.

TCA8418EYFPR Applications

  • Ideal for smartphone interfaces.
  • Suitable for tablet keypads.
  • Used in HMI panels.
  • Applicable for portable audio devices.
  • Supports GPS device input.

TCA8418EYFPR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the TCA8418EYFPR?

The operating voltage range is 1.65 V to 3.6 V.

What package type is the TCA8418EYFPR available in?

The TCA8418EYFPR is available in a 25-DSBGA package.

What is the operating temperature range for this keypad scanner?

The operating temperature range is -40 °C to 85 °C.

Is the TCA8418EYFPR RoHS compliant?

Yes, the TCA8418EYFPR is RoHS3 Compliant.

How many keys can the TCA8418EYFPR support?

It supports up to 80 buttons using 18 GPIOs.

What is the interface type for the TCA8418EYFPR?

The interface type is I2C and SMBus.

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