Product
0
TCA6418E
  • TCA6418E
  • TCA6418E

TCA6418E

ACTIVE

18-bit 1.65- to 3.6-V I2C/SMBus I/O expander with interrupt, reset & config registers

Texas Instruments TCA6418E Product Info

1 April 2026 1

Parameters

Number of I/Os

18

Features

1-MHz maximum frequency, Configuration registers, Interrupt pin, Reset pin

Supply voltage (min) (V)

1.65

Supply voltage (max) (V)

3.6

Addresses

1

Rating

Catalog

Frequency (max) (MHz)

1

Operating temperature range (°C)

-40 to 85

Package

DSBGA (YFP)-25-6.75999999999999792000000000000016 mm² 2.5999999999999996 x 2.5999999999999996

Features

  • Operating Power-Supply Voltage Range of 1.65 V to 3.6 V
  • 18 GPIOs Configurable as Inputs or Outputs
  • ESD Protection Exceeds JESD 22 on Non-GPIO Pins
    • 2000-V Human Body Model (A114-A)
    • 1000-V Charged Device Model (C101)
  • Low Standby (Idle) Current Consumption: 3 µA
  • Supports 1-MHz Fast Mode Plus I2C Bus
  • Open-Drain Active-Low Interrupt Output, Asserted When Key is Pressed
    or Key is Released
  • Selectable Debounce Time of 50 µs
  • Schmitt-Trigger Action Allows Slow Input Transition and
    Better Switching Noise Immunity at the SCL and SDA Inputs:
    Typical Vhys at 1.8 V is 0.18 V
  • Latch-Up Performance Exceeds 200 mA Per JESD 78, Class II
  • Very Small Package
    • WCSP (YFP): 2 mm × 2 mm; 0.4 mm pitch
  • Operating Power-Supply Voltage Range of 1.65 V to 3.6 V
  • 18 GPIOs Configurable as Inputs or Outputs
  • ESD Protection Exceeds JESD 22 on Non-GPIO Pins
    • 2000-V Human Body Model (A114-A)
    • 1000-V Charged Device Model (C101)
  • Low Standby (Idle) Current Consumption: 3 µA
  • Supports 1-MHz Fast Mode Plus I2C Bus
  • Open-Drain Active-Low Interrupt Output, Asserted When Key is Pressed
    or Key is Released
  • Selectable Debounce Time of 50 µs
  • Schmitt-Trigger Action Allows Slow Input Transition and
    Better Switching Noise Immunity at the SCL and SDA Inputs:
    Typical Vhys at 1.8 V is 0.18 V
  • Latch-Up Performance Exceeds 200 mA Per JESD 78, Class II
  • Very Small Package
    • WCSP (YFP): 2 mm × 2 mm; 0.4 mm pitch

Description

The TCA6418E is a 18 channel GPIO expansion device with integrated ESD protection. It can operate from 1.65 V to 3.6 V and has 18 general purpose inputs/outputs (GPIO) that can be used via the I2C interface [serial clock (SCL), serial data (SDA)].

The major benefit of this device is it frees up the processor from having to individually monitor changes in multiple inputs and also frees up the GPIOs on the processor to drive other outputs.. This provides power and bandwidth savings. The TCA6418E is also ideal for usage with processors that have limited GPIOs.

The TCA6418E is a 18 channel GPIO expansion device with integrated ESD protection. It can operate from 1.65 V to 3.6 V and has 18 general purpose inputs/outputs (GPIO) that can be used via the I2C interface [serial clock (SCL), serial data (SDA)].

The major benefit of this device is it frees up the processor from having to individually monitor changes in multiple inputs and also frees up the GPIOs on the processor to drive other outputs.. This provides power and bandwidth savings. The TCA6418E is also ideal for usage with processors that have limited GPIOs.

Subscribe to Welllinkchips !
Your Name
* Email
Popular Posts
Featured Parts More >
Submit a request
CONTACT US
Company address

WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK

Send Enquiry
SEND e-MAIL
Office hour from 9am to 6pm ,
Monday through Friday, UTC/GMT +8