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TCA8418 Status: ACTIVE

I2C Controlled Keypad Scan IC


      
         
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 TCA8418
Operating Temp Range(Celsius)-40 to 85  
RatingCatalog  
Pin/Package24QFN  
Max Frequency(kHz)1000  
FunctionKeypad Scan  
I2C Address0110100  
Vcc range(V)1.65 to 3.6  
Enable PinNo  
Open–Drain I/O TypeNo  
5V Tolerant I/ONo  
Push–Pull I/O TypeYes  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • PCA9306: Dual Bi-Directional I2C-Bus and SMBus Voltage Level-Translator
  • TCA6507: Low-Voltage 7-Bit I2C and SMBus LED Driver With Intensity Control and Shutdown
  • TCA9535: Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers
  • PCA9548A: 8-Channel I2C Switch With Reset
  • PCA9535: Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers

Product Information

Features

  • Operating Power-Supply Voltage Range of 1.65 V to 3.6 V
  • Supports QWERTY Keypad Operation Plus GPIO Expansion
  • 18 GPIOs Can Be Configured into Eight Inputs and Ten Outputs
    to Support an 8 × 10 Keypad Array (80 Buttons)
  • ESD Protection Exceeds JESD 22 on all 18 GPIO Pins and non GPIO pins
    • 2000-V Human Body Model (A114-A)
    • 1000-V Charged Device Model (C101)
  • Low Standby (Idle) Current Consumption: 3 µA
  • Polling Current Drain 70 µA for One Key Pressed
  • 10 Byte FIFO to Store 10 Key Presses and Releases
  • Open-Drain Active-Low Interrupt Output, Asserted when
    Key is Pressed and Key is Released
  • Minimum 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 Packages
    • WCSP (YFP): 2 mm × 2 mm; 0.4 mm pitch
    • QFN (RTW): 4 mm × 4 mm; 0.5 mm pitch
  • APPLICATIONS
    • Smart Phones
    • PDAs
    • GPS Devices

View All Features in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
TCA8418RTWRACTIVE-40 to 851.20 | 1kuQFN (RTW) | 24 3000 | LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:19 AM GMT, 09 Feb 2010
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTCA8418RTWR
AsiaWPI >1k
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TCA8418RTWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TCA8418 Help

Datasheet

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
PCA9306 Dual Bi-Directional I2C-Bus and SMBus Voltage Level-Translator I2C (SL)-I2C SPECIAL FUNCTIONS TI customers also evaluated this product.
TCA6507 Low-Voltage 7-Bit I2C and SMBus LED Driver With Intensity Control and Shutdown I2C (SL)-I2C SPECIAL FUNCTIONS TI customers also evaluated this product.
TCA9535 Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers I2C (SL)-I2C IO EXPANDERS TI customers also evaluated this product.
PCA9548A 8-Channel I2C Switch With Reset I2C (SL)-I2C MULTIPLEXERS AND SWITCHES TI customers also evaluated this product.
PCA9535 Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers I2C (SL)-I2C IO EXPANDERS TI customers also evaluated this product.
UCC28600 8-Pin Quasi Resonant Flyback Green Mode Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.

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