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CD74HCT221ME4

CD74HCT221ME4

CD74HCT221ME4

Texas Instruments

5V Programmable Timers 16 Pins 5V SOIC

SOT-23

CD74HCT221ME4 Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Mount Surface Mount
Package / Case SOIC
Number of Pins 16
Weight 141.690917mg
JESD-609 Code e4
Pbfree Code yes
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 16
ECCN Code EAR99
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Max Operating Temperature125°C
Min Operating Temperature -55°C
Technology CMOS
Terminal Position DUAL
Terminal FormGULL WING
Peak Reflow Temperature (Cel) 260
Number of Functions 2
Supply Voltage 5V
Pin Count16
Operating Supply Voltage5V
Power Supplies5V
Temperature GradeMILITARY
Max Supply Voltage5.5V
Min Supply Voltage4.5V
Current - Output 4mA
Propagation Delay18 ns
Quiescent Current8μA
Turn On Delay Time63 ns
Family HCT
Logic Function Multivibrator
Output Polarity COMPLEMENTARY
High Level Output Current-4mA
Low Level Output Current4mA
Independent Circuits 2
Schmitt Trigger InputYes
Number of Data/Clock Inputs 2
Length 9.9mm
Height Seated (Max) 1.75mm
Width 3.9mm
Radiation HardeningNo
RoHS StatusRoHS Compliant
Lead Free Contains Lead
In-Stock:3008 items

CD74HCT221ME4 Product Details

CD74HCT221ME4 Overview


SOIC comes in a package with the timer clock. To mount this digital timer with Surface Mount. The minimum operating temperature of the chip must not be lower than -55°C. It's best to use the timer clock when the temperature is below 125°C. The timer clock contains 16 pins. The digital timer's operating supply voltage is rated 5V voltage. The supply voltage of the programmable timer can rate 5V. The sum of the IC chip pins is 16 . The number of the chip's terminations sums up to 16. The timer clock has 141.690917mg in weight. The minimum supply voltage of the chip must not be lower than 4.5V. The supply voltage of this chip should not exceed 5.5V. The timer clock runs quiescent current at 8μA.

CD74HCT221ME4 Features


Max Operating temperature at -55°C
Quiescent Current at 8μA


CD74HCT221ME4 Applications


There are a lot of Texas Instruments
CD74HCT221ME4 Programmable Timers & Oscillators applications.


  • Tamper Detection
  • Home Automation Sensors
  • Thermostats
  • Consumer Electronics
  • Remote Sensors
  • White Goods
  • Electric Vehicles
  • Always On Systems
  • Clutch Actuator circuit
  • Car Door Handle circuit

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