MC14490L ,Hex Contact Bounce EliminatorMAXIMUM RATINGS* (Voltages Referenced to V )SSPIN ASSIGNMENTÎÎÎÎÎSymbol Parameter Value UnitÎÎV DC ..
MC14490P ,Hex Bounce EliminatorMAXIMUM RATINGS* (Voltages Referenced to V )SSPIN ASSIGNMENTÎÎÎÎÎSymbol Parameter Value UnitÎÎV DC ..
MC14490P. ,Hex Bounce EliminatorBLOCK DIAGRAM+VDDDATA15 Aout1/2–BITA 1 4–BIT STATIC SHIFT REGISTERinDELAYSHIFT LOADOSCILLATOR V = P ..
MC14495DW1 ,HEXADECIMAL-TO-SEVEN SEGMENT LATCH/DECODER LED DRIVERMOTOROLAI SEMICONDUCTOR -lIlIitilll-lll.ll-lll-lllll-l1l8lll-lllllNlltll+TECHNICAL DATAMC14495-1CMO ..
MC14495P1 ,HEXADECIMAL-TO-SEVEN SEGMENT LATCH/DECODER LED DRIVERMOTOROLAI SEMICONDUCTOR -lIlIitilll-lll.ll-lll-lllll-l1l8lll-lllllNlltll+TECHNICAL DATAMC14495-1CMO ..
MC14497P ,PCM Remote Control Transmitterfeatures is its low powerIn the FSK mode, two modulating frequencies are used asconsumption (in the ..
MC68HC705C4A ,MC68HC705C4A, MC68HSC705C4A HCMOS Microcontroller Unit Technical Data
MC68HC705C4ACFB ,Microcontrollers
MC68HC705C4ACFB ,Microcontrollers
MC68HC705C4ACFN ,Microcontrollers
MC68HC705C4ACFN ,Microcontrollers
MC68HC705C8 ,HCMOS Microcontroller UnitMC68HC705C8A/DRev. 2.0HC 5MC68HC705C8AMC68HSC705C8AHCMOS Microcontroller UnitTECHNICAL DATATechnica ..
MC14490L-MC14490P-MC14490P.
Hex Contact Bounce Eliminator
-The MC14490 is constructed with complementary MOS enhancement
mode devices, and is used for the elimination of extraneous level changes
that result when interfacing with mechanical contacts. The digital contact
bounce eliminator circuit takes an input signal from a bouncing contact and
generates a clean digital signal four clock periods after the input has
stabilized. The bounce eliminator circuit will remove bounce on both the
“make” and the “break” of a contact closure. The clock for operation of the
MC14490 is derived from an internal R–C oscillator which requires only an
external capacitor to adjust for the desired operating frequency (bounce
delay). The clock may also be driven from an external clock source or the
oscillator of another MC14490 (see Figure 5).
NOTE: Immediately after power–up, the outputs of the MC14490 are in
indeterminate states. Diode Protection on All Inputs Six Debouncers Per Package Internal Pullups on All Data Inputs Can Be Used as a Digital Integrator, System Synchronizer, or Delay
Line Internal Oscillator (R–C), or External Clock Source TTL Compatible Data Inputs/Outputs Single Line Input, Debounces Both “Make” and “Break” Contacts Does Not Require “Form C” (Single Pole Double Throw) Input Signal Cascadable for Longer Time Delays Schmitt Trigger on Clock Input (Pin 7) Supply Voltage Range = 3.0 V to 18 V Chip Complexity: 546 FETs or 136.5 Equivalent Gates
BLOCK DIAGRAMAin1
OSCin7
OSCout9
Bin14
Cin3
Din12
Ein5
Fin10 Bout Cout Dout Eout Fout
SEMICONDUCTOR TECHNICAL DATA
