Features: • 140 MHz Typ. Clock• Outputs Source/Sink 24 mA• Operating Voltage Range: 2.0 to 6.0 V• High Noise ImmunityPinoutSpecifications Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) 0.5 to +7.0 V Vin DC Input Volta...
MC74AC4020: Features: • 140 MHz Typ. Clock• Outputs Source/Sink 24 mA• Operating Voltage Range: 2.0 to 6.0 V• High Noise ImmunityPinoutSpecifications Symbol Parameter Value ...
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Features: Operating range: 38 to 47 Gb/s (min.) (note)Signal regeneration with full-rate clock sig...
Symbol |
Parameter |
Value |
Unit |
VCC |
DC Supply Voltage (Referenced to GND) |
0.5 to +7.0 |
V |
Vin |
DC Input Voltage (Referenced to GND) |
0.5 to VCC +0.5 |
V |
Vout |
DC Output Voltage (Referenced to GND) |
0.5 to VCC +0.5 |
V |
Iin |
DC Input Current, per Pin |
±20 |
mA |
Iout |
DC Output Sink/Source Current, per Pin |
±50 |
mA |
ICC |
DC VCC or GND Current per Output Pin |
±50 |
mA |
PD |
Power Dissipation in Still Air Plastic** SOIC Package** |
750 500 |
mW |
Tstg |
Storage Temperature |
65 to +150 |
|
TL |
Lead Temperature, 1 mm from Case for 10 seconds (Plastic DIP or SOIC Package) |
260 |
The MC74AC4020 consists of 14 master-slave flip-flops with 12 stages brought out to pins. The output of each flip-flop feeds the next and the frequency at each output is half that of the preceding one. The state of the counter advances on the negative-going edge of the Clock input. Reset is asynchronous and active-high.
State changes of the Q outputs do not occur simultaneously because of internal ripple delays. Therefore, decoded output signals are subject to decoding spikes and may have to be gated with the Clock of the MC74AC4020 for some designs