Description
BUY 74HC21AP https://www.utsource.net/itm/p/1701130.html
Dual 4-input AND gate
| Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
| Supply Voltage |
VCC |
|
2.0 |
|
6.0 |
V |
| Input Low Voltage |
VIL |
VIN = GND |
|
0.8 |
|
V |
| Input High Voltage |
VIH |
VIN = VCC |
|
2.0 |
|
V |
| Output Low Voltage |
VOL |
IO = 4mA |
|
0.1 |
|
V |
| Output High Voltage |
VOH |
IO = -4mA |
|
4.7 |
|
V |
| Propagation Delay Time |
tpd |
VCC = 4.5V, TA=25°C |
9 |
|
|
ns |
| Power Dissipation |
PD |
|
|
|
100 |
mW |
Instructions for Use:
Supply Voltage (VCC):
- Ensure the supply voltage is within the range of 2.0V to 6.0V for optimal operation.
Input Voltages (VIL and VIH):
- For reliable low input recognition, keep input voltages below 0.8V.
- For reliable high input recognition, ensure input voltages are above 2.0V.
Output Voltages (VOL and VOH):
- When sinking current up to 4mA, the output should not exceed 0.1V.
- When sourcing current up to -4mA, the output should be at least 4.7V.
Propagation Delay Time (tpd):
- The typical propagation delay time is 9ns at a supply voltage of 4.5V and ambient temperature of 25°C.
Power Dissipation (PD):
- Keep the power dissipation under 100mW to avoid overheating and potential damage to the device.
Handling:
- Handle with care as ESD (Electrostatic Discharge) can damage the IC. Use proper anti-static measures.
Application:
- This device is suitable for use in digital circuits requiring AND-OR-Invert functions.
(For reference only)
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