Description
BUY 74HC682 https://www.utsource.net/itm/p/1009294.html
8-bit magnitude comparator
| Parameter |
Symbol |
Conditions |
Min |
Typical |
Max |
Unit |
| Supply Voltage |
VCC |
- |
2.0 |
- |
6.0 |
V |
| Input Low Voltage |
VIL |
IL = -1 μA |
0.3 |
- |
- |
V |
| Input High Voltage |
VIH |
IH = 1 μA |
- |
- |
2.0 |
V |
| Output Low Voltage |
VOL |
IOL = 4 mA |
0.1 |
- |
- |
V |
| Output High Voltage |
VOH |
IOH = -4 mA |
- |
- |
VCC - 0.2 |
V |
| Propagation Delay Time |
tpd |
VCC = 5 V, TA = 25°C |
- |
14 |
- |
ns |
| Power Dissipation |
PD |
Per Package |
- |
- |
100 |
mW |
| Operating Temperature |
TA |
- |
-40 |
- |
85 |
°C |
| Storage Temperature |
TSTG |
- |
-65 |
- |
150 |
°C |
Instructions for Using 74HC682:
Power Supply:
- Ensure the supply voltage (VCC) is within the range of 2.0 V to 6.0 V.
- Connect the ground (GND) pin to a stable reference point.
Input Signals:
- For a valid low input, ensure the voltage (VIL) is less than or equal to 0.3 V.
- For a valid high input, ensure the voltage (VIH) is greater than or equal to 2.0 V.
Output Signals:
- When the output is low, the voltage (VOL) will be less than or equal to 0.1 V.
- When the output is high, the voltage (VOH) will be at least VCC - 0.2 V.
Propagation Delay:
- The typical propagation delay time (tpd) is 14 ns at VCC = 5 V and TA = 25°C.
Temperature Considerations:
- Operate the device within the temperature range of -40°C to 85°C.
- Store the device within the temperature range of -65°C to 150°C.
Power Dissipation:
- Ensure the power dissipation (PD) does not exceed 100 mW per package.
Handling:
- Handle the device with care to avoid static damage.
- Use appropriate ESD protection when handling the device.
Layout and Design:
- Ensure proper decoupling capacitors are placed close to the VCC and GND pins to minimize noise.
- Follow good PCB layout practices to ensure reliable operation.
(For reference only)
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