Description
BUY 74HC85N https://www.utsource.net/itm/p/98056.html
4-bit magnitude comparator - Description: 4-Bit Magnitude Comparator ; Logic switching levels: CMOS ; Number of pins: 16 ; Output drive capability: +/- 5.2 mA ; Power dissipation considerations: Low Power or Battery Applications ; Propagation delay: 18@5V ns; Voltage: 2.0-6.0 V
Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
Supply Voltage |
VCC |
- |
2.0 |
- |
6.0 |
V |
Input Low Voltage |
VIL |
VCC = 4.5V to 5.5V |
0.0 |
- |
1.5 |
V |
Input High Voltage |
VIH |
VCC = 4.5V to 5.5V |
3.5 |
- |
VCC |
V |
Output Low Voltage |
VOL |
IOL = 4mA, VCC = 4.5V to 5.5V |
0.0 |
- |
0.4 |
V |
Output High Voltage |
VOH |
IOH = -0.4mA, VCC = 4.5V to 5.5V |
2.4 |
- |
VCC |
V |
Propagation Delay Time |
tpd |
VCC = 4.5V to 5.5V, fo = 10MHz |
- |
18 |
- |
ns |
Power Dissipation |
PD |
Per Package |
- |
- |
100 |
mW |
Operating Temperature |
TA |
- |
-40 |
- |
85 |
°C |
Storage Temperature |
TSTG |
- |
-65 |
- |
150 |
°C |
Instructions for Using 74HC85N
Power Supply:
- Ensure the supply voltage (VCC) is within the range of 2.0V to 6.0V.
- Connect the ground (GND) pin to the system ground.
Input Signals:
- Apply input signals that meet the specified input low (VIL) and input high (VIH) voltages.
- Avoid applying voltages outside the VCC range to prevent damage.
Output Signals:
- The output low (VOL) and output high (VOH) voltages should be within the specified limits.
- Ensure the load connected to the output does not exceed the maximum current ratings.
Propagation Delay:
- The propagation delay time (tpd) is crucial for timing considerations in your circuit. It should be accounted for in the design to ensure proper operation.
Temperature Considerations:
- Operate the device within the specified operating temperature range (-40°C to 85°C).
- Store the device within the storage temperature range (-65°C to 150°C).
Handling Precautions:
- Handle the device with care to avoid static discharge, which can damage the IC.
- Follow proper soldering techniques to prevent thermal shock.
Pin Configuration:
- Refer to the datasheet for the specific pin configuration and function of each pin.
- Ensure correct orientation during installation to avoid damage.
Testing and Debugging:
- Use a multimeter to verify the power supply and ground connections.
- Test the input and output signals to ensure they meet the expected levels.
- If issues arise, check for proper connections and signal integrity.
(For reference only)
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