Description
BUY SN74LS260N https://www.utsource.net/itm/p/1700572.html
DUAL 5-INPUT NOR GATE
| Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
| Supply Voltage |
VCC |
4.75 |
- |
5.25 |
V |
Recommended operating range is 4.75V to 5.25V |
| Input Low Voltage |
VIL |
0.0 |
- |
0.8 |
V |
Maximum input voltage recognized as low |
| Input High Voltage |
VIH |
2.0 |
- |
VCC |
V |
Minimum input voltage recognized as high |
| Output Low Voltage |
VOL |
0.0 |
0.3 |
0.5 |
V |
At IOL = 16 mA |
| Output High Voltage |
VOH |
2.4 |
3.4 |
VCC - 0.5 |
V |
At IOH = -0.4 mA |
| Input Current |
IIN |
-1.0 |
- |
1.0 |
mA |
Maximum input current |
| Output Current (Low) |
IOL |
- |
- |
16 |
mA |
Maximum output current when low |
| Output Current (High) |
IOH |
-0.4 |
- |
- |
mA |
Maximum output current when high |
| Propagation Delay Time |
tpd |
- |
9 |
15 |
ns |
Typical at VCC = 5V, TA = 25°C |
| Power Dissipation |
PD |
- |
- |
500 |
mW |
Maximum power dissipation per package |
| Operating Temperature |
TA |
-55 |
- |
125 |
°C |
Ambient temperature range |
| Storage Temperature |
TSTG |
-65 |
- |
150 |
°C |
Storage temperature range |
Instructions for Use:
Power Supply:
- Ensure the supply voltage (VCC) is within the recommended range of 4.75V to 5.25V.
- Connect the ground (GND) pin to a stable 0V reference.
Input Signals:
- Apply input signals that meet the VIL and VIH specifications to ensure correct logic levels.
- Keep input currents within the specified limits to avoid damage to the device.
Output Signals:
- The output pins can sink up to 16 mA and source up to 0.4 mA. Ensure the load connected to the output does not exceed these limits.
- Check the VOL and VOH values to ensure the output levels are suitable for the downstream circuitry.
Propagation Delay:
- Account for the propagation delay time (tpd) in your timing calculations to ensure proper synchronization of signals.
Thermal Management:
- Operate the device within the specified temperature ranges to prevent thermal damage.
- If the device is expected to dissipate significant power, consider using a heat sink or ensuring adequate airflow.
Storage:
- Store the device in a dry environment within the specified storage temperature range to prevent damage.
Handling:
- Handle the device with care to avoid static discharge, which can damage the sensitive components.
- Use appropriate ESD protection measures during handling and assembly.
Schematic and Layout:
- Follow recommended PCB layout guidelines to minimize noise and ensure reliable operation.
- Use decoupling capacitors close to the power supply pins to filter out noise and stabilize the supply voltage.
By adhering to these parameters and instructions, you can ensure the reliable and efficient operation of the SN74LS260N.
(For reference only)
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