Texas Instruments 74LS series, SN74LS02DR, quad 2-input NOR gate, 4.75V to 5.25V supply, 15ns propagation delay at 5V/15pF, 400µA/16mA output drive, 0°C to 70°C, 14-SOIC surface mount.
| Parameter | Value |
|---|---|
| Series | 74LS |
| Logic type | NOR Gate |
| Mounting | Surface Mount |
| Supply voltage | 4.75V ~ 5.25V |
| Current - output high, low | 400µA, 16mA |
| I/O channels | 2 |
| Operating temperature | 0°C ~ 70°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 14-SOIC (0.154\", 3.90mm Width) |
| Number of circuits | 4 |
| Input logic level - low | 0.8V |
| Input logic level - high | 2V |
| Max propagation delay @ v, max CL | 15ns @ 5V, 15pF |
The SN74LS02DR is a quad 2-input NOR gate from the 74LS series. Each of the four independent gates performs the NOR function on two inputs, with a propagation delay of 15 ns at 5V and 15 pF load. Output drive is rated at 400 µA sourcing and 16 mA sinking.
No last-time-buy or end-of-life notice is on record. For a BOM freeze or a long-production-run line, this part is a safe choice.
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Key specs: 4.75V to 5.25V supply, 15 ns propagation delay at 5V and 15 pF, 400 µA / 16 mA output drive, 0°C to 70°C operating range, 14-SOIC package.
Yes, the SN74LS02DR is ROHS3 compliant.
The SN74LS02DR is the surface-mount 14-SOIC variant of the same die as the SN74LS02N (through-hole DIP). Functionally identical — same logic, same timing, same supply range. The DR suffix replaces the N suffix for surface-mount assembly.