Texas Instruments 74LS series, SN74LS05DR, hex inverter with open-collector outputs, 6 circuits × 1 input, 4.75V–5.25V supply, 32ns @ 5V/15pF, 14-SOIC, 0°C–70°C, ROHS3.
| Parameter | Value |
|---|---|
| Series | 74LS |
| Logic type | Inverter |
| Mounting | Surface Mount |
| Supply voltage | 4.75V ~ 5.25V |
| Current - output high, low | -, 8mA |
| I/O channels | 1 |
| Operating temperature | 0°C ~ 70°C |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Features | Open Collector |
| Case | 14-SOIC (0.154\", 3.90mm Width) |
| Number of circuits | 6 |
| Input logic level - low | 0.8V |
| Input logic level - high | 2V |
| Max propagation delay @ v, max CL | 32ns @ 5V, 15pF |
The SN74LS05DR is a hex inverter from the 74LS Schottky logic family, with six independent inverter gates and open-collector outputs in a 14-SOIC package.
Maximum propagation delay is 32 ns at 5 V supply with a 15 pF load. The 8 mA sink current per output drives a standard TTL input with headroom.
The part is ROHS3 compliant.
Both are hex inverters with the same pinout and supply range. The SN74LS05DR has open-collector outputs; the SN74LS04 has totem-pole (push-pull) outputs. The 74LS05 can sink 8 mA but cannot source current; the 74LS04 can both source and sink. The 74LS05 allows wired-OR connections and level shifting to higher voltages via an external pull-up resistor; the 74LS04 cannot do wired-OR without damaging the outputs.
Yes. The SN74LS05DR is designed for a 4.75 V to 5.25 V supply, making it a direct fit for standard 5 V TTL and 5 V CMOS logic systems. The 32 ns propagation delay is specified at 5 V with a 15 pF load.