Texas Instruments SN74LS21N Gates and Inverters
IC GATE AND 2CH 4-INP 14DIP
Same model may have multiple batches, images only for reference.
Technical Specifications
Texas Instruments SN74LS21N Gates and Inverters technical specifications.
General
Related Parts Comparison (SN74LS21N vs SN74LS151DR vs SN74LS153DR vs SN74LS155ADR)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Package / Case | 14-DIP | 16-SOIC | 16-SOIC | 16-SOIC |
| Mounting Type | Through Hole | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Supply Voltage | 5V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Lifecycle Status | Active | Active | Active | Active |
| Current Output High Low | 400µA, 8mA | 400µA, 8mA | 400µA, 8mA | 400µA, 8mA |
| Circuit | -- | 1 x 8:1 | 2 x 4:1 | 1 x 2:4 |
| Independent Circuits | -- | 1 | 1 | 2 |
| Type | -- | Multiplexer | Multiplexer | Decoder/Demultiplexer |
| Voltage Supply Source | -- | Single Supply | Single Supply | Single Supply |
| Action |
Texas Instruments SN74LS21N Gates and Inverters Overview
Dual 4-input bipolar AND gate IC, operating from 4.75V to 5.25V with a typical 5V supply. Features 2 channels, each with 4 input lines and 1 output line, designed for through-hole mounting in a 14-PDIP package. Offers a low-level output current of 8mA and a high-level output current of -400uA, with a propagation delay of 20ns.
This RoHS compliant component operates within a temperature range of 0°C to 70°C.
