Texas Instruments SN74HC21DR, Series 74HC, AND Gate, 2 Circuits, 4 Inputs, 2V to 6V Supply, 5.2mA Output, 19ns @ 6V, 50pF, -40°C to 85°C, 14-SOIC Surface Mount.
| Parameter | Value |
|---|---|
| Series | 74HC |
| Logic type | AND Gate |
| Mounting | Surface Mount |
| Supply voltage | 2V ~ 6V |
| Current - quiescent | 2 µA |
| Current - output high, low | 5.2mA, 5.2mA |
| I/O channels | 4 |
| Operating temperature | -40°C ~ 85°C |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 14-SOIC (0.154\", 3.90mm Width) |
| Number of circuits | 2 |
| Input logic level - low | 0.5V ~ 1.8V |
| Input logic level - high | 1.5V ~ 4.2V |
| Max propagation delay @ v, max CL | 19ns @ 6V, 50pF |
It operates from a 2V to 6V supply.
The part is supplied in a 14-SOIC package (0.154" body width, 3.90 mm) for surface-mount assembly. It is available in Tape & Reel (TR) and Cut Tape (CT) options, fitting standard pick-and-place lines. The supplier device package is 14-SOIC; no special soldering profile is required beyond standard lead-free reflow.
Yes, the 2V to 6V supply range includes 5V. Input logic thresholds scale with VCC, so 5V CMOS and TTL outputs will reliably drive the gate at a 5V supply.
The SN74HC21DR uses the standard 14-SOIC pinout for a dual 4-input AND gate. Pin assignments follow the 74HC21 convention: pins 1-4 and 9-12 are the two sets of four inputs, pin 6 and 8 are the outputs, pin 7 is GND, and pin 14 is VCC.
Yes, the SN74HC21DR is the surface-mount variant of the 74HC21 logic function. It is electrically identical to the through-hole SN74HC21N but in a 14-SOIC package.