Texas Instruments SN74HCT08PW, 74HCT series quad 2-input AND gate, 4.5 V to 5.5 V supply, 22 ns max propagation delay at 5.5 V / 50 pF, 2 µA quiescent current, -40 to 85 °C, 14-TSSOP package.
| Parameter | Value |
|---|---|
| Series | 74HCT |
| Logic type | AND Gate |
| Mounting | Surface Mount |
| Supply voltage | 4.5V ~ 5.5V |
| Current - quiescent | 2 µA |
| Current - output high, low | 4mA, 4mA |
| I/O channels | 2 |
| Operating temperature | -40°C ~ 85°C |
| Package | Tube |
| Case | 14-TSSOP (0.173\", 4.40mm Width) |
| Number of circuits | 4 |
| Input logic level - low | 0.8V |
| Input logic level - high | 2V |
| Max propagation delay @ v, max CL | 22ns @ 5.5V, 50pF |
The Texas Instruments SN74HCT08PW is a 74HCT-series quad 2-input AND gate. Each gate has TTL-compatible input thresholds: logic-low at 0.8 V, logic-high at 2 V. The 14-TSSOP body (0.173" wide, 4.40 mm) saves board space on mixed-voltage digital boards.
TI lists the part as Active. ROHS3 compliant. Package ships in tubes.
Maximum propagation delay is 22 ns at 5.5 V supply with a 50 pF load. This timing clears hold margins for most 5 V synchronous buses below 20 MHz.
The SN74HC21N is a 74HC-series AND gate with two 4-input gates in a through-hole package — different input count and footprint. The SN74LV08ADR is a 74LV-series quad 2-input AND gate in surface-mount SOIC, operating at 2 V to 5.5 V with faster propagation (7.9 ns at 5 V) and higher output drive (12 mA), but its LV inputs are not TTL-compatible. Neither is a drop-in pin-for-pin replacement; for a dual-source, qualify the SN74HCT08PW against the exact PCB footprint and threshold requirements.