logic

74HC08

Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the 74HC08 family does

The 74HC08 and 74HCT08 are quad 2-input AND gates available in CMOS and TTL input levels across SO14, SSOP14, TSSOP14, and DHVQFN14 packages. These devices operate with a supply voltage of 2.0 to 6.0 V for the HC series and 4.5 to 5.5 V for the HCT series, supporting ambient temperatures from -40 °C to +125 °C. Each gate handles input and output currents up to ±25 mA and features clamp diodes to allow interfacing with voltages exceeding the supply rail. Engineers typically use these components in digital logic circuits to perform basic AND operations within commercial and industrial temperature ranges.

Next step
Start building with 74HC08 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
Ordering code:
01 — Key specifications

74HCT08 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current — 60 µA 216 µA per input pin; VI = VCC- 2.1 V; IO = 0 A; other inputs at VCCor GND; VCC = 4.5 V to 5.5 V; 74HCT08 Nexperia datasheet, p. 5 — Quad 2-input AND gate
output current (abs max) — — 25 mA -0.5 V < VO< VCC+ 0.5 V; io; Limiting values Nexperia datasheet, p. 3 — Table 4. Limiting values
supply voltage range 4.5 V 5 V 5.5 V vcc; Recommended operating conditions Nexperia datasheet, p. 3 — Table 5. Recommended operating conditions
operating temperature -40 °C — 125 °C tamb; Recommended operating conditions Nexperia datasheet, p. 3 — Table 5. Recommended operating conditions
power dissipation (abs max) — — 500 mW Tamb = -40 to +85 °C; ptot; Limiting values Nexperia datasheet, p. 3 — Table 4. Limiting values
input capacitance — 3.5 pF — ci; 74HCT08 Nexperia datasheet, p. 5 — Quad 2-input AND gate
propagation delay — 25 ns 90 ns VCC = 2.0 V; tpd; 74HC08 Nexperia datasheet, p. 5 — Table 7. Dynamic characteristics
output voltage high 4.4 V 4.5 V — IO = -20 μA; voh; 74HCT08 Nexperia datasheet, p. 5 — Quad 2-input AND gate
output voltage low — 0 V 100 mV IO = 20 μA; vol; 74HCT08 Nexperia datasheet, p. 5 — Quad 2-input AND gate
01 — Key specifications

74HC08 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current (abs max) — — 50 mA icc; Limiting values Nexperia datasheet, p. 3 — Table 4. Limiting values
output current (abs max) — — 25 mA -0.5 V < VO< VCC+ 0.5 V; io; Limiting values Nexperia datasheet, p. 3 — Table 4. Limiting values
supply voltage range 2 V 5 V 6 V vcc; Recommended operating conditions Nexperia datasheet, p. 3 — Table 5. Recommended operating conditions
operating temperature -40 °C — 125 °C tamb; Recommended operating conditions Nexperia datasheet, p. 3 — Table 5. Recommended operating conditions
power dissipation (abs max) — — 500 mW Tamb = -40 to +85 °C; ptot; Limiting values Nexperia datasheet, p. 3 — Table 4. Limiting values
propagation delay — 25 ns 90 ns VCC = 2.0 V; tpd; 74HC08 Nexperia datasheet, p. 5 — Table 7. Dynamic characteristics
03 — Alternatives

Closest matches to 74HC08

74HC04 3.6× lower propagation delay, 1.7× lower operating temperature, similar input capacitance
74HC14BQ 2.2× lower output voltage high, 1.7× lower operating temperature, 1.6× higher propagation delay
74HC00 10.0× higher quiescent current, 2.2× lower output voltage high, 1.7× lower operating temperature
74HC164BQ 4.0× higher quiescent current, 2.2× lower output voltage high, 1.7× lower operating temperature
74HCT165BQ 4.0× higher quiescent current, 2.2× lower output voltage high, 1.5× lower propagation delay
74HCT595BQ 2.9× higher operating temperature, 1.1× higher supply voltage range, similar input capacitance
NL17SZ125 3.3× lower power dissipation, 2.8× lower propagation delay, 2.0× lower quiescent current
74HC595D 2.8× higher output current, 2.2× lower output voltage high, 2.1× lower propagation delay
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