74HC21_5

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 05 — 7 May 2009

4 of 14

NXP Semiconductors

74HC21

Dual 4-input AND gate

8.

Recommended operating conditions

9.

Static characteristics

Table 5.

Recommended operating conditions

Voltages are referenced to GND (ground = 0 V)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

supply voltage

2.0

5.0

6.0

V

input voltage

0

-

V

output voltage

0

-

V

∆t/∆V

input transition rise and fall

rate

-

-

625

ns/V

-

1.67

139

ns/V

-

-

83

ns/V

ambient temperature

−40

-

+125

°C

Table 6.

Static characteristics

At recommended operating conditions; voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

25

°C

−40 °C to +85 °C −40 °C to +125 °C Unit

Min

Typ

Max

Min

Max

Min

Max

HIGH-level

input voltage

1.5

1.2

-

1.5

-

1.5

-

V

3.15

2.4

-

3.15

-

3.15

-

V

4.2

3.2

-

4.2

-

4.2

-

V

LOW-level

input voltage

-

0.8

0.5

-

0.5

-

0.5

V

-

2.1

1.35

-

1.35

-

1.35

V

-

2.8

1.8

-

1.8

-

1.8

V

HIGH-level

output voltage

1.9

2.0

-

1.9

-

1.9

-

V

4.4

4.5

-

4.4

-

4.4

-

V

5.9

6.0

-

5.9

-

5.9

-

V

4.32

-

3.84

-

3.7

-

V

5.81

-

5.34

-

5.2

-

V

LOW-level

output voltage

-

0

0.1

-

0.1

-

0.1

V

-

0

0.1

-

0.1

-

0.1

V

-

0

0.1

-

0.1

-

0.1

V

-

0.15

0.26

-

0.33

-

0.4

V

-

0.16

0.26

-

0.33

-

0.4

V

input leakage

current

--

±0.1

-

±1-

±1

µA

supply current

-

-

2.0

-

20

-

40

µA

input

capacitance

-

3.5

-

-

-

-

-

pF