74HCT21NB 查看數據表（PDF） - Philips Electronics

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74HCT21NB

Dual 4-input AND gate

Philips Electronics 

Philips Semiconductors

Dual 4-input AND gate

Product specification

74HC/HCT21

DC CHARACTERISTICS FOR 74HC

For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Output capability: standard

ICC category: SSI

AC CHARACTERISTICS FOR 74HC

GND = 0 V; tr = tf = 6 ns; CL = 50 pF

Tamb (°C)

SYMBOL PARAMETER

74HC

+25

−40 to+85

min. typ. max. min. max.

tPHL/ tPLH propagation delay

33 110

140

nA, nB, nC, nD to nY

12 22

28

10 19

24

tTHL/ tTLH output transition time

19 75

95

7 15

19

6 13

16

UNIT

−40 to+125

min. max.

165 ns

33

28

110 ns

22

19

TEST CONDITIONS

VCC WAVEFORMS

(V)

2.0 Fig.6

4.5

6.0

2.0 Fig.6

4.5

6.0

December 1990

5

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