HD74UH02EL Просмотр технического описания (PDF) - Renesas Electronics

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HD74UH02EL

2-input NOR Gate

Renesas Electronics 

HD74UH02

Switching Characteristics

(CL = 15 pF, tr = tf = 6 ns, VCC = 5 V)

Item

Output rise/fall time

Propagation delay time

Symbol

tTLH

tTHL

tPLH

tPHL

Ta = 25°C

Min Typ Max Unit Test Conditions

—

5

10

ns

See Test circuit

—

7

15

ns

See Test circuit

(CL = 50 pF, tr = tf = 6 ns)

Item

VCC Ta = 25°C

Ta = –40 to 85°C

Symbol (V) Min Typ Max Min

Max

Unit Test Conditions

Output rise/fall time

tTLH

2.0 — 50 125 —

tTHL

4.5 — 14 25 —

155

ns See Test circuit

31

6.0 — 12 21 —

26

Propagation delay time tPLH

tPHL

2.0 — 48 100 —

4.5 — 12 20 —

125

ns See Test circuit

25

6.0 — 9 17 —

21

Input capacitance

CIN

— — 5 10 —

10

pF

Equivalent capacitance CPD — — 10 — —

—

Note: CPD is equivalent capacitance inside of the IC calculated from the operating current without load (see

test circuit). The average operating current without load is calculated according to the expression

below.

ICC(opr) = CPD• VCC• fIN + ICC

Rev.5.00, Jan.30.2004, page 4 of 6

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