74AC00 datasheet(4/8 Pages) STMICROELECTRONICS

部件名	74AC00

功能描述	QUAD 2-INPUT NAND GATE

PDF	8 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

4 / 8 page

74AC00

4/8

CAPACITIVE CHARACTERISTICS

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without

load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/4 (per gate)

TEST CIRCUIT

CL = 50pF or equivalent (includes jig and probe capacitance)

RL = R1 = 500Ω or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

WAVEFORM: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

TA = 25°C

-40 to 85°C

-55 to 125°C

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

CIN

Input Capacitance

5.0

CPD

Power Dissipation

Capacitance

(note 1)

5.0

fIN = 10MHz

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