U74HCT21L-P14-R [UTC]

AND Gate, HCT Series, 2-Func, 4-Input, CMOS, PDSO14, LEAD FREE, TSSOP-14;


型号：	U74HCT21L-P14-R
厂家：	Unisonic Technologies
描述：	AND Gate, HCT Series, 2-Func, 4-Input, CMOS, PDSO14, LEAD FREE, TSSOP-14 栅光电二极管逻辑集成电路
文件：	总4页 (文件大小：168K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UNISONIC TECHNOLOGIES CO., LTD

U74HCT21

CMOS IC

DUAL 4-INPUT AND GATES

DESCRIPTION

The U74HCT21 contains two independent 4-input AND gates.

They perform the Boolean function Y=A •B •C•D

or Y=A + B +C + D in positive logic.

FEATURES

* Operation Voltage Range: 4.5V~5.5V

* Low Quiescent Current: I_CC=2μA(Max)

* High Speed:

* Low Input Current:

t_PD=15ns @ 4.5V (Typ)

100nA Max

* Inputs are TTL Voltage Compatiabel

ORDERING INFORMATION

Ordering Number

Lead Free

Package

Packing

Halogen Free

U74HCT21L-P14-T

U74HCT21G-P14-T

TSSOP-14

Tube

U74HCT21L-P14-R

U74HCT21G-P14-R

Tape Reel

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QW-R502-656.A

U74HCT21

CMOS IC

PIN CONFIGURATION

V_CC

11 NC

GND

FUNCTION TABLE

INPUT(A)

INPUT(C)

INPUT(D)

OUTPUT(Y)

INPUT(B)

LOGIC DIAGRAM (positive logic)

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U74HCT21

CMOS IC

ABSOLUTE MAXIMUM RATING (unless otherwise specified)

PARAMETER

SYMBOL

V_CC

RATINGS

-0.5 ~ 7

-20

UNIT

Supply Voltage

Input Clamp Current

Output Clamp Current

Output Current

I_IK

℃

I_OK

±20

I_OUT

I_CC

±25

V_CCor GND Current

Storage Temperature

±50

T_STG

-65 ~ +150

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

V_CC

CONDITIONS

MIN

4.5

TYP MAX UNIT

Supply Voltage

5.5

Vcc

V_CC

500

Input Voltage

V_IN

Output Voltage

V_OUT

t_R, t_F

T_A

Input Transition Rise or Fall Rate

Operating Temperature

V_CC=4.5V

℃

-40

STATIC CHARACTERISTICS (T_A= 25°С)

PARAMETER

SYMBOL

V_IH

TEST CONDITIONS

V_CC= 4.5V to 5.5V

MIN

2.0

TYP

MAX UNIT

High-Level Input Voltage

Low-Level Input Voltage

V_IL

V_CC= 4.5V to 5.5V

0.8

V_CC= 4.5V, I_O= -20µA

V_CC= 4.5V, I_O= -4mA

V_CC= 4.5V, I_O= 20µA

V_CC= 4.5V, I_O= 4mA

4.4

4.999

4.3

High-Level Output Voltage

V_OH

V_OL

3.98

0.001

0.17

0.1

Low-Level Output Voltage

Input Leakage Current

0.26

I_I(LEAK)

I_CC

V_CC= 5.5V ,V_IN= V_CCor GND

V_CC= 5.5V, V_IN= V_CCor GND, I_O= 0

One input at V_CC-2.1V,

other inputs at 0 or V_CC

V_CC=4.5V~5.5V

±0.1 ±100

µA

Quiescent Supply Current

Additional Quiescent Supply

Current

△I_CC

100

360

Input Capacitance

C_IN

DYNAMIC CHARACTERISTICS (T_A=25°С, Input: t_R=t_F=6ns, unless otherwise specified )

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

t_PLH, t_PHLV_CC=4.5V, C_L=50pF

Propagation delay from

Input(A or B) to Output(Y)

Output Transition Time

V_CC=4.5V, C_L=50pF

OPERATING CHARACTERISTICS (T_A=25°С, unless otherwise specified)

PARAMETER

Power Dissipation Capacitance

SYMBOL

C_PD

TEST CONDITION

RATINGS

UNIT

No Load

UNISONIC TECHNOLOGIES CO., LTD

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U74HCT21

CMOS IC

TEST CIRCUIT AND WAVEFORMS

Output

C_L(Note)

Note : C_Lincludes probe and jig capacitance.

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.

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