DM74LS51M [FAIRCHILD]

Dual 2-Wide 2-Input, 2-Wide 3-Input AND-OR-INVERT Gate; 双-2-宽2输入， 2级3输入与或反相门


型号：	DM74LS51M
厂家：	FAIRCHILD SEMICONDUCTOR
描述：	Dual 2-Wide 2-Input, 2-Wide 3-Input AND-OR-INVERT Gate 双-2-宽2输入， 2级3输入与或反相门栅
文件：	总4页 (文件大小：50K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

August 1986

Revised March 2000

DM74LS51

Dual 2-Wide 2-Input, 2-Wide 3-Input

AND-OR-INVERT Gate

General Description

This device contains two independent combinations of

gates each of which performs the logic AND-OR-INVERT

function. Each package contains one 2-wide 2-input and

one 2-wide 3-input AND-OR-INVERT gates.

Ordering Code:

Order Number Package Number

Package Description

DM74LS51M

DM74LS51N

M14A

N14A

14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow

14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Function Table

Y1 = (A1) (B1) (C1) + (D1) (E1) (F1)

Inputs

Output

Other Combinations

Y2 = ((A2) (B2) + (C2) (D2))

Inputs

Output

Other combinations

H = HIGH Logic Level

L = LOW Logic Level

X = Either LOW or HIGH Logic Level

DS006369

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Absolute Maximum Ratings(Note 1)

Note 1: The “Absolute Maximum Ratings” are those values beyond which

the safety of the device cannot be guaranteed. The device should not be

operated at these limits. The parametric values defined in the Electrical

Characteristics tables are not guaranteed at the absolute maximum ratings.

The “Recommended Operating Conditions” table will define the conditions

for actual device operation.

Supply Voltage

Input Voltage

Operating Free Air Temperature Range

Storage Temperature Range

0°C to +70°C

−65°C to +150°C

Recommended Operating Conditions

Symbol

Parameter

Min

4.75

Nom

Max

Units

V_CC

V_IH

V_IL

I_OH

I_OL

T_A

Supply Voltage

5.25

HIGH Level Input Voltage

LOW Level Input Voltage

HIGH Level Output Current

LOW Level Output Current

Free Air Operating Temperature

0.8

−0.4

°C

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol Parameter Conditions

Input Clamp Voltage = Min, I = −18 mA

Typ

Min

Max

Units

(Note 2)

−1.5

HIGH Level

= Min, I = Max,

2.7

3.4

Output Voltage

LOW Level

= Max

= Min, I = Max,

0.35

0.25

0.5

Output Voltage

= Min

= 4 mA, V = Min

0.4

0.1

Input Current @ Max Input Voltage

HIGH Level Input Current

= Max, V = 7V

µA

= Max, V = 2.7V

LOW Level Input Current

= Max, V = 0.4V

−0.36

−100

1.6

Short Circuit Output Current

Supply Current with Outputs HIGH

Supply Current with Outputs LOW

= Max (Note 3)

= Max

−20

0.8

1.4

CCH

= Max

2.8

CCL

Note 2: All typicals are at V = 5V, T = 25°C.

Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.

Switching Characteristics

at V_CC= 5V and T = 25°C

= 50 pF, R = 2 kΩ

Symbol

Parameter

Units

Min

Max

Propagation Delay Time

LOW-to-HIGH Level Output

Propagation Delay Time

HIGH-to-LOW Level Output

PLH

PHL

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Physical Dimensions inches (millimeters) unless otherwise noted

14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow

Package Number M14A

www.fairchildsemi.com

Physical Dimensions inches (millimeters) unless otherwise noted (Continued)

14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Package Number N14A

Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and

Fairchild reserves the right at any time without notice to change said circuitry and specifications.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT

DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD

SEMICONDUCTOR CORPORATION. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the

body, or (b) support or sustain life, and (c) whose failure

to perform when properly used in accordance with

instructions for use provided in the labeling, can be rea-

sonably expected to result in a significant injury to the

user.

2. A critical component in any component of a life support

device or system whose failure to perform can be rea-

sonably expected to cause the failure of the life support

device or system, or to affect its safety or effectiveness.

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