SNJ54F20W [TI]

军用 2 通道 4 输入 4.5V 至 5.5V 双极与非门 | W | 14 | -55 to 125;


型号：	SNJ54F20W
厂家：	TEXAS INSTRUMENTS
描述：	军用 2 通道 4 输入 4.5V 至 5.5V 双极与非门 \| W \| 14 \| -55 to 125 栅栅极
文件：	总5页 (文件大小：70K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

SN54F20, SN74F20

DUAL 4-INPUT POSITIVE-NAND GATES

SDFS041A – MARCH 1987 – REVISED OCTOBER 1993

SN54F20 . . . J PACKAGE

SN74F20 . . . D OR N PACKAGE

(TOP VIEW)

• Package Options Include Plastic

Small-Outline Packages, Ceramic Chip

Carriers, and Standard Plastic and Ceramic

300-mil DIPs

description

These devices contain two independent 4-input

NAND gates. They perform the Boolean functions

Y = A • B • C • D or Y = A + B + C + D in positive

logic.

GND

The SN54F20 is characterized for operation over

the full military temperature range of –55°C to

125°C. The SN74F20 is characterized for

operation from 0°C to 70°C.

SN54F20 . . . FK PACKAGE

(TOP VIEW)

FUNCTION TABLE

(each gate)

20 19

INPUTS

OUTPUT

9 10 11 12 13

NC – No internal connection

†

logic symbol

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

Pin numbers shown are for the D, J, and N packages.

logic diagram, each gate (positive logic)

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

2–1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54F20, SN74F20

DUAL 4-INPUT POSITIVE-NAND GATES

SDFS041A – MARCH 1987 – REVISED OCTOBER 1993

†

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage range, V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V

Input voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.2 V to 7 V

Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 mA to 5 mA

Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V

Current into any output in the low state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA

Operating free-air temperature range: SN54F20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C

SN74F20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C

Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed.

recommended operating conditions

SN54F20

SN74F20

UNIT

MIN NOM

MAX

MIN NOM

MAX

Supply voltage

4.5

5.5

4.5

5.5

High-level input voltage

Low-level input voltage

Input clamp current

0.8

–18

– 1

0.8

–18

– 1

°C

High-level output current

Low-level output current

Operating free-air temperature

–55

125

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

SN54F20

SN74F20

PARAMETER

TEST CONDITIONS

UNIT

‡

MIN TYP

MAX

MIN TYP

MAX

= 4.5 V,

= 4.75 V,

= 4.5 V,

= 5.5 V,

I = –18 mA

–1.2

= – 1 mA

= 20 mA

2.5

3.4

0.3

2.5

2.7

3.4

0.3

0.5

0.1

0.5

0.1

V = 7 V

µA

V = 2.7 V

V = 0.5 V

– 0.6

–150

1.4

– 0.6

–150

1.4

= 0

–60

V = 0

0.9

3.4

0.9

3.4

CCH

CCL

V = 4.5 V

5.1

‡

All typical values are at V

= 5 V, T = 25°C.

Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.

2–2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54F20, SN74F20

DUAL 4-INPUT POSITIVE-NAND GATES

SDFS041A – MARCH 1987 – REVISED OCTOBER 1993

switching characteristics (see Note 2)

= 5 V,

= 50 pF,

= 500 Ω,

= 25°C

= 4.5 V to 5.5 V,

= 50 pF,

= 500Ω,

FROM

(INPUT)

(OUTPUT)

†

PARAMETER

UNIT

= MIN to MAX

′F20

TYP

3.3

SN54F20

SN74F20

MIN

1.6

MAX

MIN

1.2

MAX

MIN

1.6

MAX

PLH

A, B, C, or D

2.8

4.3

6.5

5.3

PHL

†

For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

NOTE 2: Load circuits and waveforms are shown in Section 1.

2–3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54F20, SN74F20

DUAL 4-INPUT POSITIVE-NAND GATES

SDFS041A – MARCH 1987 – REVISED OCTOBER 1993

2–4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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