Datasheet > CD74HCT242

CD74HCT242

更新时间： 2024-09-12 23:04:31

品牌	Logo	应用领域
德州仪器 - TI		总线收发器
页数	文件大小	规格书
7页	51K
描述
High Speed CMOS Logic Quad-Bus Transceiver with Three-State Outputs

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数据手册

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CD74HCT242 数据手册

CD74HCT242 was not acquired from Harris Semiconductor.

CD74HCT242, CD74HC243,

CD74HCT243

Data sheet acquired from Harris Semiconductor

SCHS168

High Speed CMOS Logic

Quad-Bus Transceiver with Three-State Outputs

November 1997

Features

Description

• Typical Propagation Delay (A to B, B to A) of 7ns at

The Harris CD74HCT242, CD74HC243 and CD74HCT243

silicon-gate CMOS three-state bidirectional inverting and

non-inverting buffers are intended for two-way asynchronous

communication between data buses. They have high drive

current outputs which enable high-speed operation when

driving large bus capacitances. These circuits possess the

low power dissipation of CMOS circuits, and have speeds

= 5V, C = 15pF, T = 25 C

L A

[ /Title

(CD74

HCT24

• Three-State Outputs

• Buffered Inputs

• Fanout (Over Temperature Range)

- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads

CD74

HC243

CD74

HCT24

- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads comparable to low power Schottky TTL circuits. They can

drive 15 LSTTL loads.

• Wide Operating Temperature Range . . . -55 C to 125 C

• Balanced Propagation Delay and Transition Times

The CD74HCT242 is an inverting buffer; the CD74HC243

and CD74HCT243 are non-inverting buffers.

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

The states of the output enables (OEB, OEA) determine

both the direction of ﬂow (A to B, B to A), and the three-state

mode.

• HC Types

- 2V to 6V Operation

/Sub-

ject

- High Noise Immunity: N = 30%, N = 30% of V

IL IH CC

at V

= 5V

Ordering Information

(High

Speed

CMOS

Logic

Quad-

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

TEMP. RANGE

PKG.

NO.

PART NUMBER

CD74HC243E

CD74HC243M

CD74HCT243M

NOTES:

( C)

PACKAGE

14 Ld PDIP

14 Ld SOIC

V = 0.8V (Max), V = 2V (Min)

IL IH

-55 to 125

E14.3

- CMOS Input Compatibility, I ≤ 1µA at V , V

OL OH

M14.15

Pinout

CD74HCT242, CD74HC243, CD74HCT243

1. When ordering, use the entire part number. Add the sufﬁx 96 to

obtain the variant in the tape and reel.

(PDIP, SOIC)

TOP VIEW

2. Wafer or die for this part number is available which meets all elec-

trical specifications. Please contact your local sales

OEB

14 V

13 OEA

12 NC

11 B0

10 B1

GND

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

File Number 1488.1

12 3 4 5 6 7

中文翻译

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与CD74HCT242相关器件

型号	品牌	获取价格	描述	数据表
CD74HCT242E	ROCHESTER	获取价格	HCT SERIES, QUAD 1-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP14, PACKAGE-14
CD74HCT242EN	ETC	获取价格	Logic IC
CD74HCT242F	ETC	获取价格	Logic IC
CD74HCT242H	ETC	获取价格	4-Bit Bus Transceiver
CD74HCT242M	RENESAS	获取价格	IC,BUS TRANSCEIVER,SINGLE,4-BIT,HCT-CMOS,SOP,14PIN,PLASTIC
CD74HCT242M96	RENESAS	获取价格	IC,BUS TRANSCEIVER,SINGLE,4-BIT,HCT-CMOS,SOP,14PIN,PLASTIC
CD74HCT242M96	TI	获取价格	HCT SERIES, QUAD 1-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO14, SOIC-14
CD74HCT243	TI	获取价格	High Speed CMOS Logic Quad-Bus Transceiver with Three-State Outputs
CD74HCT243E	ROCHESTER	获取价格	Bus Transceiver, HCT Series, 4-Func, 1-Bit, True Output, CMOS, PDIP14, PACKAGE-14
CD74HCT243E	RENESAS	获取价格	TRANSCEIVER

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