MC74LCX646

更新时间： 2024-09-14 23:05:47

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		/
页数	文件大小	规格书
10页	172K
描述
LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER

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中文翻译

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数据手册

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MC74LCX646 数据手册

SEMICONDUCTOR TECHNICAL DATA

The MC74LCX646 is a high performance, non–inverting octal

transceiver/registered transceiver operating from a 2.7 to 3.6V supply.

High impedance TTL compatible inputs significantly reduce current

loading to input drivers while TTL compatible outputs offer improved

LOW–VOLTAGE CMOS

OCTAL TRANSCEIVER/

REGISTERED TRANSCEIVER

switching noise performance. A V specification of 5.5V allows

MC74LCX646 inputs to be safely driven from 5V devices. The

MC74LCX646 is suitable for memory address driving and all TTL level

bus oriented transceiver applications.

Data on the A or B bus will be clocked into the registers as the

appropriate clock pin goes from a LOW–to–HIGH logic level. Output

Enable (OE) and DIR pins are provided to control the transceiver outputs.

In the transceiver mode, data present at the high impedance port may be

stored in either the A or the B register or in both. The select controls (SBA,

SAB) can multiplex stored and real–time (transparent mode) data. The

direction control (DIR) determines which bus will receive data when the

enable OE is active LOW. In the isolation mode (OE HIGH), A data may

be stored in the B register or B data may be stored in the A register. Only

one of the two buses, A or B, may be driven at one time.

DW SUFFIX

PLASTIC SOIC

CASE 751E–04

SD SUFFIX

PLASTIC SSOP

• Designed for 2.7 to 3.6V V

• 5V Tolerant — Interface Capability With 5V TTL Logic

• Supports Live Insertion and Withdrawal

Operation

CASE 940D–03

• I

OFF

• LVTTL Compatible

Specification Guarantees High Impedance When V

= 0V

DT SUFFIX

PLASTIC TSSOP

CASE 948H–01

• LVCMOS Compatible

• 24mA Balanced Output Sink and Source Capability

• Near Zero Static Supply Current in All Three Logic States (10µA)

Substantially Reduces System Power Requirements

• Latchup Performance Exceeds 500mA

• ESD Performance: Human Body Model >2000V; Machine Model >200V

PIN NAMES

Pins

Function

CBA SBA OE

A0–A7

B0–B7

CAB, CBA

SAB, SBA

DIR, OE

Side A Inputs/Outputs

Side B Inputs/Outputs

Clock Pulse Inputs

Select Control Inputs

Output Enable Inputs

Pinout: 24–Lead Package (Top View)

CAB SAB DIR

A7 GND

11/96

Motorola, Inc. 1996

REV 2

12 3 4 5 6 7...10

中文翻译

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与MC74LCX646相关器件

型号	品牌	获取价格	描述	数据表
MC74LCX646DT	MOTOROLA	获取价格	LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER
MC74LCX646DT	ONSEMI	获取价格	LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER
MC74LCX646DTR2	MOTOROLA	获取价格	LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, PLASTIC, TSSOP-24
MC74LCX646DW	MOTOROLA	获取价格	LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER
MC74LCX646DW	ONSEMI	获取价格	LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER
MC74LCX646DWR2	MOTOROLA	获取价格	LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, PLASTIC, SOIC-24
MC74LCX646DWR2	ONSEMI	获取价格	LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, PLASTIC, SOIC-24
MC74LCX646SD	MOTOROLA	获取价格	LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER
MC74LCX646SD	ONSEMI	获取价格	LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER
MC74LCX646SDR2	MOTOROLA	获取价格	Registered Bus Transceiver, LVC/LCX/Z Series, 1-Func, 8-Bit, True Output, CMOS, PDSO24, PL

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