MC74F3893A

更新时间： 2024-11-25 04:59:15

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		局域网
页数	文件大小	规格书
5页	38K
描述
QUAD FUTUREBUS BACKPLANE TRANSCEIVER

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中文翻译

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MC74F3893A 数据手册

MC74F3893A

QUAD FUTUREBUS

BACKPLANE TRANSCEIVER

(3 STATE + OPEN COLLECTOR)

QUAD FUTUREBUS

BACKPLANE TRANSCEIVER

(3 STATE + OPEN COLLECTOR)

The MC74F3893A is a quad backplane transceiver and is intended to be

used in very high speed bus systems.

The MC74F3893A interfaces to “Backplane Transceiver Logic” (BTL). BTL

features a reduced (1 V) voltage swing for lower power consumption and a se-

ries diode on the drivers to reduce capacitive loading (< 5 pF).

Incidentwave switching is employed, therefore BTL propagation delays are

short. Although the voltage swing is much less for BTL, so is its receiver

threshold region, therefore noise margins are excellent.

FAST SCHOTTKY TTL

BTL offers low power consumption, low ground bounce, reduced EMI and

crosstalk, low capacitive loading, superior noise margin and short propaga-

tion delays. This results in a high bandwidth, reliable backplane.

FN SUFFIX

PLASTIC

CASE 775-02

The MC74F3893A has four TTL outputs (R ) on the receiver side with a

commonReceiveEnableinput(RE).Ithasfourdatainputs(D )whicharealso

TTL. ThesedatainputsareNANDedwiththeDataEnableinput(DE). Thefour

I/O pins (Bus side) are futurebus compatible, sink a minimum of 100 mA, and

are designed to drive heavily loaded backplanes with load impedances as low

as 10 ohms. All outputs are designed to be glitch-free during power up and

power down.

ORDERING INFORMATION

MC74FXXXXAFN

Plastic

• Quad Backplane Transceiver

• Drives Heavily Loaded Backplanes with Equivalent Load Impedances

Down to 10 ohms

• Futurebus Drivers Sink 100 mA

LOGIC SYMBOL

• Reduced Voltage Swing (1 Volt) Produces Less Noise and Reduces

Power Consumption

• High Speed Operation Enhances Performance of Backplane Buses

and Facilitates Incident Wave Switching

• Compatible with IEEE 896 and IEEE 1194.1 Futurebus Standards

• Built-In Precision Band-Gap (BG) Reference Provides Accurate Re-

ceiver Threshold and Improved Noise Immunity

• Glitch-Free Power Up/Power Down Operation On All Outputs

• Pin and Function Compatible with NSC DS3893A and Signetics

74F3893

I/O

18 17 15

• Separate Bus Ground Returns for Each Driver to Minimize Ground

Noise

• MOS and TTL Compatible High Impedance Inputs

PINOUT: 20-LEAD PLCC (TOP VIEW)

BUS

GND

I/O

BUS

GND

BUS

GND

LOGIC

GND

FAST AND LS TTL DATA

4-273

12 3 4 5

中文翻译

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与MC74F3893A相关器件

型号	品牌	获取价格	描述	数据表
MC74F3893AFN	MOTOROLA	获取价格	QUAD FUTUREBUS BACKPLANE TRANSCEIVER (3 STATE + OPEN COLLECTOR)
MC74F38D	MOTOROLA	获取价格	QUAD 2-INPUT NAND BUFFER, OPEN COLLECTOR
MC74F38DD	MOTOROLA	获取价格	F/FAST SERIES, QUAD 2-INPUT NAND GATE, PDSO14, PLASTIC, SOIC-14
MC74F38J	MOTOROLA	获取价格	QUAD 2-INPUT NAND BUFFER, OPEN COLLECTOR
MC74F38JD	MOTOROLA	获取价格	F/FAST SERIES, QUAD 2-INPUT NAND GATE, CDIP14, CERAMIC, DIP-14
MC74F38N	MOTOROLA	获取价格	QUAD 2-INPUT NAND BUFFER, OPEN COLLECTOR
MC74F38ND	MOTOROLA	获取价格	F/FAST SERIES, QUAD 2-INPUT NAND GATE, PDIP14, PLASTIC, DIP-14
MC74F398DW	MOTOROLA	获取价格	QUAD 2-PORT REGISTER
MC74F398DWD	MOTOROLA	获取价格	F/FAST SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO20, PLASTIC,
MC74F398DWDR2	MOTOROLA	获取价格	D Flip-Flop, F/FAST Series, 1-Func, Positive Edge Triggered, 4-Bit, Complementary Output,

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