IDT74FCT543TQG

更新时间： 2024-10-03 13:08:43

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
7页	75K
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IDT74FCT543TQG 数据手册

IDT54/74FCT543

IDT54/74FCT543A

IDT54/74FCT543C

FAST CMOS

OCTAL LATCHED

TRANSCEIVER

Integrated Device Technology, Inc.

FEATURES:

DESCRIPTION:

• IDT54/74FCT543 equivalent to FAST speed

• IDT54/74FCT543A 25% faster than FAST

• IDT54/74FCT543C 40% faster than FAST

• Equivalent to FAST output drive over full temperature

and voltage supply extremes

• IOL = 64mA (commercial), 48mA (military)

• Separate controls for data flow in each direction

• Back-to-back latches for storage

• CMOS power levels (1mW typ. static)

• Substantially lower input current levels than FAST

(5µA max.)

• TTL input and output level compatible

• CMOS output level compatible

The IDT54/74FCT543/A/C is a non-inverting octal trans-

ceiver built using an advanced dual metal CMOS technology.

These devices contain two sets of eight D-type latches with

separate input and output controls for each set. For data flow

fromAtoB, forexample, theA-to-BEnable(CEAB)inputmust

be LOW in order to enter data from A0–A7 or to take data from

B0–B7, as indicated in the Function Table. With CEAB LOW,

a LOW signal on the A-to-B Latch Enable (LEAB) input makes

the A-to-B latches transparent; a subsequent LOW-to-HIGH

transition of the LEAB signal puts the A latches in the storage

mode and their outputs no longer change with the A inputs.

With CEAB and OEAB both LOW, the 3-state B output buffers

are active and reflect the data present at the output of the A

latches. Control of data from B to A is similar, but uses the

CEBA, LEBA and OEBA inputs.

• Product available in Radiation Tolerant and Radiation

Enhanced versions

• Military product compliant to MIL-STD-883, Class B

FUNCTIONAL BLOCK DIAGRAMS

DETAIL A

DETAIL A x 7

OEBA

OEAB

CEAB

CEBA

LEBA

LEAB

2614 drw 01

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

FAST is a registered trademark of National Semiconductor Co.

MILITARY AND COMMERCIAL TEMPERATURE RANGES

MAY 1992

1992 Integrated Device Technology, Inc.

7.17

DSC-4602/3

12 3 4 5 6 7

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