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IDT74FCT543DTPYB Datasheet(PDF) 1 Page - Integrated Device Technology

Part # IDT74FCT543DTPYB
Description  FAST CMOS OCTAL LATCHED TRANSCEIVER
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT74FCT543DTPYB Datasheet(HTML) 1 Page - Integrated Device Technology

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IDT54/74FCT543T/AT/CT/DT
IDT54/74FCT2543T/AT/CT
Integrated Device Technology, Inc.
FAST CMOS
OCTAL LATCHED
TRANSCEIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
JANUARY 1995
©1995 Integrated Device Technology, Inc.
6.17
DSC-4203/5
DESCRIPTION:
The FCT543T/FCT2543T is a non-inverting octal trans-
ceiver built using an advanced dual metal CMOS technology.
This device contains two sets of eight D-type latches with
separate input and output controls for each set. For data flow
from A to B, for example, the A-to-B Enable (
CEAB) input must
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.
The FCT2543T has balanced output drive with current
limiting resistors. This offers low ground bounce, minimal
undershoot and controlled output fall times-reducing the need
for external series terminating resistors. FCT2xxxT parts are
plug-in replacements for FCTxxxT parts.
1
FEATURES:
• Common features:
Low input and output leakage
≤1µA (max.)
CMOS power levels
True TTL input and output compatibility
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
Meets or exceeds JEDEC standard 18 specifications
Product available in Radiation Tolerant and Radiation
Enhanced versions
Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
Available in DIP, SOIC, SSOP, QSOP, CERPACK
and LCC packages
• Features for FCT543T:
Std., A, C and D speed grades
High drive outputs (-15mA IOH, 64mA IOL)
Power off disable outputs permit “live insertion”
• Features for FCT2543T:
Std., A, and C speed grades
Resistor outputs
(-15mA IOH, 12mA IOL Com.)
(-12mA IOH, 12mA IOL Mil.)
Reduced system switching noise
2613 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FUNCTIONAL BLOCK DIAGRAM
A1
Q
OEBA
A2
A3
A4
A5
A6
A7
B1
B2
B3
B4
B5
B6
B7
CEBA
LEBA
OEAB
CEAB
LEAB
DETAIL A x 7
D
LE
Q
D
LE
DETAIL A
A0
B0


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