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Numéro de référence | IDT74FCT543 | ||
Description | FAST CMOS OCTAL LATCHED TRANSCEIVER | ||
Fabricant | Integrated Device Technology | ||
Logo | |||
1 Page
IDT54/74FCT543/A/C
FAST CMOS OCTAL LATCHED TRANSCEIVER
FAST CMOS
OCTAL LATCHED
TRANSCEIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
IDT54/74FCT543/A/C
FEATURES:
− 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 (5µ A max.)
− TTL input and output level compatible
− CMOS output level compatible
− Military product compliant to MIL-STD-883, Class B
− Available in the following packages:
• Commercial: SOIC
• Military: CERDIP, LCC, CERPACK
DESCRIPTION:
The FCT543 is a non-inverting octal transceiver built using an ad-
vanced 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 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.
FUNCTIONAL BLOCK DIAGRAM
A0 3
DQ
LE
DETAIL A
QD
LE
22 B0
A1 4
A2 5
A3 6
A4 7
A5 8
A6 9
A7 10
2
OEBA
CEBA
LEBA
23
1
DETAIL A x 7
MILITARY AND COMMERCIAL TEMPERATURE RANGES
c 1999 Integrated Device Technology, Inc.
1
21 B1
20 B2
19 B3
18 B4
17 B5
16 B6
15 B7
13
OEAB
11
CEAB
14 LEAB
JUNE 2000
DSC-4602/3
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Pages | Pages 7 | ||
Télécharger | [ IDT74FCT543 ] |
No | Description détaillée | Fabricant |
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