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PDF 54FCT245 Data sheet ( Hoja de datos )
| Número de pieza | 54FCT245 | |
| Descripción | Octal Bidirectional Transceiver | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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August 1998
54FCT245
Octal Bidirectional Transceiver with TRI-STATE® Outputs
General Description
The ’FCT245 contains eight non-inverting bidirectional buff-
ers with TRI-STATE outputs and is intended for bus-oriented
applications. Current sinking capability is 48 mA on both the
A and B ports. The Transmit/Receive (T/R) input determines
the direction of data flow through the bidirectional trans-
ceiver. Transmit (active HIGH) enables data from A ports to B
ports; Receive (active LOW) enables data from B ports to A
ports. The Output Enable input, when HIGH, disables both A
and B ports by placing them in a High Z condition.
Features
n TTL input and output level compatible
n A and B output sink capability of 48 mA, source
capability of 12 mA
n CMOS power consumption
n Standard Microcircuit Drawing (SMD) 5962-8762901
Ordering Code:
Military
54FCT245DMQB
54FCT245FMQB
54FCT245LMQB
Logic Symbol
Package
Number
J20A
W20A
E20A
Package Description
20-Lead Ceramic Dual-In-Line
20-Lead Cerpak
20-Lead Ceramic Leadless Chip Carrier, Type C
DS100950-1
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100950
www.national.com
Free Datasheet http://www.Datasheet4U.com
1 page  
AC Waveforms
DS100950-8
FIGURE 4. Propagation Delay Waveforms
for Inverting and Non-Inverting Functions
DS100950-10
FIGURE 5. TRI-STATE Output HIGH
and LOW Enable and Disable Times
5 www.national.com
Free Datasheet http://www.Datasheet4U.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 54FCT245.PDF ] | |
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