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DP8308 Datasheet

  • DP8308

  • 8-Bit TRI-STATE Bidirectional Transceiver (Non-Inverting)

  • 122.31KB

  • 6頁

  • NSC

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DP8308 8-Bit TRI-STATE Bidirectional Transceiver (Non-Inverting)
February 1996
DP8308 8-Bit TRI-STATE
Bidirectional Transceiver (Non-Inverting)
General Description
The DP8308 is a high speed Schottky 8-bit TRI-STATE bidi-
rectional transceiver designed to provide bidirectional drive
for bus oriented microprocessor and digital communications
systems It is capable of sinking 16 mA on the A ports and
48 mA on the B ports (bus ports) PNP inputs for low input
current and an increased output high (V
OH
) level allow com-
patibility with MOS CMOS and other technologies that
have a higher threshold and less drive capabilities In addi-
tion it features glitch-free power up down on the B port
preventing erroneous glitches on the system bus in power
up or down
DP8308 is featured with Transmit (T) and Receive (R)
control inputs
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
8-bit bidirectional data flow reduces system package
count
Bidirectional TRI-STATE inputs outputs interface with
bus oriented systems
PNP inputs reduce input loading
Output high voltage interfaces with TTL MOS and
CMOS
48 mA 300 pF bus drive capability
Pinouts simplify system interconnections
Independent T and R controls for versatility
Compact 20-pin dual-in-line package
Bus port glitch free power up down
Logic and Connection Diagrams
Dual-In-Line Package
TL F 8795 鈥?1
Logic Table
Control Inputs
Transmit
1
0
1
0
Receive
0
1
1
0
Resulting Conditions
A Port
OUT
IN
TRI-STATE
B Port
IN
OUT
TRI-STATE
TL F 8795 鈥?2
Top View
Order Number DP8308N
See NS Package Number N20A
Both Active
This is not an intended logic condition and may cause oscillations
TRI-STATE is a registered trademark of National Semiconductor Corp
C
1996 National Semiconductor Corporation
TL F 8795
RRD-B30M36 Printed in U S A
http
www national com

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