dp8307a National Semiconductor Corporation, dp8307a Datasheet

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dp8307a

Manufacturer Part Number
dp8307a
Description
8-bit Tri-state-r Bidirectional Transceiver Inverting
Manufacturer
National Semiconductor Corporation
Datasheet

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C 1996 National Semiconductor Corporation
DP8307A 8-Bit TRI-STATE
Bidirectional Transceiver (Inverting)
General Description
The DP8307A is a high speed Schottky 8-bit TRI-STATE
bidirectional transceiver designed to provide bidirectional
drive for bus oriented microprocessor and digital communi-
cations 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
allow compatibility with MOS CMOS and other technolo-
gies that have a higher threshold and less drive capabilities
In addition it features glitch-free power up down on the B
port preventing erroneous glitches on the system bus in
power up or down
DP8303A and DP7304B DP8304B are featured with Trans-
mit Receive (T R) and Chip Disable (CD) inputs to simplify
control logic For greater design flexibility DP8307A and
DP7308 DP8308 is featured with Transmit (T) and
Receive (R) control inputs
Logic and Connection Diagrams
Logic Table
TRI-STATE is a registered trademark of National Semiconductor Corporation
This is not an intended logic condition and may cause oscillations
Transmit
Control Inputs
1
0
1
0
Receive
0
1
1
0
TL F 8794
TRI-STATE
A Port
Resulting Conditions
OUT
IN
Both Active
TRI-STATE
B Port
OUT
TL F 8794 – 1
OH
IN
) level
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 votlage 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
RRD-B30M36 Printed in U S A
See NS Package Number N20A
Order Number DP8307AN
Dual-In-Line Package
Top View
http
February 1996
www national com
TL F 8794 – 2

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dp8307a Summary of contents

Page 1

... DP8307A 8-Bit TRI-STATE Bidirectional Transceiver (Inverting) General Description The DP8307A is a high speed Schottky 8-bit TRI-STATE bidirectional transceiver designed to provide bidirectional drive for bus oriented microprocessor and digital communi- cations systems It is capable of sinking the A ports and the B ports (bus ports) PNP inputs for ...

Page 2

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Input Voltage Output Voltage Maximum Power Dissipation Cavity Package Molded Package Derate cavity ...

Page 3

DC Electrical Characteristics Symbol Parameter CONTROL INPUTS Logical ‘‘1’’ Input Voltage IH V Logical ‘‘0’’ Input Voltage IL I Logical ‘‘1’’ Input Current Maximum Input Current Logical ‘‘0’’ Input Current V ...

Page 4

Switching Time Waveforms and AC Test Circuits Note C1 includes test fixture capacitance FIGURE A Propagation Delay from A Port to B Port or from B Port to A Port Note C4 includes test fixture capacitance Port input is in ...

Page 5

5 http www national com ...

Page 6

... National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Molded Dual-In-Line Package (N) Order Number DP8307AN NS Package Number N20A 2 A critical component is any component of a life ...

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