DS7834 Datasheet, PDF (1/6 Pages) National Semiconductor (TI) – Quad TRI-STATE Bus Transceivers

February 1996
DS7834 DS8834 Quad TRI-STATE
Bus Transceivers
General Description
This family of TRI-STATE bus transceivers offers extreme
versatility in bus organized data transmission systems The
data bus may be unterminated or terminated DC or AC at
one or both ends Drivers in the third (high impedance) state
load the data bus with a negligible leakage current The
receiver input current is low allowing at least 100 driver re-
ceiver pairs to utilize a single bus The bus loading is un-
changed when V_CC e 0V The receiver incorporates hyster-
esis to provide greater noise immunity Both devices utilize a
high current TRI-STATE output driver The DS7834
DS8834 employs TTL outputs on the receiver
The DS7834 DS8834 are inverting quad transceivers with
two common inverter driver disable controls
Features
Y _{Receiver hysteresis}
400 mV typ
Y _{Receiver noise immunity}
1 4V typ
Y _{Bus terminal current for}
normal V_CC or V_CC e 0V
Y _Receivers
Sink
80 mA max
16 mA at 0 4V max
Source
2 0 mA (Mil) at 2 4V min
5 2 mA (Com) at 2 4V min
Y _Drivers
Sink
50 mA at 0 5V max
Source
32 mA at 0 4V max
10 4 mA (Com) at 2 4V min
5 2 mA (Mil) at 2 4V min
Y _{Drivers have TRI-STATE outputs}
Y _{Receivers have TRI-STATE outputs}
Y _{Capable of driving 100X DC-terminated Buses}
Y _{Compatible with Series 54 74}
Connection Diagram
Dual-In-Line Package
Top View
Order Number DS7834J or DS8834N
See NS Package Number J16A or N16A
TL F 5809 – 1
TRI-STATE is a registered trademark of National Semiconductor Corp
C1996 National Semiconductor Corporation TL F 5809
RRD-B30M36 Printed in U S A
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