100323 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – Low Power Hex Bus Driver

August 1998
100323
Low Power Hex Bus Driver
General Description
The 100323 is a monolithic device containing six bus drivers
capable of driving terminated lines with terminations as low
as 25Ω. To reduce crosstalk, each output has its own re-
spective ground connection. Transition times were designed
to be longer than on other F100K devices. The driver itself
performs the positive logic AND of a data input (D₁–D₆) and
the OR of two select inputs (E and either DE₁, DE₂, or DE₃).
Enabling of data is possible in multiples of two, i.e., 2, 4 or all
6 paths. All inputs have 50 kΩ pull-down resistors.
The output voltage LOW level is designed to be more nega-
tive than normal ECL outputs (cut off state). This allows an
emitter-follower output transistor to turn off when the termi-
nation supply is −2.0V and thus present a high impedance to
the data bus.
Features
n 50% power reduction of the 100123
n 2000V ESD protection
n −4.2V to −5.7V operating range
n Drives 25Ω load
Logic Symbol
Pin Names
D₁– D₆
DE₁–DE₃
E
O₁– O₆
Description
Data Inputs
Dual Enable Inputs
Common Enable Input
Data Outputs
DS100312-7
© 1998 National Semiconductor Corporation DS100312
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