100323 Datasheet, PDF (1/6 Pages) National Semiconductor (TI) – Low Power Hex Bus Driver

July 1988
Revised August 2000
100323
Low Power Hex Bus Driver
General Description
The 100323 is a monolithic device containing six bus driv-
ers capable of driving terminated lines with terminations as
low as 25Ω. To reduce crosstalk, each output has its own
respective 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 neg-
ative than normal ECL outputs (cut off state). This allows
an emitter-follower output transistor to turn OFF when the
termination supply is −2.0V and thus present a high imped-
ance to the data bus.
Features
s 50% power reduction of the 100123
s 2000V ESD protection
s −4.2V to −5.7V operating range
s Drives 25Ω load
Ordering Code:
Order Number Package Number
Package Description
100323PC
N24E
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.400 Wide
100323QC
V28A
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagrams
24-Pin DIP
Pin Descriptions
Pin Names
D₁–D₆
DE₁–DE₃
E
O₁–O₆
Description
Data Inputs
Dual Enable Inputs
Common Enable Input
Data Outputs
28-Pin PLCC
© 2000 Fairchild Semiconductor Corporation DS009877
www.fairchildsemi.com