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Fairchild Semiconductor - Low Power Octal ECL/TTL Bi-Directional Translator with Latch

Numéro de référence 100328
Description Low Power Octal ECL/TTL Bi-Directional Translator with Latch
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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100328 fiche technique
April 1989
Revised August 2000
100328
Low Power Octal ECL/TTL Bi-Directional Translator
with Latch
General Description
The 100328 is an octal latched bi-directional translator
designed to convert TTL logic levels to 100K ECL logic lev-
els and vice versa. The direction of this translation is deter-
mined by the DIR input. A LOW on the output enable input
(OE) holds the ECL outputs in a cut-off state and the TTL
outputs at a high impedance level. A HIGH on the latch
enable input (LE) latches the data at both inputs even
though only one output is enabled at the time. A LOW on
LE makes the 100328 transparent.
The cut-off state is designed to be more negative than a
normal ECL LOW level. This allows the output emitter-fol-
lowers to turn off when the termination supply is 2.0V, pre-
senting a high impedance to the data bus. This high
impedance reduces termination power and prevents loss of
low state noise margin when several loads share the bus.
The 100328 is designed with FASTTTL output buffers,
featuring optimal DC drive and capable of quickly charging
and discharging highly capacitive loads. All inputs have
50 kpull-down resistors.
Features
s Identical performance to the 100128 at 50% of the
supply current
s Bi-directional translation
s 2000V ESD protection
s Latched outputs
s FAST TTL outputs
s 3-STATE outputs
s Voltage compensated operating range = −4.2V to 5.7V
s Available to industrial grade temperature range
Ordering Code:
Order Number Package Number
Package Description
100328SC
M24B
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
100328PC
N24E
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.400 Wide
100328QC
V28A
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
100328QI
V28A
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
Industrial Temperature Range (40°C to +85°C)
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Pin Descriptions
Pin Names
Description
E0E7
T0T7
OE
ECL Data I/O
TTL Data I/O
Output Enable Input
LE Latch Enable Input
DIR Direction Control Input
All pins function at 100K ECL levels except for T0–T7.
FASTis a registered trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation DS010219
www.fairchildsemi.com

PagesPages 14
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