100329 Low Power Octal ECL/TTL Bidirectional Translator with Register
August 1989
Revised August 2000
100329
Low Power Octal ECL/TTL Bidirectional Translator
with Register
General Description
The 100329 is an octal registered bidirectional translator
designed to convert TTL logic levels to 100K ECL logic lev-
els and vice versa. The direction of the 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. The outputs change
synchronously with the rising edge of the clock input (CP)
even though only one output is enabled at the time.
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
鈭?/div>
2.0V, pre-
senting a high impedance to the data bus. This high
impedance reduces the termination power and prevents
loss of low state noise margin when several loads share
the bus.
The 100329 is designed with FAST
錚?/div>
TTL output buffers,
featuring optimal DC drive and capable of quickly charging
and discharging highly capacitive loads. All inputs have
50 k
鈩?/div>
pull-down resistors.
Features
s
Bidirectional translation
s
ECL high impedance outputs
s
Registered outputs
s
FAST TTL outputs
s
3-STATE outputs
s
Voltage compensated operating range
= 鈭?/div>
4.2V to
鈭?/div>
5.7V
s
High drive IOS
Ordering Code:
Order Number
100329PC
100329QC
100329QI
Package Number
N24E
V28A
V28A
Package Description
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.400 Wide
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
Industrial Temperature Range (
鈭?/div>
40
擄
C to
+
85
擄
C)
Devices also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Connection Diagrams
24-Pin DIP
28-Pin PLCC
FAST錚?is a registered trademark of Fairchild Semiconductor Corporation.
漏 2000 Fairchild Semiconductor Corporation
DS010583
www.fairchildsemi.com
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