100329

100329 Low Power Octal ECL/TTL Bidirectional Translator with Register

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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 levels and vice versa. The direction of the translation is determined 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-followers to turn off when the termination supply is -2.0V, presenting 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 TTL output buffers, featuring optimal DC drive and capable of quickly charging and discharging highly capacitive loads. All inputs have 50 k 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 -4.2V to -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 (-40 C to 85 C)

Devices also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering code.

Connection Diagrams
24-Pin DIP 28-Pin PLCC

FAST is a registered trademark of Fairchild Semiconductor Corporation.

2000 Fairchild Semiconductor Corporation

DS010583

www.fairchildsemi.com