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MC10H640 - PECL-TTL CLOCK DRIVER

Datasheet Summary

Description

68040 and similar microprocessors.

It is guaranteed to meet the clock specifications required by the 68030 and 68040 in terms of part-to-part skew, within-part skew and also duty cycle skew.

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Datasheet preview – MC10H640

Datasheet Details

Part number MC10H640
Manufacturer ON Semiconductor
File Size 139.80 KB
Description PECL-TTL CLOCK DRIVER
Datasheet download datasheet MC10H640 Datasheet
Additional preview pages of the MC10H640 datasheet.

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Full PDF Text Transcription

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MC10H640 68030/040 PECL to TTL Clock Driver Description The MC10H640 generates the necessary clocks for the 68030, 68040 and similar microprocessors. It is guaranteed to meet the clock specifications required by the 68030 and 68040 in terms of part-to-part skew, within-part skew and also duty cycle skew. The user has a choice of using either TTL or PECL (ECL referenced to +5.0 V) for the input clock. TTL clocks are typically used in present MPU systems. However, as clock speeds increase to 50 MHz and beyond, the inherent superiority of ECL (particularly differential ECL) as a means of clock signal distribution becomes increasingly evident. The H640 also uses differential PECL internally to achieve its superior skew characteristic.
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