Datasheet Microchip SY100HA643 — Даташит

NOT RECOMMENDED FOR NEW DESIGNS
Precision EdgeВ® PrecisionSY100HA643
EdgeВ®
SY100HA643 DUAL SUPPLY
OCTAL ECL-TO-TTL Micrel, Inc. FEATURES
в–  ECL/TTL version of popular ECLinPSв„ў E111
в–  400ps within device skew Precision EdgeВ® в–  800ps part-to-part skew
в–  Latch DESCRIPTION в–  Differential internal design
в–  VBB output The SY100HA643 is an enhanced dual supply, low skew
translating 1:8 clock driver. Devices in the Micrel H600
translators series utilize the 28-lead PLCC for optimal power
pinning, signal flow through and electrical performance. The
dual-supply HA643 is similar to the H641, which is a singlesupply 1:9 version of the same function, with higher
performance than the H643 versions.
The device features a 48mA TTL output stage, with AC
performance specified into a 20pF load capacitance. A
Latch is provided on-chip. When LEN is LOW (or left open,
in which case it is pulled LOW by the internal pulldowns)
the latch is transparent. A HIGH on the enable pin (EN)
forces all outputs LOW.
The 100HA643 is compatible with 100K ECL logic levels. в–  Dual supply
в–  Reset/Enable
в–  Multiple TTL and ECL power/ground pins …