Part Number	MC100H644 Datasheet
Manufacturer	onsemi
Overview	PIN GT VT VE GE DE, DE VBB DT Qn, Qn SEL R FUNCTION TTL Ground (0 V) TTL VCC (+5.0 V) ECL VCC (+5.0 V) ECL Ground (0 V) ECL Signal Input (positive ECL) VBB Reference Output TTL Signal Input Signal Out. te MPU clocks as required. A typical 50 MHz processor application would use an input clock running at 100 MHz, thus obtaining output clocks at 50 MHz and 25 MHz (see Logic Symbol). The 10H version is compatible with MECL™ 10H ECL logic levels, while the 100H version is compatible with 100K levels (r.