SY10H641L

Micrel, Inc. 3.3V SINGLE SUPPLY 1:9 PECL-TO-TTL Precision Edge® Precision SESYdY110g00HHe66®4411LL SY10H641L SY100H641L FEATURES s 3.3V power supply s PECL-to-TTL version of popular ECLinPS E111 s Guaranteed low skew specification s Latched input s Differential ECL internal design s VBB output for single-ended operation s Reset/enable s Extra TTL and ECL power/ground pins s Choice of ECL compatibility: MECL 10KH (10Hxxx) or 100K (100Hxxx) s Available in 28-pin PLCC package BLOCK DIAGRAM TTL Outputs Q0 Precision Edge® DESCRIPTION The SY10/100H641L are single supply, low skew translating 1:9 clock drivers. Devices in the Micrel H600 translator series utilize the 28-lead PLCC for optimal power pinning, signal flow-through and electrical performance. The devices feature a 24mA 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 10H version is compatible with MECL 10KH ECL logic levels. The 100H version is compatible with 100K levels. PIN NAMES PECL Input D DQ D VBB LEN EN Q1 Pin Function GT TTL Ground (0V) VT TTL VCC (+3.0V) Q2 VE ECL VCC (+3.0V) GE ECL Ground (0V) Q3 D, /D Signal Input (PECL) VBB VBB Reference Output (PECL) Q0 – Q8 Signal Outputs (TTL) Q4 /EN Enable Input (PECL) LEN Latch Enable Input (PECL) Q5 Q6 Q7 Q8 Precision ...