NOT RECOMMENDED FOR NEW DESIGNS SY10EL51 Micrel, Inc. SY100EL51 DIFFERENTIAL SY10EL51 CLOCK D FLIP-FLOP SY100EL51 DESCRIPTION FEATURES 475ps propagation delay The SY10/100EL51 are differential clock D flip-flops with reset. These devices are functionally similar to the 2.8GHz toggle frequency E151 devices, with higher performance capabilities. With Internal 75K input pull-down resistors propagation delays and output transition times Available in 8-pin SOIC package significantly faster than the E151, the EL51 is ideally suited for those applications which require the ultimate in AC performance. The reset input is an asynchronous, level triggered signal. Data enters the master portion of the flip-flop when the clock is LOW and is transferred to the slave, and thus the outputs, upon a positive transition of the clock. The differential clock inputs of the EL51 allow the device to be used as a negative edge triggered flip-flop. The differential input employs clamp circuitry to maintain stability under open input (pulled down to VEE) conditions. (1) PIN NAMES TRUTH TABLE Pin Function D R CLK Q R Reset Input LL Z L D Data Input HL Z H CLK Clock Input XH X L NOTE: Q Data Output 1. Z = LOW-to-HIGH transition. Rev.: G Amendment: /0 M9999-121205 1 Issue Date: December 2005 1 hbwhelp micrel.com or (408) 955-1690SY10EL51 Micrel, Inc. SY100EL51 PACKAGE/ORDERING INFORMATION (1) Ordering Information Package Operating Package Lead Part Number Type Range Marking Finish 8 RV1 CC SY10EL51ZC Z8-1 Commercial HEL51 Sn-Pb R (2) SY10EL51ZCTR Z8-1 Commercial HEL51 Sn-Pb 7 D 2 D Q SY100EL51ZC Z8-1 Commercial XEL51 Sn-Pb Flip-Flop 6 CLK 3 Q (2) SY100EL51ZCTR Z8-1 Commercial XEL51 Sn-Pb 5 CLK 4 VEE SY10EL51ZI Z8-1 Industrial HEL51 Sn-Pb (2) SY10EL51ZITR Z8-1 Industrial HEL51 Sn-Pb SY100EL51ZI Z8-1 Industrial XEL51 Sn-Pb 8-Pin SOIC (Z8-1) (2) SY100EL51ZITR Z8-1 Industrial XEL51 Sn-Pb (3) SY10EL51ZG Z8-1 Industrial HEL51 with Pb-Free Pb-Free bar-line indicator NiPdAu (2, 3) SY10EL51ZGTR Z8-1 Industrial HEL51 with Pb-Free Pb-Free bar-line indicator NiPdAu (3) SY100EL51ZG Z8-1 Industrial XEL51 with Pb-Free Pb-Free bar-line indicator NiPdAu (2, 3) SY100EL51ZGTR Z8-1 Industrial XEL51 with Pb-Free Pb-Free bar-line indicator NiPdAu Notes: 1. Contact factory for die availability. Dice are guaranteed at T = 25C, DC Electricals only. A 2. Tape and Reel. 3. Pb-Free package is recommended for new designs. M9999-121205 2 hbwhelp micrel.com or (408) 955-1690