NOT RECOMMENDED FOR NEW DESIGNS SY10EL31 Micrel, Inc. SY100EL31 D FLIP-FLOP SY10EL31 SY100EL31 WITH SET AND RESET FEATURES DESCRIPTION 475ps propagation delay The SY10/100EL31 are D flip-flops with set and reset. The devices are functionally equivalent to the E131 2.8GHz toggle frequency 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 E131, the EL31 is ideally suited for those applications which require the ultimate in AC performance. Both the set and reset inputs are asynchronous, level triggered signals. 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. PIN NAMES Pin Function D Data Inputs Q Data Outputs S Set R Reset CLK Clock Input (1) TRUTH TABLE D S R CLK Q LL L Z L HL L Z H XH L X H XL H X L X H H X Undef NOTE: 1. Z = LOW-to-HIGH transition. Rev.: G Amendment: /0 M9999-120705 1 Issue Date: December 2005 hbwhelp micrel.com or (408) 955-1690SY10EL31 Micrel, Inc. SY100EL31 PACKAGE/ORDERING INFORMATION (1) Ordering Information Package Operating Package Lead Part Number Type Range Marking Finish SV1 8 CC S SY10EL31ZC Z8-1 Commercial HEL31 Sn-Pb D 2 D 7 Q (2) SY10EL31ZCTR Z8-1 Commercial HEL31 Sn-Pb Flip-Flop SY100EL31ZC Z8-1 Commercial XEL31 Sn-Pb CLK 3 6 Q (2) R SY100EL31ZCTR Z8-1 Commercial XEL31 Sn-Pb R45 VEE SY10EL31ZI Z8-1 Industrial HEL31 Sn-Pb (2) SY10EL31ZITR Z8-1 Industrial HEL31 Sn-Pb SY100EL31ZI Z8-1 Industrial XEL31 Sn-Pb (2) SY100EL31ZITR Z8-1 Industrial XEL31 Sn-Pb 8-Pin SOIC (Z8-1) (3) SY10EL31ZG Z8-1 Industrial HEL31 with Pb-Free Pb-Free bar-line indicator NiPdAu (2, 3) SY10EL31ZGTR Z8-1 Industrial HEL31 with Pb-Free Pb-Free bar-line indicator NiPdAu (3) SY100EL31ZG Z8-1 Industrial XEL31 with Pb-Free Pb-Free bar-line indicator NiPdAu (2, 3) SY100EL31ZGTR Z8-1 Industrial XEL31 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. M9999-120705 2 hbwhelp micrel.com or (408) 955-1690