NOT RECOMMENDED FOR NEW DESIGNS Precison Edge SY10ELT21 DIFFERENTIAL Precision Edge Micrel, Inc. SY100ELT21 SY10ELT21 PECL-to-TTL SY100ELT21 TRANSLATOR FEATURES 2.5ns typical propagation delay Precision Edge Low power Differential PECL inputs 24mA TTL outputs DESCRIPTION Flow-through pinouts The SY10/100ELT21 are single differential PECL-to- Available in 8-pin SOIC package TTL translators. Because PECL (Positive ECL) levels are used, only +5V and ground are required. The small outline 8-lead SOIC package and low skew single gate design make the ELT21 ideal for applications that require the translation of a clock or data signal where minimal space, low power, and low cost are critical. The V output allow differential single-ended, or AC- BB coupled interface to the device. If used, the V output BB should be bypassed to V with a 0.01F capacitor. CC The ELT21 is available in both ECL standards: the 10ELT is compatible with positive ECL 10H logic levels, while the 100ELT is compatible with positive ECL 100K logic levels. PIN NAMES Pin Function Q TTL Output D, /D Differential PECL Inputs V +5.0V Supply CC V Reference Output BB GND Ground Precision Edge is a registered trademark of Micrel, Inc. Rev.: C Amendment: /0 M9999-031506 1 Issue Date: March 2006 hbwhelp micrel.com or (408) 955-1690 Precision Edge SY10ELT21 Micrel, Inc. SY100ELT21 PACKAGE/ORDERING INFORMATION (1) Ordering Information Package Operating Package Lead Part Number Type Range Marking Finish NC 1 8V CC TTL SY10ELT21ZC Z8-1 Commercial HEL21 Sn-Pb D 2 7 Q PECL (2) SY10ELT21ZCTR Z8-1 Commercial HEL21 Sn-Pb D 3 6 NC SY100ELT21ZC Z8-1 Commercial XEL21 Sn-Pb V 4 5 GND BB (2) SY100ELT21ZCTR Z8-1 Commercial XEL21 Sn-Pb SY10ELT21ZI Z8-1 Industrial HEL21 Sn-Pb 8-Pin SOIC (Z8-1) (2) SY10ELT21ZITR Z8-1 Industrial HEL21 Sn-Pb SY100ELT21ZI Z8-1 Industrial XEL21 Sn-Pb (2) SY100ELT21ZITR Z8-1 Industrial XEL21 Sn-Pb (3) SY10ELT21ZG Z8-1 Industrial HEL21 with Pb-Free Pb-Free bar-line indicator NiPdAu (2, 3) SY10ELT21ZGTR Z8-1 Industrial HEL21 with Pb-Free Pb-Free bar-line indicator NiPdAu (3) SY100ELT21ZG Z8-1 Industrial XEL21 with Pb-Free Pb-Free bar-line indicator NiPdAu ( (2, 3) SY100ELT21ZG TR Z8-1 Industrial XEL21 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. M9999-031506 2 hbwhelp micrel.com or (408) 955-1690