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  1 sy100elt25 micrel, inc. m9999-031506 hbwhelp@micrel.com or (408) 955-1690 description  2.6ns typical propagation delay  differential ecl inputs  24ma ttl outputs  flow-through pinouts  available in 8-pin soic package the sy100elt25 is a differential ecl-to-ttl translator. because ecl levels are used, a +5v, ?.2v (or ?.5v) and ground are required. the small outline 8- lead soic package and the single gate of the elt25 makes it ideal for those applications where performance, space and low power are at a premium. the v bb output allows the elt25 to also be used in a single-ended input mode. in this mode the v bb output is tied to the d input for a non-inverting buffer or the d input for an inverting buffer. if used the v bb pin should be bypassed to ground via a 0.01 f capacitor. features differential ecl-to-ttl translator pin names pin function q ttl output d differential ecl inputs v cc positive supply v ee negative supply v bb reference output gnd ground sy100elt25 rev.: c amendment: /0 issue date: march 2006
2 sy100elt25 micrel, inc. m9999-031506 hbwhelp@micrel.com or (408) 955-1690 package/ordering information ordering information (1) package operating package lead part number type range marking finish sy100elt25zc z8-1 commercial xel25 sn-pb sy100elt25zctr (2) z8-1 commercial xel25 sn-pb SY100ELT25ZI z8-1 industrial xel25 sn-pb SY100ELT25ZItr (2) z8-1 industrial xel25 sn-pb sy100elt25zg (3) z8-1 industrial xel25 with pb-free pb-free bar-line indicator nipdau sy100elt25zgtr (2, 3) z8-1 industrial xel25 with with pb-free pb-free bar-line indicator nipdau notes: 1. contact factory for die availability. dice are guaranteed at t a = 25 c, dc electricals only. 2. tape and reel. 3. pb-free package is recommended for new designs. 8-pin soic (z8-1) 1 v ee v cc q gnd nc 2 3 4 5 6 7 8 d d v bb
3 sy100elt25 micrel, inc. m9999-031506 hbwhelp@micrel.com or (408) 955-1690 t a = ?0 ct a = 0 ct a = +25 ct a = +85 c symbol parameter min. max. min. max. min. max. min. max. unit condition t plh propagation delay 1.7 3.6 1.7 3.6 1.7 3.6 1.7 3.6 ns c l = 20pf t phl d to output q f max maximum frequency 150 150 150 150 mhz c l = 20pf t r output rise/fall time 1.5 1.5 1.5 1.5 ns c l = 20pf t f (1.0v to 2.0v) symbol paramter value unit v cc power supply voltage 0.5 to +7.0 v v in ecl input voltage v ee to gnd+0.5 v v out voltage applied to 0.5 to +5.5 v output at high state i out current applied to twice the ma output at low state rated i ol t lead lead temperature +260 c (soldering, 20sec.) t store storage temperature 65 to +150 c t a operating temperature 40 to +85 c note: 1. permanent device damage may occur if absolute maximum ratings are exceeded. this is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. exposure to absolute maximum ratlng conditions for extended periods may affect device reliability. t a = ?0 ct a = 0 ct a = +25 ct a = +85 c symbol parameter min. max. min. max. min. max. min. max. unit condition i cc power supply current 14 14 9 14 14 ma i ee power supply current 14 14 5.5 14 14 ma absolute maximum ratings (1) truth table dd q lh l hl h open open l dc electrical characteristics v cc = 4.5v to 5.5v; v ee = 4.2v to 5.5v ac electrical characteristics v cc = 4.5v to 5.5v; v ee = 4.2v to 5.5v t a = ?0 ct a = 0 ct a = +25 ct a = +85 c symbol parameter min. max. min. max. min. max. min. max. unit condition v oh output high voltage 2.4 2.4 2.4 2.4 vi oh = 3.0ma v ol output low voltage 0.5 0.5 0.5 0.5 v i ol = 24ma i os output short circuit current 60 200 60 200 60 200 60 200 ma v out = 0v ttl dc electrical characteristics v cc = 4.5v to 5.5v; v ee = 4.2v to 5.5v
4 sy100elt25 micrel, inc. m9999-031506 hbwhelp@micrel.com or (408) 955-1690 t a = ?0 ct a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. min. typ. max. unit i ih input high current 150 150 150 150 a i il input high current 0.5 0.5 0.5 0.5 a v cmr common mode range v ee +2.2 gnd v ee +2.2 gnd v ee +2.2 gnd v ee +2.2 gnd v v pp minimum peak-to-peak 200 200 200 200 mv input (1) v ih input high voltage 1165 880 1165 880 1165 880 1165 880 mv v il input low voltage 1810 1475 1810 1475 1810 1475 1810 1475 mv v bb reference output 1.38 1.26 1.38 1.26 1.38 1.26 1.38 1.26 mv v cc = 4.5v to 5.5v; v ee = 4.2v to 5.5v note: 1. 200mv input guarantees full logic at output. ecl dc electrical characteristics ttl switching circuit pulse generator in out v ee v cc device under test ch a oscilloscope ch b 50 ? coax 450 ? use 0.1f capacitors for decoupling use oscilloscope internal 50 ? load for termination 50 ? coax 50 ? coax
5 sy100elt25 micrel, inc. m9999-031506 hbwhelp@micrel.com or (408) 955-1690 ecl/ttl propagation delay ?single ended ecl/ttl waveforms: rise and fall times v in v out 50% 1.5v t plh t phl v out t r t f 2.0v 1v
6 sy100elt25 micrel, inc. m9999-031506 hbwhelp@micrel.com or (408) 955-1690 8-pin soic .150" wide (z8-1) rev. 03 micrel, inc. 2180 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 web http://www.micrel.com the information furnished by micrel in this datasheet is believed to be accurate and reliable. however, no responsibility is as sumed by micrel for its use. micrel reserves the right to change circuitry and specifications at any time without notification to the customer. micrel products are not designed or authorized for use as components in life support appliances, devices or systems where malfu nction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intend ed for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant inj ury to the user. a purchaser s use or sale of micrel products for use in life support appliances, devices or systems is at purchaser s own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ? 2006 micrel, incorporated.


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