the SY100HA643 is an enhanced dual supply, low skew translating 1:8 clock driver. devices in the micrel-synergy h600 translators series utilize the 28-lead plcc for optimal power pinning, signal flow through and electrical performance. the dual-supply ha643 is similar to the h641, which is a single-supply 1:9 version of the same function, with higher performance than the h643 versions. the device features a 48ma 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 100ha643 is compatible with 100k ecl logic levels. description features ecl/ttl version of popular eclinps e111 400ps within device skew 800ps part-to-part skew latch differential internal design v bb output dual supply reset/enable multiple ttl and ecl power/ground pins fully compatible with motorola mc100h643 higher performance than h643 versions industrial temperature availability available in 28-pin plcc package dual supply octal ecl-to-ttl rev.: g amendment: /1 issue date: august, 1998 clockworks SY100HA643 final block diagram pin configuration pin function ognd ttl output ground (0v) ovtttl output v cc (+5.0v) ignd internal ttl gnd (0v) ivt internal ttl v cc (+5.0v) v ee ecl v ee (-5.2/-4.5v) v cce ecl ground (0v) d, d signal input (ecl) v bb v bb reference output q0 - q7 signal outputs (ttl) en enable input (ecl) len latch enable input (ecl) pin names d v bb q 0 q 1 q 2 q 3 q 4 q 5 q 6 q 7 d len en d q ttl outputs 18 17 16 15 14 13 12 567891011 SY100HA643 top view plcc q 5 ovt 2 q 6 ognd 4 q 4 ognd 3 q 7 q 3 ognd 2 q 2 ovt 1 q 1 ognd 1 q 0 1gnd 1 v ee v ee en d ivt 1 v ee v cce v cce len v bb ivt 2 ignd 2 d 4 3 2 1 28 27 26 25 24 23 22 21 20 19 1
2 clockworks SY100HA643 micrel i vt = ovt = 5.0v 5%; v ee = ?.2v to ?.5v; v cce = gnd 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 ee ecl 58 58 58 58 ma v ee pins i ccl power supply ttl 83 83 83 83 ma total all ovt i cch 73 73 73 73 ma and ivt pins v oh ttl output high 2.5 2.5 2.5 2.5 v i oh = ?.0ma voltage 2.0 2.0 2.0 2.0 i oh = ?5ma v ol ttl output low voltage 0.5 0.5 0.5 0.5 v i ol = 48ma i os ttl output short circuit current ?0 ?00 ?0 ?00 ?0 ?00 ?0 ?00 ma v out = 0v i ih ecl input high current 225 225 175 175 a i il ecl input low current 0.5 0.5 0.5 0.5 a v ih ecl input high voltage ?165 ?80 ?165 ?80 ?165 ?80 mv v il ecl input low voltage ?810 ?475 ?810 ?475 ?810 ?475 mv v bb ecl output reference voltage ?380 ?260 ?380 ?260 ?380 ?260 ?380 ?260 mv d len en q llll hllh xxhl truth table dc characteristics
3 clockworks SY100HA643 micrel ac characteristics ivt = ovt = 5.0v 5%; v ee = ?.2v to ?.5v ; v cce = gnd 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 ih propagation delay d to output len 2.3 3.1 2.3 3.1 2.3 3.1 2.3 3.1 ns c l = 20pf en t skew within-device skew (1) 0.4 0.4 0.4 0.4 ns t pw pulse width out (2) high or low 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 ns c l = 20pf @ fout = 100mhz t s setup time d 0.75 0.75 0.75 0.75 ns t h hold time d 0.75 0.75 0.75 0.75 ns t rr recovery timelen 1.25 1.25 1.25 1.25 ns en 1.25 1.25 1.25 1.25 ns t pw minimum pulselen 1.5 1.5 1.5 1.5 ns width en 1.5 1.5 1.5 1.5 ns tr rise / fall times tf 0.8v ?2.0v 1.5 1.5 1.5 1.5 ns c l = 20pf f max max. input frequency (3,4) 160 160 160 160 mhz c l = 20pf notes: 1. within-device skew defined as identical transitions on similar paths through a device. 2. pulse width is defined relative to 1.5v measurement points on the output waveform. 3. frequency at which output levels will meet a 0.8v to 2.0v minimum swing. 4. the f max value is specified as the minimum guaranteed maximum frequency. actual operational maximum frequency may be greater. ordering package operating code type range SY100HA643jc j28-1 commercial SY100HA643jctr j28-1 commercial product ordering code ordering package operating code type range SY100HA643ji j28-1 industrial SY100HA643jitr j28-1 industrial
4 clockworks SY100HA643 micrel 28 lead plcc (j28-1) rev. 03 micrel-synergy 3250 scott boulevard santa clara ca 95054 usa tel + 1 (408) 980-9191 fax + 1 (408) 914-7878 web http://www.micrel.com this information is believed to be accurate and reliable, however no responsibility is assumed by micrel for its use nor for an y infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or pat ent right of micrel inc. ? 2000 micrel incorporated
|
