1 standard ics hex schmitt trigger bu4584b / BU4584BF / BU4584BFv the bu4584b, BU4584BF, and BU4584BFv are inverter-type schmitt trigger circuits, with six circuits mounted on a single chip. these are ideal when enhanced noise immunity is required, and when wave form rectification circuits with slow rise or fall input times are involved. features 1) low power dissipation. 2) wide range of operating power supply voltage. 3) high input impedance. 4) high fan-out. 5) direct drive of 2 l-ttl inputs and ls-ttl input. block diagram 1 i 1 2 o 1 3 i 2 4 o 2 5 i 3 6 o 3 7 14 13 12 11 10 9 8 v ss v dd i 6 o 6 i 5 o 5 i 4 o 4 absolute maximum ratings (v ss = 0v, ta = 25?) parameter symbol limits unit v dd v mw c c v in v ? 0.3 ~ + 18 pd topr tstg 1000 ( dip ) , 450 ( sop ) , 350 ( ssop ) power supply voltage power dissipation operating temperature storage temperature input voltage ? 0.3 ~ v dd + 0.3 ? 40 ~ + 85 ? 55 ~ + 150
2 standard ics bu4584b / BU4584BF / BU4584BFv parameter symbol min. typ. max. unit conditions measurement circuit v dd ( v ) v ih 3.5 v 5 7.0 10 11.0 15 v il 1.5 v 5 3.0 10 4.0 15 i ih 0.3 m a15v ih = 15v i il ? 0.3 m a15v il = 0v v oh 4.95 v 5 i o = 0ma fig.1 10 9.95 15 14.95 v ol 0.05 v 5 i o = 0ma 10 0.05 15 0.05 i oh ? 0.44 ma 5v oh = 4.6v v oh = 9.5v v oh = 13.5v 10 ? 1.1 15 ? 3.0 i ol 0.44 ma 5v ol = 0.4v v ol = 0.5v v ol = 1.5v 10 1.1 15 3.0 i dd 1 m a 5 210 45 v h 0.15 0.6 v 5 fig.1 10 0.25 1.0 15 0.40 1.5 input high level voltage input low level voltage input high level current input low level current output high level voltage output low level voltage output high level current output low level current static current consumption hysteresis voltage electrical characteristics dc characteristics (unless otherwise noted, v ss = 0v, ta = 25?) switching characteristics (unless otherwise noted, ta = 25?, v ss = 0 v, c l =50pf) parameter symbol min. typ. max. unit conditions measurement circuit v dd ( v ) t tlh 100 ns 5 fig.2 50 10 40 15 t thl 100 ns 5 fig.2 50 10 40 15 t plh 125 ns 5 fig.2 60 10 50 15 t phl 125 ns 5 fig.2 60 10 50 15 output rise time output fall time propagation delay time, "l" to "h" propagation delay time, "h" to "l"
3 standard ics bu4584b / BU4584BF / BU4584BFv measurememt circuits v a v dd fig.1 dc characteristics gnd c l p. g. v dd 20ns 20ns t phl t plh t thl t tlh input output fig.2 switching characteristics gnd electrical characteristic curve power dissipation: pd (mw) 1200 1000 800 600 400 200 0 0 25 50 75 100 125 150 ambient temperature: ta ( c) sop14 ssop-b14 dip14 fig.3 power dissipation vs. ta
4 standard ics bu4584b / BU4584BF / BU4584BFv external dimensions (units: mm) bu4584b BU4584BFv BU4584BF dip14 ssop-b14 sop14 6.5 0.3 19.4 0.3 0.5 0.1 3.2 0.2 4.25 0.3 14 8 7 1 0.3 0.1 0.51min. 7.62 0 ~ 15 2.54 0.4 0.1 1.27 1 14 8.7 0.2 7 8 4.4 0.2 6.2 0.3 0.11 1.5 0.1 0.15 0.15 0.1 0.3min. 0.1 0.22 0.1 0.65 8 7 14 1 6.4 0.3 4.4 0.2 5.0 0.2 1.15 0.1 0.15 0.1 0.3min. 0.1
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