1 standard ics quad 2-input and gate bu4081b / bu4081bf / bu4081bfv the bu4081b, bu4081bf, and bu4081bfv are dual-input positive-logic and gates with four circuits mounted on a single chip. an inverter-type buffer is added to the gate output, improving input / output transmission speed, and an increased load capacitance suppresses fluctuation in transmission time to a minimum. features 1) low power dissipation. 2) wide range of operating power supply voltages. 3) high input impedance. 4) high fan-out. 5) direct drive of 2 l-ttl inputs and 1 ls-ttl input. logic circuit diagram v dd out v ss in in block diagram 1 a 1 2 b 1 3 o 1 4 o 2 5 b 2 6 a 2 7 14 13 12 11 10 9 8 v ss v dd a 4 b4 o 4 o 3 b 3 a 3
2 standard ics bu4081b / bu4081bf / bu4081bfv absolute maximum ratings (ta = 25?,v ss = 0v ) parameter symbol limits unit power supply voltage v dd v power dissipation mw operating temperature ?40 ~ + 85 c storage temperature ?55 ~ + 150 c input voltage v in v i / o pin current 10 ma i i / o ?0.3 ~ + 18 ?0.3 ~ v dd + 0.3 pd topr tstg 1000 (dip), 450 (sop), 350 (ssop) electrical characteristics (unless otherwise noted, v ss = 0v, ta = 25?) parameter symbol min. typ. max. unit conditions measurement circuit input high level voltage v ih 3.5 v 5 fig.1 7.0 10 11.0 15 input low level voltage v il 1.5 v 5 fig.1 3.0 10 4.0 15 input high level current i ih 0.3 m a15v ih = 15v fig.1 input low level current i il ?0.3 m a15v il = 0v fig.1 output high level voltage v oh 4.95 v 5 i o = 0ma fig.1 10 9.95 15 14.95 output low level voltage v ol 0.05 v 5 i o = 0ma fig.1 10 0.05 15 0.05 output high level current i oh ?0.16 ma 5v oh = 4.6v fig.1 10 v oh = 9.5v ?0.4 15 v oh = 13.5v ?1.2 output low level current i ol 0.44 ma 5v ol = 0.4v fig.1 10 v ol = 0.5v 1.1 15 v ol = 1.5v 3.0 static i dd 1 m a 5 v i = v dd or gnd 10 2 15 4 v dd (v) current dissipation
3 standard ics bu4081b / bu4081bf / bu4081bfv switching characteristics (unless otherwise noted, v ss = 0v, ta = 25?, c l = 50pf) parameter symbol min. typ. max. conditions measurement circuit t tlh 180 ns 5 fig.2 ?0 10 ?5 15 t thl 100 ns 5 fig.2 ?0 10 ?0 15 ??to ? propagation delay time t plh 160 ns 5 fig.2 ?5 10 ?0 15 ??to ? propagation delay time t phl 160 ns 5 fig.2 ?5 10 ?0 15 input capacitance c in ? pf v dd (v) unit output rise time output fall time measurement circuits v a v dd gnd fig. 1 dc characteristics p.g. v dd gnd c l = 50pf 90% 50% 10% 20ns 20ns v dd v ss v oh v ol input waveform output waveform 90% 50% 10% t plh t phl t thl t tlh fig. 2 switching characteristics
4 standard ics bu4081b / bu4081bf / bu4081bfv power dissipation: pd (mw) 1200 1000 800 600 400 200 0 0255075100125150 ambient temperature: ta ( c) sop14 ssop-b14 dip14 fig. 3 power dissipation vs. ta electrical characteristic curve bu4081b bu4081bfv bu4081bf 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 external dimensions (units: mm)
|
