1 standard ics 8-bit compatible shift / store register bu4094bc / bu4094bcf / bu4094bcfv the bu4094bc, bu4094bcf, and bu4094bcfv are shift / store registers, each consisting of an 8-bit register and an 8-bit latch. as the data in the shift register can be latched by an asynchronous strobe input, it is possible to hold the output in the data transfer mode. the tri-state parallel output can be connected directly with an 8-bit bus line. these registers are suitable for in-line / parallel data conversion, data receivers and other similar applications. logic circuit diagram truth table 8-stage shift register in clock serial q s q' s serial output parallel outputs 8-bit latches strobe 3-state outputs output enable q 1 q 8 clock output enable strobe parallel output serial output q 1 q n q s hh l l q 7 nc hh h h q 7 nc hl xncncq 7 nc lx x zzq 7 nc hx xncncncq s lx x zzncq s q n-1 q n-1 serial in q' s nc: no change z: high impedance x: irrelevant block diagram 2 serial in strobe q 1 q 2 q 3 q 4 clock 3 4 5 6 7 8 15 14 13 12 11 10 9 v ss 1 output enable v dd q 6 q 7 q 8 q' s q 5 q s 16
2 standard ics bu4094bc / bu4094bcf / bu4094bcfv absolute maximum ratings (ta = 25?) parameter symbol limits unit power supply voltage v dd v power dissipation mw operating temperature topr c storage temperature tstg c input voltage v in v ?0.5 ~ v dd + 0.5 pd ?0.5 ~ + 20 ?55 ~ + 150 ?40 ~ + 85 1000 (dip), 500 (sop) 400 (ssop) electrical characteristics dc characteristics (unless otherwise noted, v ss = 0v, ta = 25?) parameter symbol min. typ. max. unit conditions v dd (v) 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 dissipation output high level disable current output low level disable current 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 9.95 10 14.95 15 v ol 0.05 v 5 i o = 0ma 0.05 10 0.05 15 i oh ?0.44 ma 5v oh = 4.6v ?1.1 10 v oh = 9.5v ?3.0 15 v oh = 13.5v i ol 0.44 ma 5v ol = 0.4v 1.1 10 v ol = 0.5v 3.0 15 v ol = 1.5v i dd i dh 20 m a m a 5 v i = v dd , or gnd v out = 15v 40 10 80 1.0 15 15 i dl m av out = 0v ?1.0 15
3 standard ics bu4094bc / bu4094bcf / bu4094bcfv switching characteristics (unless otherwise noted, v ss = 0v, ta = 25?, c l = 50pf) parameter symbol min. typ. max. unit conditions measurement circuit t tlh 100 ns 5 fig.1 50 ns 10 40 ns 15 t thl 100 ns 5 fig.1 50 ns 10 40 ns 15 t plh t phl 350 600 ns 5 fig.1 125 250 ns 10 95 190 ns 15 t plh t phl 230 460 ns 5 fig.1 110 220 ns 10 75 150 ns 15 t plh t phl 420 840 ns 5 fig.1 195 390 ns 10 135 270 ns 15 t plh t phl 290 580 ns 5 fig.1 145 290 ns 10 100 200 ns 15 t phz t pzh 140 280 ns 5 r l = 1k w fig.2 75 150 ns 10 55 110 ns 15 t plz t pzl 140 280 ns 5 r l = 1k w fig.2 75 150 ns 10 55 110 ns 15 t su 20 125 ns 5 fig.1 8 55 ns 10 6 35 ns 15 t h ?040ns 5 fig.1 ?020ns 10 5 15 ns 15 t w 100 200 ns 5 fig.1 50 100 ns 10 ?080ns 15 t r (cl) t f (cl) no limit m s5 fig.1 m s10 m s15 f cl 1.25 5 mhz 5 fig.1 2.5 10 mhz 10 3.0 12.5 mhz 15 t wh 100 200 ns 5 fig.1 ?080ns 10 ?570ns 15 c in ? pf v dd (v) output rise time output fall time propagation delay time, clock to qs propagation delay time, clock to qs propagation delay time, clock to qn propagation delay time, strobe to qn 3-state propagation delay time, output enable to qn 3-state propagation delay time, output enable to qn minimum setup time, data to clock minimum hold time, clock to data minimum clock pulse width maximum clock rise time and fall time maximum clock frequency minimum strobe pulse width input capacitance
4 standard ics bu4094bc / bu4094bcf / bu4094bcfv measurement circuits 50pf output gnd p.g. clock data strobe output enable fig. 1 switching waveform output gnd p.g. clock data strobe output enable 1k w 50pf sw v dd a b a: t plz , t pzl b: t phz , t pzh fig. 2 3-state delay time 90% 90% 50% 50% 50% 50% 50% 10% tr tf 50% 50% t w t h t su 50% 50% 50% 50% 50% t wh 90% 50% 10% 10% 90% 90% 10% 50% 90% 10% 50% 50% 50% 50% t plh t phl t plh t plh t phl 50% t plh t phz t plz t pzl t pzh t tlh t thl t phl clock data strobe output enable q 1 ~ q 8 qs q's fig. 3 switching time test waveform 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) sop16 ssop - b16 dip16 fig. 4 power dissipation vs. ambient temperature
5 standard ics bu4094bc / bu4094bcf / bu4094bcfv bu4094bc bu4094bcf bu4094bcfv dip16 sop16 ssop-b16 0.4 0.1 1.27 0.15 0.15 0.1 0.3min. 4.4 0.2 6.2 0.3 0.11 1.5 0.1 1 16 10.0 0.2 8 9 9 8 16 1 0.1 6.4 0.3 4.4 0.2 5.0 0.2 0.1 0.15 0.1 0.22 0.1 0.65 1.15 0.1 0.3min. 0.51min. 0.3 0.1 9 16 8 1 6.5 0.3 3.2 0.2 4.25 0.3 0.5 0.1 19.4 0.3 2.54 0 ~ 15 7.62 external dimensions (units: mm)
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