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CD3206BB Datasheet(PDF) 4 Page - NXP Semiconductors |
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CD3206BB Datasheet(HTML) 4 Page - NXP Semiconductors |
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4 / 18 page  Philips Semiconductors Product specification FB2031 9-bit latched/registered/pass-thru Futurebus+ transceiver 1995 May 25 4 FUNCTION TABLE MODE INPUTS OUTPUTS MODE An Bn* OEB0 OEB1 OEA LCAB LCBA SEL0 SEL1 An Bn An to Bn thru mode L — H L L X X H L input H** An to Bn thru mode H — H L L X X H L input L An to Bn transparent latch L — H L L L X L L input H** An to Bn transparent latch H — H L L L X L L input L An to Bn latch and read l — H L L ↑ X L L input H** An to Bn latch and read h — H L L ↑ X L L input L Bn outputs latched and read (preconditioned latch) X — H L X H X L L X latched data An to Bn register l — H L L ↑ X X H input H** An to Bn register h — H L L ↑ X X H input L Bn to An thru mode — L Disable H X X H L H input Bn to An thru mode — H Disable H X X H L L input — L Disable H X L L L H input Bn to An transparent latch — H Disable H X L L L L input Bn to An transparent latch — L Disable H X L H H H input — H Disable H X L H H L input — l Disable H X ↑ L L H input Bn to An latch and read — h Disable H X ↑ L L L input Bn to An latch and read — l Disable H X ↑ H H H input — h Disable H X ↑ H H L input An outputs latched and read — X X X H X H L L latched data X (preconditioned latch) — X X X H X H H H latched data X Bn to An register — l Disable H X ↑ L H H input Bn to An register — h Disable H X ↑ L H L input Disable Bn outputs X X L X X X X X X X H** Disable Bn outputs X X X H X X X X X X H** Disable An outputs X X X X L X X X X Z X FUNCTION SELECT TABLE MODE SELECTED SEL0 SEL1 Thru mode H L Register mode (An to Bn) X H Latch mode (An to Bn) L L Register mode (Bn to An) L H Latch mode (Bn to An) L L Latch mode (Bn to An) H H NOTES: H = High voltage level L = Low voltage level l = Low voltage level one set-up time prior to the Low-to-High LCXX transition h = High voltage level one set-up time prior to the Low-to-High LCXX transition X = Don’t care Z = High-impedance (OFF) state — = Input not externally driven ↑ = Low-to-High transition H** = Goes to level of pull-up voltage Bn* = Precaution should be taken to ensure B inputs do not float. If they do, they are equal to Low state. Disable = OEB0 is Low or OEB1 is High. |
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