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PI74FCT191T Datasheet(PDF) 2 Page - Pericom Semiconductor Corporation |
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PI74FCT191T Datasheet(HTML) 2 Page - Pericom Semiconductor Corporation |
2 / 6 page 2 PS2084B 01/13/97 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74FCT191T (25 Ω Ω Ω Ω Ω SERIES) PI74FCT2191T 4-BIT BINARY COUNTERS Product Pin Description Truth Table(1) Product Pin Configurations (All Pins Top View) 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 16-Pin Q16 S16 Notes: 1. H = High Voltage Level L= Low Voltage Level X = Dont Care Z= High Impedance D1 Q1 Q0 CE U/D Q2 Q3 GND VCC D0 CP RC TC PL D2 D3 e m a N n i PO / In o it p i r c s e D 0 D - 3 DI st u p n I a t a D 0 Q - 3 QO st u p t u O a t a D L PI d a o l e r P D / UI t c el e S n w o D / p U E CI el b a n E t n u o C P CI k c o l C t n u o C C TO t n u o C l a n i m r e T C RO k c o l C el p p i R s t u p n Is t u p t u O L PD / UP CE CI D0 Q - 3 QC TC Rn o it c n u F L XXX 0 D - 3 D0 D - 3 DX X a t a D d a o L HL ↑ LX 1 + QL H p U t n u o C HH ↑ LX 1 - QL H n w o D t n u o C H XXH X Q XX ti b i h n I t n u o C HL Η LX F H H 1 1 1 1 = p U t n u o C HL LX FH 1 1 1 1 = p U t n u o C H L XXX E - 0L H p U t n u o C ≠ 1 1 1 1 HHH L X 0 H H 0 0 0 0 = n w o D t n u o C HH L X 0 H 0 0 0 0 = n w o D t n u o C H H XXX F - 1L H n w o D t n u o C ≠ 0 0 0 0 |
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