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74HCT191D Arkusz danych(PDF) 11 Page - NXP Semiconductors |
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74HCT191D Arkusz danych(HTML) 11 Page - NXP Semiconductors |
11 / 14 page December 1990 11 Philips Semiconductors Product specification Presettable synchronous 4-bit binary up/down counter 74HC/HCT191 AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr =tf = 6 ns; CL = 50 pF SYMBOL PARAMETER Tamb (°C) UNIT TEST CONDITIONS 74HC VCC (V) WAVEFORMS +25 −40 to +85 −40 to +125 min. typ. max. min. max. min. max. tPHL/ tPLH propagation delay CP to Qn 26 48 60 72 ns 4.5 Fig.10 tPHL/ tPLH propagation delay CP to TC 32 51 64 77 ns 4.5 Fig.10 tPHL/ tPLH propagation delay CP to RC 19 35 44 53 ns 4.5 Fig.11 tPHL/ tPLH propagation delay CE to RC 19 33 41 50 ns 4.5 Fig.11 tPHL/ tPLH propagation delay Dn to Qn 22 44 55 66 ns 4.5 Fig.12 tPHL/ tPLH propagation delay PL to Qn 27 46 58 69 ns 4.5 Fig.13 tPHL/ tPLH propagation delay U/D to TC 23 45 56 68 ns 4.5 Fig.14 tPHL/ tPLH propagation delay U/D to RC 24 45 56 68 ns 4.5 Fig.14 tTHL/ tTLH output transition time 7 15 19 22 ns 4.5 Fig.15 tW clock pulse width HIGH or LOW 16 9 20 24 ns 4.5 Fig.10 tW parallel load pulse width LOW 22 11 28 33 ns 4.5 Fig.15 trem removal time PL to CP 7 1 9 11 ns 4.5 Fig.15 tsu set-up time U/D to CP 41 20 51 62 ns 4.5 Fig.17 tsu set-up time Dn to PL 20 9 25 30 ns 4.5 Fig.16 tsu set-up time CE to CP 30 18 38 45 ns 4.5 Fig.17 th hold time U/D to CP 0 −18 0 0 ns 4.5 Fig.17 th hold time Dn to PL 0 −5 0 0 ns 4.5 Fig.16 th hold time CE to CP 0 −10 0 0 ns 4.5 Fig.17 fmax maximum clock pulse frequency 20 33 16 13 MHz 4.5 Fig.10 |
Podobny numer części - 74HCT191D |
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Podobny opis - 74HCT191D |
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