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74HC194 数据表(PDF) 7 Page - NXP Semiconductors |
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74HC194 数据表(HTML) 7 Page - NXP Semiconductors |
7 / 10 page December 1990 7 Philips Semiconductors Product specification 4-bit bidirectional universal shift register 74HC/HCT194 AC CHARACTERISTICS FOR 74HC 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 47 17 14 145 29 25 180 36 31 220 44 38 ns 2.0 4.5 6.0 Fig.7 tPHL propagation delay MR to Qn 39 14 11 140 28 24 175 35 30 210 42 36 ns 2.0 4.5 6.0 Fig.8 tTHL/ tTLH output transition time 19 7 6 75 15 13 95 19 16 110 22 19 ns 2.0 4.5 6.0 Fig.7 tW clock pulse width HIGH or LOW 80 16 14 17 6 5 100 20 17 120 24 20 ns 2.0 4.5 6.0 Fig.7 tW master reset pulse width; LOW 80 16 14 17 6 5 100 20 17 120 24 20 ns 2.0 4.5 6.0 Fig.8 trem removal time MR to CP 60 12 10 17 6 5 75 15 13 90 18 15 ns 2.0 4.5 6.0 Fig.8 tsu set-up time Dn to CP 70 14 12 17 6 5 90 18 15 105 21 18 ns 2.0 4.5 6.0 Fig.9 tsu set-up time S0, S1 to CP 80 16 12 22 8 6 100 20 17 120 24 20 ns 2.0 4.5 6.0 Fig.10 tsu set-up time DSR, DSL to CP 70 14 12 19 7 6 90 18 15 105 21 18 ns 2.0 4.5 6.0 th hold time Dn to CP 0 0 0 −14 −5 −4 0 0 0 0 0 0 ns 2.0 4.5 6.0 Fig.9 th hold time S0, S1 to CP 0 0 0 −11 −4 −3 0 0 0 0 0 0 ns 2.0 4.5 6.0 Fig.10 th hold time DSR, DSL to CP 0 0 0 −17 −6 −5 0 0 0 0 0 0 ns 2.0 4.5 6.0 fmax maximum clock pulse frequency 6.0 30 35 31 93 111 4.8 24 28 4.0 20 24 MHz 2.0 4.5 6.0 Fig.7 |
类似零件编号 - 74HC194 |
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类似说明 - 74HC194 |
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