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TC74LCXR164245FT データシート(PDF) 8 Page - Toshiba Semiconductor |
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TC74LCXR164245FT データシート(HTML) 8 Page - Toshiba Semiconductor |
8 / 11 page TC74LCXR164245FT 2004-12-20 8 AC Characteristics (input: tr = tf = 2.5 ns, RL = 500 Ω) VCCA = 3.3 ± 0.3 V Ta = −40 to 85°C Characteristics Symbol Test Condition CL (pF) VCCB (V) Min Max Unit Propagation delay time (Bn → An) tpLH tpHL 50 5.0 ± 0.5 1.0 6.8 3-state output enable time ( OE → An) tpZL tpZH 50 5.0 ± 0.5 1.0 10.0 3-state output disable time ( OE → An) tpLZ tpHZ Input: Bn Output: An (DIR = “L”) 50 5.0 ± 0.5 1.0 9.5 ns Propagation delay time (An → Bn) tpLH tpHL 50 5.0 ± 0.5 1.0 6.8 3-state output enable time ( OE → Bn) tpZL tpZH 50 5.0 ± 0.5 1.0 10.0 3-state output disable time ( OE → Bn) tpLZ tpHZ Input: An Output: Bn (DIR = “H”) 50 5.0 ± 0.5 1.0 9.5 ns Output to output skew tosLH tosHL (Note 12) 50 5.0 ± 0.5 1.0 ns Note 12: Parameter guaranteed by design. (tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|) VCCA = 2.5 ± 0.2 V Ta = −40 to 85°C Characteristics Symbol Test Condition CL (pF) VCCB (V) Min Max Unit Propagation delay time (Bn → An) tpLH tpHL 30 5.0 ± 0.5 1.0 9.0 3-state output enable time ( OE → An) tpZL tpZH 30 5.0 ± 0.5 1.0 12.5 3-state output disable time ( OE → An) tpLZ tpHZ Input: Bn Output: An (DIR = “L”) 30 5.0 ± 0.5 1.0 11.5 ns Propagation delay time (An → Bn) tpLH tpHL 50 5.0 ± 0.5 1.0 10.0 3-state output enable time ( OE → Bn) tpZL tpZH 50 5.0 ± 0.5 1.0 12.5 3-state output disable time ( OE → Bn) tpLZ tpHZ Input: An Output: Bn (DIR = “H”) 50 5.0 ± 0.5 1.0 11.5 ns Output to output skew tosLH tosHL (Note 12) 30 or 50 5.0 ± 0.5 1.0 ns Note 12: Parameter guaranteed by design. (tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|) |
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