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74ALVCH16821DL bảng dữ liệu(PDF) 7 Page - NXP Semiconductors |
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7 / 12 page Philips Semiconductors Product specification 74ALVCH16821 20-bit bus-interface D-type flip-flop; positive-edge trigger (3-State) 1998 May 29 7 AC CHARACTERISTICS FOR VCC = 2.3V TO 2.7V RANGE GND = 0V; tr = tf ≤ 2.0ns; CL = 30pF LIMITS SYMBOL PARAMETER WAVEFORM VCC = 2.5V ± 0.2V UNIT MIN TYP1 MAX tPLH/tPHL Propagation delay nCP to nQn 1, 4 1.0 2.6 5.8 ns tPZH/tPZL 3-State output enable time nOEn to nQn 2, 4 1.0 2.8 6.6 ns tPHZ/tPLZ 3-State output disable time nOEn to nQn 2, 4 1.0 2.2 5.7 ns tW nCP pulse width HIGH or LOW 3, 4 3.0 1.8 ns tSU Set up time nDn to nCP 3, 4 1.4 0.3 ns th Hold time nDn to nCP 3, 4 0.4 0.0 ns Fmax Maximum clock pulse frequency 1, 4 150 250 MHz NOTE: 1. All typical values are at VCC = 2.5V and Tamb = 25°C. AC CHARACTERISTICS FOR VCC = 3.0V TO 3.6V RANGE AND VCC = 2.7V GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF LIMITS SYMBOL PARAMETER WAVEFORM VCC = 3.3 ± 0.3V VCC = 2.7V UNIT MIN TYP1 MAX MIN TYP1 MAX tPHL/tPLH Propagation delay nCP to nQn 1, 4 1.0 2.5 4.5 1.0 2.8 5.3 ns tPZH/tPZL 3-State output enable time nOEn to nQn 2, 4 1.0 2.3 5.1 1.0 3.2 6.2 ns tPHZ/tPLZ 3-State output disable time nOEn to nQn 2, 4 1.0 2.8 4.6 1.0 3.1 5.0 ns tW nCP pulse width HIGH or LOW 3, 4 3.3 0.2 3.3 1.7 ns tSU Set up time nDn to nCP 3, 4 1.0 0.2 1.2 0.3 ns th Hold time nDn to nCP 3, 4 0.8 0.4 0.6 –0.3 ns Fmax Maximum clock pulse frequency 1, 4 150 350 150 300 MHz NOTES: 1. All typical values are at Tamb = 25°C. |
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