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74ALVCH16843DGG bảng dữ liệu(PDF) 7 Page - NXP Semiconductors |
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74ALVCH16843DGG bảng dữ liệu(HTML) 7 Page - NXP Semiconductors |
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7 / 12 page  Philips Semiconductors Product specification 74ALVCH16843 18-bit bus interface D-type latch (3-State) 1998 Aug 04 7 AC CHARACTERISTICS FOR VCC = 2.3V TO 2.7V RANGE GND = 0V; tr = tf ≤ 2.0ns; CL = 30pF LIMITS SYMBOL PARAMETER WAVEFORM VCC = 2.3 to 2.7V UNIT MIN TYP1 MAX Propagation delay nDn to nQn 1, 6 1.0 2.2 4.3 tPHL/tPLH Propagation delay nLE to nQn 2, 6 1.0 2.3 4.6 ns tPHL/tPLH Propagation delay nPRE to nQn 1, 6 1.0 2.5 4.8 ns Propagation delay nCLR to nQn 1, 6 1.0 2.5 4.8 tPZH/tPZL 3-State output enable time nOE to nQn 5, 6 1.0 2.8 5.8 ns tPHZ/tPLZ 3-State output disable time nOE to nQn 5, 6 1.1 2.2 4.3 ns tSU Set-up time nDn to nLE 3, 6 0.5 –0.1 – ns th Hold time nDn to nLE 3, 6 0.9 0.5 – ns nLE pulse width HIGH 2, 6 1.5 0.5 – tW nPRE pulse width LOW 4, 6 1.5 0.5 – ns nCLR pulse width LOW 4, 6 1.5 0.5 – tREM Recovery time nPRE to nLE 4, 6 0.5 1.1 – ns tREM Recovery time nCLR to nLE 4, 6 0.5 1.0 – ns NOTE: 1. All typical values are at VCC = 3.3V 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 LIMITS SYMBOL PARAMETER WAVEFORM VCC = 3.3 ± 0.3V VCC = 2.7V UNIT MIN TYP1, 2 MAX MIN TYP1 MAX Propagation delay nDn to nQn 1, 6 1.0 2.1 3.5 1.0 2.3 4.0 tPHL/tPLH Propagation delay nLE to nQn 2, 6 1.0 2.0 3.5 1.0 2.1 3.9 ns tPHL/tPLH Propagation delay nPRE to nQn 1, 6 1.0 2.2 3.8 1.0 2.6 4.5 ns Propagation delay nCLR to nQn 1, 6 1.0 2.3 3.9 1.0 2.5 4.3 tPZH/tPZL 3-State output enable time nOE to nQn 5, 6 1.0 2.5 4.4 1.0 3.0 5.3 ns tPHZ/tPLZ 3-State output disable time nOE to nQn 5, 6 1.3 2.6 4.0 1.3 2.8 4.4 ns tSU Set-up time nDn to nLE 3, 6 0.5 0.0 – 0.5 –0.3 – ns th Hold time nDn to nLE 3, 6 0.9 0.5 – 0.9 0.5 – ns nLE pulse width HIGH 2, 6 1.5 0.5 – 1.5 0.5 – tW nPRE pulse width LOW 4, 6 1.5 0.5 – 1.5 0.6 – ns nCLR pulse width LOW 4, 6 1.5 0.5 – 1.5 0.5 – tREM Recovery time nPRE to nLE 4, 6 1.0 0.4 – 0.8 –0.2 – ns tREM Recovery time nCLR to nLE 4, 6 0.8 0.2 – 0.6 –0.4 – ns NOTES: 1. All typical values are measured Tamb = 25°C. 2. Typical value is measured at VCC = 3.3V |
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