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SN74HC244N データシート(PDF) 10 Page - Texas Instruments |
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SN74HC244N データシート(HTML) 10 Page - Texas Instruments |
10 / 32 page 10 SN54HC244, SN74HC244 SCLS130E – DECEMBER 1982 – REVISED MAY 2016 www.ti.com Product Folder Links: SN54HC244 SN74HC244 Submit Documentation Feedback Copyright © 1982–2016, Texas Instruments Incorporated Parameter Measurement Information (continued) B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns. D. The outputs are measured one at a time with one input transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPLH and tPHL are the same as tpd. Table 1. Switching Information Table PARAMETER RL CL S1 S2 ten tPZH 1 k Ω 50 pF or 150 pF Open Closed tPZL 1 k Ω 50 pF or 150 pF Closed Open tdis tPHZ 1 k Ω 50 pF Open Closed tPLZ 1 k Ω 50 pF Closed Open tpd or tt — 50 pF or 150 pF Open Open |
同様の部品番号 - SN74HC244N |
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同様の説明 - SN74HC244N |
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