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74LV541D bảng dữ liệu(PDF) 6 Page - NXP Semiconductors |
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6 / 12 page Philips Semiconductors Product specification 74LV541 Octal buffer/line driver (3-State) 1998 Jun 10 6 AC CHARACTERISTICS GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL = 1KW CONDITION LIMITS SYMBOL PARAMETER WAVEFORM CONDITION –40 to +85 °C –40 to +125 °C UNIT VCC(V) MIN TYP1 MAX MIN MAX 1.2 – 60 – – – t /t Propagation delay Figure 1 2.0 – 20 39 – 46 ns tPHL/tPLH gy An to Yn Figure 1 2.7 – 15 29 – 34 ns 3.0 to 3.6 – 112 23 – 27 1.2 – 100 – – – t /t 3-State output enable time Figure 2 2.0 – 34 65 – 77 ns tPZH/tPZL OEn to Yn Figure 2 2.7 – 25 48 – 56 ns 3.0 to 3.6 – 192 38 – 45 1.2 – 100 – – – t /t 3-State output disable time Figure 2 2.0 – 36 66 – 78 ns tPHZ/tPLZ OEn to Yn Figure 2 2.7 – 27 48 – 58 ns 3.0 to 3.6 – 212 39 – 47 NOTES: 1. Unless otherwise stated, all typical values are at Tamb = 25°C. 2. Typical value measured at VCC = 3.3V. AC WAVEFORMS VM = 1.5V at VCC w 2.7V VM = 0.5 * VCC at VCC t 2.7V VOL and VOH are the typical output voltage drop that occur with the output load. VX = VOL + 0.3V at VCC w 2.7V VX = VOL + 0.1VCC at VCC < 2.7V VY = VOH – 0.3V at VCC w 2.7V VY = VOH – 0.1 VCC at VCC < 2.7V SV00684 VM An INPUT Yn OUTPUT VM tPLH tPHL GND VOL V1 VOH Figure 1. Input (An) to output (Yn) propagation delays SV00685 outputs disabled outputs enabled outputs enabled tPHZ tPZH tPZL tPLZ OUTPUT HIGH-to-OFF OFF–to-HIGH OUTPUT LOW-to-OFF OFF-to-LOW VM VM OEn INPUT VX VOL VOH VY GND GND VCC VI VM Figure 2. 3-State enable and disable times |
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