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74AVC20T245DGGG4 Scheda tecnica(PDF) 8 Page - Texas Instruments |
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74AVC20T245DGGG4 Scheda tecnica(HTML) 8 Page - Texas Instruments |
8 / 22 page SN74AVC20T245 20BIT DUALSUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS SCES566F − MAY 2004 − REVISED APRIL 2005 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V UNIT PARAMETER (INPUT) (OUTPUT) TYP MIN MAX MIN MAX MIN MAX MIN MAX UNIT tPLH A B 3.4 0.5 5.7 0.5 4.6 0.5 3.4 0.5 2.9 ns tPHL A B 3.4 0.5 5.7 0.5 4.6 0.5 3.4 0.5 2.9 ns tPLH B A 3.3 0.5 3.9 0.5 3.5 0.5 3 0.5 2.9 ns tPHL B A 3.3 0.5 3.9 0.5 3.5 0.5 3 0.5 2.9 ns tPZH OE A 2.2 0.5 4.4 0.5 4.3 0.5 4.2 0.5 4.1 ns tPZL OE A 2.2 0.5 4.4 0.5 4.3 0.5 4.2 0.5 4.1 ns tPZH OE B 4.7 1 9.6 0.5 7.5 0.5 5.1 0.5 4.1 ns tPZL OE B 4.7 1 9.6 0.5 7.5 0.5 5.1 0.5 4.1 ns tPHZ OE A 3.4 0.8 5 0.8 5 0.8 5 0.8 5 ns tPLZ OE A 3.4 0.8 5 0.8 5 0.8 5 0.8 5 ns tPHZ OE B 4.6 1.2 8.1 1.2 6.7 1 5.1 0.8 5 ns tPLZ OE B 4.6 1.2 8.1 1.2 6.7 1 5.1 0.8 5 ns operating characteristics, TA = 25°C PARAMETER TEST CONDITIONS VCCA = VCCB = 1.2 V VCCA = VCCB = 1.5 V VCCA = VCCB = 1.8 V VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V UNIT PARAMETER CONDITIONS TYP TYP TYP TYP TYP UNIT A to B Outputs Enabled 1 1 1 1 2 CpdA† A to B Outputs Disabled CL = 0, f = 10 MHz, 1 1 1 1 1 pF CpdA† B to A Outputs Enabled f = 10 MHz, tr = tf =1 ns 12 13 14 15 16 pF B to A Outputs Disabled 1 1 1 1 1 A to B Outputs Enabled 13 13 14 15 16 CpdB† A to B Outputs Disabled CL = 0, f = 10 MHz, 1 1 1 1 1 pF CpdB† B to A Outputs Enabled L f = 10 MHz, tr = tf =1 ns 1 1 1 2 2 pF B to A Outputs Disabled 1 1 1 1 1 † Power-dissipation capacitance per transceiver |
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