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SN74LVT245BDWR 数据表(PDF) 4 Page - Texas Instruments |
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SN74LVT245BDWR 数据表(HTML) 4 Page - Texas Instruments |
4 / 19 page SN74LVT245B 3.3-V ABT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCES004H − JANUARY 1995 − REVISED SEPTEMBER 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 2.7 V, II = −18 mA −1.2 V VCC = 2.7 V to 3.6 V, IOH = −100 μA VCC−0.2 VOH VCC = 2.7 V, IOH = −8 mA 2.4 V VOH VCC = 3 V, IOH = −32 mA 2 V V 27V IOL = 100 μA 0.2 VCC = 2.7 V IOL = 24 mA 0.5 VOL IOL = 16 mA 0.4 V VOL VCC = 3 V IOL = 32 mA 0.5 V VCC 3 V IOL = 64 mA 0.55 Control inputs VCC = 3.6 V, VI = VCC or GND ±1 Control inputs VCC = 0 or 3.6 V, VI = 5.5 V 10 II VI = 5.5 V 20 μA II A or B ports‡ VCC = 3.6 V VI = VCC 1 μA A or B ports VCC 3.6 V VI = 0 −5 Ioff VCC = 0, VI or VO = 0 to 4.5 V ±100 μA IOZH VCC = 3.6 V, VO = 3 V 5 μA IOZL VCC = 3.6 V, VO = 0.5 V −5 μA IOZPU VCC = 0 to 1.5 V, VO = 0.5 V to 3 V, OE = don’t care ±100 μA IOZPD VCC = 1.5 V to 0, VO = 0.5 V to 3 V, OE = don’t care ±100 μA VCC = 3.6 V, Outputs high 0.19 ICC VCC = 3.6 V, IO = 0, Outputs low 5 mA ICC IO 0, VI = VCC or GND Outputs disabled 0.19 mA ΔICC§ VCC = 3 V to 3.6 V, One input at VCC − 0.6 V, Other inputs at VCC or GND 0.2 mA Ci VI = 3 V or 0 4 pF Cio VO = 3 V or 0 9 pF † All typical values are at VCC = 3.3 V, TA = 25°C. ‡ Unused terminals are at VCC or GND. § This is the increase in supply current for each input that is at the specified TTL-voltage level, rather than VCC or GND. switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 3.3 V ± 0.3 V VCC = 2.7 V UNIT PARAMETER (INPUT) (OUTPUT) MIN TYP† MAX MIN MAX UNIT tPLH AorB BorA 1.2 2.3 3.5 4 ns tPHL A or B B or A 1.2 2.1 3.5 4 ns tPZH OE AorB 1.3 3.2 5.5 7.1 ns tPZL OE A or B 1.7 3.4 5.5 6.5 ns tPHZ OE AorB 2.2 3.5 5.9 6.5 ns tPLZ OE A or B 2.2 3.4 5 5.1 ns † All typical values are at VCC = 3.3 V, TA = 25°C. |
类似零件编号 - SN74LVT245BDWR |
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类似说明 - SN74LVT245BDWR |
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