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74ACT11245DBRG4 Datasheet(PDF) 4 Page - Texas Instruments |
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74ACT11245DBRG4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 25 page 74ACT11245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCAS031C – JULY 1987 – REVISED APRIL 1996 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C MIN MAX UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX UNIT IOH =50 mA 4.5 V 4.4 4.4 IOH = –50 mA 5.5 V 5.4 5.4 VOH IOH =24 mA 4.5 V 3.94 3.8 V OH IOH = –24 mA 5.5 V 4.94 4.8 IOH = –75 mA{ 5.5 V 3.85 IOL =50 mA 4.5 V 0.1 0.1 IOL = 50 mA 5.5 V 0.1 0.1 VOL IOL =24mA 4.5 V 0.36 0.44 V OL IOL = 24 mA 5.5 V 0.36 0.44 IOL = 75 mA{ 5.5 V 1.65 IOZ A or B ports‡ VO = VCC or GND 5.5 V ±0.5 ±5 mA II OE or DIR VI = VCC or GND 5.5 V ±0.1 ±1 mA ICC VI = VCC or GND, IO = 0 5.5 V 8 80 mA DICC§ One input at 3.4 V, Other inputs at GND or VCC 5.5 V 0.9 1 mA Ci VI = VCC or GND 5 V 4 pF Co VO = VCC or GND 5 V 12 pF † Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms. ‡ For I/O ports, the parameter IOZ includes the input leakage current. § This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC. switching characteristics over recomended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1) PARAMETER FROM TO TA = 25°C MIN MAX UNIT PARAMETER (INPUT) (OUTPUT) MIN TYP MAX MIN MAX UNIT tPLH AorB BorA 1.5 6.2 9.2 1.5 10 ns tPHL A or B B or A 1.5 5.4 8.6 1.5 9.1 ns tPZH OE AorB 1.5 8.1 12 1.5 13.2 ns tPZL OE A or B 1.5 8.2 11.7 1.5 12.9 ns tPHZ OE AorB 1.5 9.3 11.8 1.5 12.9 ns tPLZ OE A or B 1.5 9.8 12.9 1.5 13.9 ns operating characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT C d Power dissipation capacitance per transceiver Outputs enabled CL =50 pF f=1MHz 66 pF Cpd Power dissipation capacitance per transceiver Outputs disabled CL = 50 pF, f = 1 MHz 19 pF |
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