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SN74F242DR 数据表(PDF) 4 Page - Texas Instruments |
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SN74F242DR 数据表(HTML) 4 Page - Texas Instruments |
4 / 5 page SN54F242, SN74F242 QUADRUPLE BUS TRANSCEIVERS WITH 3STATE OUTPUTS SDFS062A − D2932, MARCH 1987 − REVISED OCTOBER 1993 2−4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54F242 SN74F242 UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = − 18 mA − 1.2 − 1.2 V IOH = − 3 mA 2.4 3.3 2.4 3.3 VOH VCC = 4.5 V IOH = − 12 mA 2 3.2 V VOH VCC = 4.5 V IOH = − 15 mA 2 3.1 V VCC = 4.75 V, IOH = − 3 mA 2.7 VOL VCC = 4.5 V IOL = 48 mA 0.38 0.55 V VOL VCC = 4.5 V IOL = 64 mA 0.42 0.55 V II A or B port VCC = 5.5 V VI = 5.5 V 1 1 mA II Control inputs VCC = 5.5 V VI = 7 V 0.1 0.1 mA IIH A or B port‡ VCC = 5.5 V, VI = 2.7 V 70 70 A IIH Control inputs VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL‡ VCC = 5.5 V, VI = 0.5 V −1 −1 mA IOS§ VCC = 5.5 V, VO = 0 − 100 − 225 − 100 − 225 mA VCC = 5.5 V, Outputs high 30 46 30 46 ICC VCC = 5.5 V, See Note 2 Outputs low 46 69 46 69 mA ICC See Note 2 Outputs disabled 42 63 42 63 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ For I/O ports, the parameters IIH and IIL include the off-state output current. § Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. NOTE 2: ICC is measured either with all transceivers enabled in only one direction or all transceivers disabled. switching characteristics (see Note 3) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX¶ UNIT (INPUT) (OUTPUT) ′F242 SN54F242 SN74F242 MIN TYP MAX MIN MAX MIN MAX tPLH A or B B or A 2.2 4.1 6.5 2.2 9 2.2 7.5 ns tPHL A or B B or A 1 2.6 4.5 0.5 5 1 4.5 ns tPZL Enable A or B 2.7 5.6 7.5 2.2 10 2.7 8.5 ns tPZH Enable A or B 2.7 6.1 9 2.2 12 2.7 10.5 ns tPHZ Disable A or B 1.8 6.6 9 1.8 11 1.8 9.5 ns tPLZ Disable A or B 2.7 5.6 9.5 2.3 13.5 2.7 11 ns ¶ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. NOTE 3: Load circuits and waveforms are shown in Section 1. |
类似零件编号 - SN74F242DR |
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类似说明 - SN74F242DR |
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