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SN74F621 データシート(PDF) 3 Page - Texas Instruments |
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SN74F621 データシート(HTML) 3 Page - Texas Instruments |
3 / 14 page SN54F621, SN74F621 OCTAL BUS TRANSCEIVERS WITH OPEN-COLLECTOR OUTPUTS SDFS004B – D2932, MARCH 1987 – REVISED OCTOBER 1993 2–3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54F621 SN74F621 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 VCC = 4.5 V, VOH = 5.5 V 250 250 µA A1 A8 IOL = 20 mA 0.3 0.5 VOL A1 – A8 VCC =4 5V IOL = 24 mA 0.35 0.5 V VOL B1 B8 VCC = 4.5 V IOL = 48 mA 0.38 0.55 V B1 – B8 IOL = 64 mA 0.42 0.55 II A and B ports VCC =5 5V VI = 5.5 V 1 1 mA II OEAB or OEBA VCC = 5.5 V VI = 7 V 0.1 0.1 mA I ‡ A and B ports VCC =5 5V VI =2 7V 70 70 µA IIH‡ OEAB or OEBA VCC = 5.5 V, VI = 2.7 V 20 20 µA I ‡ A and B ports VCC =5 5V VI =0 5V – 0.65 – 0.65 mA IIL‡ OEAB or OEBA VCC = 5.5 V, VI = 0.5 V – 0.6 – 0.6 mA ICCH VCC = 5.5 V 105 140 105 140 mA ICCL VCC = 5.5 V 105 140 105 140 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. switching characteristics (see Note 2) 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) ′F621 SN54F621 SN74F621 MIN TYP MAX MIN MAX MIN MAX tPLH A B 6 9.5 12 5.5 13 5.5 13 ns tPHL A B 2.5 3.8 8 2 8.5 2 8.5 ns tPLH B A 6 9 12 5.5 12.5 5.5 12.5 ns tPHL B A 2.5 4 7.5 2 8 2 8 ns tPLH OEBA A 6 10 13.5 5.5 14 5.5 14 ns tPHL OEBA A 3.5 6.5 10.5 2.5 11 2.5 11 ns tPLH OEAB B 7 12 15 6 17 6 17 ns tPHL OEAB B 3.5 6.5 9.5 3 10 3 10 ns § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. NOTE 2: Load circuits and waveforms are shown in Section 1. |
同様の部品番号 - SN74F621 |
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同様の説明 - SN74F621 |
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