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SN74AHCT08N データシート(PDF) 5 Page - Texas Instruments |
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SN74AHCT08N データシート(HTML) 5 Page - Texas Instruments |
5 / 31 page SN54AHCT08, SN74AHCT08 www.ti.com SCLS237N – OCTOBER 1995 – REVISED SEPTEMBER 2015 7.4 Thermal Information SN74AHCT08 D (SOIC) DB (SSOP) DGV N (PDIP) THERMAL METRIC(1) UNIT (TVSOP) 14 PINS 14 PINS 14 PINS 14 PINS RθJA Junction-to-ambient thermal resistance 97.5 109.5 133.3 59.7 °C/W RθJC(top) Junction-to-case (top) thermal resistance 58.7 62.1 55.6 47.3 °C/W RθJB Junction-to-board thermal resistance 51.8 56.9 66.3 39.5 °C/W ψJT Junction-to-top characterization parameter 22.6 22.6 7.8 32.4 °C/W ψJB Junction-to-board characterization parameter 51.6 56.3 56.6 39.4 °C/W (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, (SPRA953). 7.5 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) TA = 25°C SN54AHCT08 SN74AHCT08 PARAMETER TEST CONDITIONS VCC UNIT MIN TYP MAX MIN MAX MIN MAX IOH = –50 µA 4.4 4.5 4.4 4.4 VOH 4.5 V V IOH = –8 mA 3.94 3.8 3.8 IOL = 50 µA 0.1 0.1 0.1 VOL 4.5 V V IOL = 8 mA 0.36 0.44 0.44 0 V to II VI = 5.5 V or GND ±0.1 ±1(1) ±1 µA 5.5 V ICC VI = VCC or GND, IO = 0 5.5 V 2 20 20 µA One input at 3.4 V, ΔICC (2) 5.5 V 1.35 1.5 1.5 mA Other inputs at VCC or GND Ci VI = VCC or GND 5 V 4 10 10 pF (1) On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V. (2) This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC. 7.6 Switching Characteristics, VCC = 5 V ± 0.5 V over recommended operating free-air temperature range (unless otherwise noted) (see Figure 2) FROM TO TA = 25°C SN54AHCT08 SN74AHCT08 LOAD PARAMETER UNIT (INPUT) (OUTPUT) CAPACITANCE MIN TYP MAX MIN MAX MIN MAX tPLH 5(1) 6.9(1) 1(1) 8(1) 1 8 A or B Y CL = 15 pF ns tPHL 5(1) 6.9(1) 1(1) 8(1) 1 8 tPLH 5.5 7.9 1 9 1 9 A or B Y CL = 50 pF ns tPHL 5.5 7.9 1 9 1 9 (1) On products compliant to MIL-PRF-38535, this parameter is not production tested. Copyright © 1995–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: SN54AHCT08 SN74AHCT08 |
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