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SN74AHC244DWR Folha de dados(PDF) 6 Page - Texas Instruments |
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SN74AHC244DWR Folha de dados(HTML) 6 Page - Texas Instruments |
6 / 31 page SN54AHC244, SN74AHC244 SCLS226K – OCTOBER 1995 – REVISED JULY 2014 www.ti.com 7.6 Switching Characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 3) TA = 25°C SN54AHC244 SN74AHC244 FROM TO LOAD PARAMETER UNIT (INPUT) (OUTPUT) CAPACITANCE MIN TYP MAX MIN MAX MIN MAX tPLH 5.8(1) 8.4(1) 1(1) 10(1) 1 10 A Y CL = 15 pF ns tPHL 5.8(1) 8.4(1) 1(1) 10(1) 1 10 tPZH 6.6(1) 10.6(1) 1(1) 12.5(1) 1 12.5 OE Y CL = 15 pF ns tPZL 6.6(1) 10.6(1) 1(1) 12.5(1) 1 12.5 tPHZ 5(1) 9.7(1) 1(1) 11(1) 1 11 OE Y CL = 15 pF ns tPLZ 5(1) 9.7(1) 1(1) 11(1) 1 11 tPLH 8.3 11.9 1 13.5 1 13.5 A Y CL = 50 pF ns tPHL 8.3 11.9 1 13.5 1 13.5 tPZH 9.1 14.1 1 16 1 16 OE Y CL = 50 pF ns tPZL 9.1 14.1 1 16 1 16 tPHZ 10.3 14 1 16 1 16 OE Y CL = 50 pF ns tPLZ 10.3 14 1 16 1 16 tsk(o) CL = 50 pF 1.5(2) 1.5 ns (1) On products compliant to MIL-PRF-38535, this parameter is not production tested. (2) On products compliant to MIL-PRF-38535, this parameter does not apply. 7.7 Switching Characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 3) TO TA = 25°C SN54AHC244 SN74AHC244 FROM LOAD PARAMETER (OUTPU UNIT (INPUT) CAPACITANCE MIN TYP MAX MIN MAX MIN MAX T) tPLH 3.9(1) 5.5(1) 1(1) 6.5(1) 1 6.5 A Y CL = 15 pF ns tPHL 3.9(1) 5.5(1) 1(1) 6.5(1) 1 6.5 tPZH 4.7(1) 7.3(1) 1(1) 8.5(1) 1 8.5 OE Y CL = 15 pF ns tPZL 4.7(1) 7.3(1) 1(1) 8.5(1) 1 8.5 tPHZ 5(1) 7.2(1) 1(1) 8.5(1) 1 8.5 OE Y CL = 15 pF ns tPLZ 5(1) 7.2(1) 1(1) 8.5(1) 1 8.5 tPLH 5.4 7.5 1 8.5 1 8.5 A Y CL = 50 pF ns tPHL 5.4 7.5 1 8.5 1 8.5 tPZH 6.2 9.3 1 10.5 1 10.5 OE Y CL = 50 pF ns tPZL 6.2 9.3 1 10.5 1 10.5 tPHZ 6.7 9.2 1 10.5 1 10.5 OE Y CL = 50 pF ns tPLZ 6.7 9.2 1 10.5 1 10.5 tsk(o) CL = 50 pF 1(2) 1 ns (1) On products compliant to MIL-PRF-38535, this parameter is not production tested. (2) On products compliant to MIL-PRF-38535, this parameter does not apply. 6 Submit Documentation Feedback Copyright © 1995–2014, Texas Instruments Incorporated Product Folder Links: SN54AHC244 SN74AHC244 |
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