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L9954TR 데이터시트(PDF) 15 Page - STMicroelectronics |
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L9954TR 데이터시트(HTML) 15 Page - STMicroelectronics |
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15 / 37 page ![]() L9954 / L9954XP Electrical specifications Doc ID 14279 Rev 4 15/37 IDOLK Tristate leakage current VCSN = VCC, 0V < VDO < VCC -10 10 µA CDO (1) Tristate input capacitance VCSN = VCC, 0V < VCC < 5.3V 10 15 pF 1. Value of input capacity is not measured in production test. Parameter guaranteed by design. Table 16. DO timing Symbol Parameter Test condition Min. Typ. Max. Unit tr DO DO rise time CL = 100 pF, Iload = -1mA 80 140 ns tf DO DO fall time CL = 100 pF, Iload = 1mA 50 100 ns ten DO tri L DO enable time from tristate to low level CL = 100 pF, Iload = 1mA pull-up load to VCC 100 250 ns tdis DO L tri DO disable time from low level to tristate CL = 100 pF, Iload = 4 mA pull-up load to VCC 380 450 ns ten DO tri H DO enable time from tristate to high level CL =100 pF, Iload = -1mA pull-down load to GND 100 250 ns tdis DO H tri DO disable time from high level to tristate CL = 100 pF, Iload = -4mA pull-down load to GND 380 450 ns td DO DO delay time VDO < 0.3 VCC, VDO > 0.7VCC, CL = 100pF 50 250 ns Table 17. CSN timing Symbol Parameter Test condition Min. Typ. Max. Unit tCSN_HI,stb CSN HI time, switching from standby mode Transfer of SPI-command to Input Register 20 µs tCSN_HI,min CSN HI time, active mode Transfer of SPI-command to input register 4µs Table 15. DO (continued) Symbol Parameter Test condition Min. Typ. Max. Unit |
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