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L99MOD50XP 数据表(PDF) 18 Page - STMicroelectronics |
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L99MOD50XP 数据表(HTML) 18 Page - STMicroelectronics |
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18 / 42 page ![]() Electrical specifications L99MOD50XP 18/42 DS12615 Rev 4 Figure 3. SPI - Transfer timing diagram Table 17. DO timing Item Symbol Parameter Test condition Min. Typ. Max. Unit 18.1 tr DO DO rise time CDO = 100 pF 80 140 ns 18.2 tf DO DO fall time CDO = 100 pF 50 100 ns 18.3 ten DO tri L DO enable time from tristate to low level CDO = 100 pF, Iload = 1 mA pull- up load to VCC 100 250 ns 18.4 tdis DO L tri DO disable time from low level to tristate CDO = 100 pF, Iload = 4 mA pull- up load to VCC 380 450 ns 18.5 ten DO tri H DO enable time from tristate to high level CDO =100 pF, Iload = -1 mA pull- down load to GND 100 250 ns 18.6 tdis DO H tri DO disable time from high level to tristate CDO = 100 pF, Iload = -4 mA pull-down load to GND 380 450 ns 18.7 td DO DO delay time VDO < 0.3 VCC, VDO > 0.7 VCC, CDO = 100 pF 50 250 ns Table 18. CSN timing Item Symbol Parameter Test condition Min. Typ. Max. Unit 19.1 tCSN_HI,stb Minimum CSN HI time, switching from standby mode Transfer of SPI-command to input register 20 50 μs 19.2 tCSN_HI,min Minimum CSN HI time, active mode Transfer of SPI-command to input register 24 μs |
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