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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ISL32450EIBZ датащи(PDF) 9 Page - Intersil Corporation |
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ISL32450EIBZ датащи(HTML) 9 Page - Intersil Corporation |
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9 / 21 page  ISL32450E, ISL32452E, ISL32453E, ISL32455E, ISL32457E 9 FN7921.0 February 20, 2012 Receiver Skew |tPLH - tPHL|tSKD (Figure 7) Full - 4 20 ns Receiver Enable to Output Low tZL RL = 1kΩ, CL = 15pF, SW = VCC (Figure 8), (Note 13) Full - - 80 ns Receiver Enable to Output High tZH RL = 1kΩ, CL = 15pF, SW = GND (Figure 8), (Note 13) Full - - 80 ns Receiver Disable from Output Low tLZ RL = 1kΩ, CL = 15pF, SW = VCC (Figure 8) Full - - 80 ns Receiver Disable from Output High tHZ RL = 1kΩ, CL = 15pF, SW = GND (Figure 8) Full - - 80 ns Time to Shutdown tSHDN (Note 14) Full 60 160 600 ns Receiver Enable from Shutdown to Output High tZH(SHDN) RL = 1kΩ, CL = 15pF, SW = GND (Figure 8), (Notes 14, 16) Full - - 2500 ns Receiver Enable from Shutdown to Output Low tZL(SHDN) RL = 1kΩ, CL = 15pF, SW = VCC (Figure 8), (Notes 14, 16) Full - - 2500 ns NOTES: 9. All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise specified. 10. Supply current specification is valid for loaded drivers when DE = 0V. 11. Applies to peak current. See “Typical Performance Curves” beginning on page 14 for more information. 12. Keep RE = 0 to prevent the device from entering SHDN (does not apply to the ISL32457E). 13. The RE signal high time must be short enough (typically <100ns) to prevent the device from entering SHDN. 14. Transceivers are put into shutdown by bringing RE high and DE low. If the inputs are in this state for less than 60ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts are guaranteed to have entered shutdown. See “Low Power Shutdown Mode” on page 13. 15. Keep RE = VCC, and set the DE signal low time >600ns to ensure that the device enters SHDN. 16. Set the RE signal high time >600ns to ensure that the device enters SHDN. 17. Compliance to data sheet limits is assured by one or more methods: production test, characterization and/or design. 18. See “Caution” statement below the “Recommended Operating Conditions” on page 6. 19. Does not apply to the ISL32457E. The ISL32457E has no Rx enable function, and thus no SHDN function. Test Circuits and Waveforms FIGURE 3A. VOD AND VOC FIGURE 3B. VOD WITH COMMON MODE LOAD FIGURE 3. DC DRIVER TEST CIRCUITS Electrical Specifications Test Conditions: VCC = 3V to 3.6V and 4.5V to 5.5V, unless otherwise specified. Typicals are at the worst case of VCC =5V or VCC =3.3V, TA = +25°C (Note 9). Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) PARAMETER SYMBOL TEST CONDITIONS TEMP (°C) MIN (Note 17) TYP MAX (Note 17) UNITS D DE DI VCC VOD VOC RL/2 RL/2 Z Y D DE DI VOD 375Ω 375Ω Z Y VCM VCC RL/2 RL/2 |
Аналогичный номер детали - ISL32450EIBZ |
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Аналогичное описание - ISL32450EIBZ |
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