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ISL33334EIAZ-T Datasheet(PDF) 9 Page - Intersil Corporation |
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ISL33334EIAZ-T Datasheet(HTML) 9 Page - Intersil Corporation |
9 / 23 page ISL33334E, ISL33337E 9 FN8776.1 October 21, 2016 Submit Document Feedback NOTES: 10. 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. 11. Supply current specification is valid for loaded RS-485 (port 2) drivers when DE485 = 0V. 12. Applies to peak current. See “Typical Performance Curves on page 12” for more information. 13. A, B, RxIN defaults to RS-485 mode (>15kΩ) when the device is unpowered (VCC = 0V), or in SHDN. 14. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design. Electrical Specifications Test Conditions: VCC = 3.15V to 3.45V, C1 - C4 = 0.1µF; unless otherwise specified. Typicals are at VCC = 3.3V, TA = +25°C (Note 10). (Continued)Boldface limits apply across the operating temperature range, -40°C to +85°C. (Continued) PARAMETER SYMBOL TEST CONDITIONS TEMP (°C) MIN (Note 14)TYP MAX (Note 14)UNIT Test Circuits and Waveforms FIGURE 2. RS-485 DRIVER VOD AND VOC TEST CIRCUIT FIGURE 3A. TEST CIRCUIT FIGURE 3B. MEASUREMENT POINTS FIGURE 3. RS-485 DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES D DE485 DI VCC VOD VOC R R Z Y RD D DE485 DI VCC SIGNAL GENERATOR CL = 100pF RDIFF Z Y CL = 100pF OUT (Y) 3V 0V tPLH 50% 50% VOH VOL 50% 50% tPHL OUT (Z) tPHL VOH VOL 50% 50% tPLH DIFF OUT (Y - Z) tR +VOD -VOD 90% 90% tF 10% 10% DI SKEW = |tPLH (Y or Z) - tPHL (Z or Y)| 0V 0V tDHL tDLH |
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