DS36C280TN datasheet(4/10 Pages) NSC

Part #	DS36C280TN

Description	Slew Rate Controlled CMOS EIA-RS-485 Transceiver

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Manufacturer	NSC [National Semiconductor (TI)]

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Switching Characteristics (Notes 4, 9, 11) (Continued)

Note 6: Threshold parameter limits specified as an algebraic value rather than by magnitude.

Note 7: Hysteresis defined as VHST =VTH −VTL.

Note 8: IIN includes the receiver input current and driver TRI-STATE leakage current.

Note 9: CL includes probe and jig capacitance.

Note 10: For complete details of test, see RS-485.

Note 11: SR = GND for all Switching Characteristics unless otherwise specified.

Parameter Measurement Information

DS012052-2

FIGURE 1. Driver V

OD2 and VOC

DS012052-18

FIGURE 2. Driver V

OD3

DS012052-3

FIGURE 3. Driver V

OH and VOL

DS012052-4

Vtest = −7V to +12V

FIGURE 4. Driver I

OSD

DS012052-5

FIGURE 5. Driver Differential

Propagation Delay Test Circuit

DS012052-6

FIGURE 6. Driver Differential Propagation Delays

and Differential Rise and Fall Times

DS012052-7

FIGURE 7. TRI-STATE Test Circuit (t

PZH ,tPHZ)

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