DS36C279TM datasheet(4/10 Pages) NSC

4 / 10 page

Switching Characteristics (Notes 5, 10) (Continued)

Over Supply Voltage and Operating Temperature ranges, unless otherwise specified

Symbol

Parameter

Conditions

Reference

Min

Typ

Max

Units

RECEIVER CHARACTERISTICS

Mode to Output Low

(Note 11)

Note 3: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices

should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation.

Note 4: Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground except VOD1 and VOD2.

Note 5: All typicals are given for: VCC = +5.0V, TA = + 25˚C.

Note 6: Delta |VOD2| and Delta |V OC| are changes in magnitude of VOD2 and VOC , respectively, that occur when input changes state.

Note 7: Threshold parameter limits specified as an algebraic value rather than by magnitude.

Note 8: Hysteresis defined as VHST =VTH −VTL.

Note 9: IIN includes the receiver input current and driver TRI-STATE leakage current.

Note 10: CL includes probe and jig capacitance.

Note 11: For enable from sleep mode delays DE = L and RE* = H for greater than 600 ns prior to test (device is in sleep mode).

Note 12: For complete details of test, see RS-485.

Parameter Measurement Information

DS012053-2

FIGURE 1. Driver V

OD2 and VOC

DS012053-17

FIGURE 2. Driver V

OD3

DS012053-3

FIGURE 3. Driver V

OH and VOL

DS012053-4

Vtest = −7V to +12V

FIGURE 4. Driver I

OSD

DS012053-5

FIGURE 5. Driver Differential Propagation Delay Test Circuit

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