DS14C232ESLASH883 datasheet(3/12 Pages) NSC

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Switching Characteristics

Over recommended operating conditions, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

DRIVER CHARACTERISTICS

PLH

Propagation Delay Low to

High

L = 3kΩ

L = 50 pF

Figure 1

and

Figure 2

1.0

4.0

µs

PHL

Propagation Delay High to

Low

1.0

4.0

µs

Skew |t

PLH −tPHL|

0.1

1.0

µs

SR1

Output Slew Rate

L = 3kΩ to7kΩ,CL =

50 pF

(Note 7)

4.0

V/µs

SR2

Output Slew Rate

L = 3kΩ,CL = 2500 pF

4.5

V/µs

RECEIVER CHARACTERISTICS

PLH

Propagation Delay Low to

High

Input Pulse Width > 10 µs

2.9

6.5

µs

PHL

Propagation Delay High to

Low

L = 50 pF

2.5

6.5

µs

Skew |t

PLH −tPHL|(Figures 3, 4)

0.4

2.0

µs

Noise Pulse Width

Rejected

(

Figures 3, 4)

0.7

0.5

µs

Note 1: “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 tables of “Electrical Characteristics” specify conditions for device operation.

Note 2: Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground unless otherwise speci-

fied.

Note 3: IOS+ and IOS− values are for one output at a time. If more than one output is shorted simultaneously, the device power dissipation may be exceeded.

Note 4: Receiver AC input waveform for test purposes: tr = tf = 200 ns, VIH = 3V, VIL = −3V, f = 30 kHz.

Note 5: All typicals are given for VCC = 5.0V.

Note 6: Ratings apply to ambient temperature at +25˚C. Above this temperature derate: N Package 15.6 mW/˚C, and M Package 10.6 mW/˚C.

Note 7: Slew rate is defined as

∆V/∆t, measured between ±3V level.

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