DS14C335 datasheet(3/9 Pages) NSC

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Electrical Characteristics (Notes 2, 3) (Continued)

Over recommended operating conditions, SD = 0.8V, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

RECEIVER CHARACTERISTICS (Note 4)

R5, 2.0V

≤ SD ≤ 5.5V

2.0

2.8

Input Low Threshold

Voltage

R1–R5, SD = 0.8V

0.4

1.1

R5, 2.0V

≤ SD ≤ 5.5V

0.1

0.5

Hysteresis

300

Input Resistance

IN = ±3V to ±15V

3.0

3.8

7.0

Ω

Input Current

IN = +15V

2.14

5.0

IN = +3V

0.43

1.0

IN = −3V

−1.0

−0.43

IN = −15V

−5.0

−2.14

High Level Output

Voltage

IN = −3V, IOH = −1 mA

2.4

3.1

IN = −3V, IOH = −100 µA

2.8

3.28

Low Level Output

Voltage

IN = +3V, IOL = +2 mA

0.23

0.4

Switching Characteristics (Note 2)

Over recommended operating conditions, SD = 0.8V, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

DRIVER CHARACTERISTICS

PLH

Propagation Delay LOW to

HIGH

L =3 kΩ

L =50 pF

(

Figures 1, 2)

0.1

0.6

1.0

µs

PHL

Propagation Delay HIGH to

LOW

0.1

0.6

1.0

µs

Skew |t

PLH–tPHL|

0.2

µs

SR1

Output Slew Rate

L =3 kΩ to7kΩ,CL = 50pF(Figure 2)

V/µs

SR2

Output Slew Rate

L =3 kΩ,CL = 2500 pF (Figure 2)

V/µs

PLS

Propagation Delay LOW to SD

(

Figures 5, 6)

L =3 kΩ

L =50 pF

0.48

PSL

Propagation Delay SD to LOW

1.88

PHS

Propagation Delay HIGH to SD

0.62

PSH

Propagation Delay SD to HIGH

1.03

RECEIVER CHARACTERISTICS

PLH

Propagation Delay LOW to

HIGH

L =50 pF

(

Figures 3, 3)

0.1

0.4

1.0

µs

PHL

Propagation Delay HIGH to

LOW

0.1

0.6

1.0

µs

Skew |t

PLH–tPHL|

0.2

0.8

µs

PLS

Propagation Delay LOW to SD

(

Figures 7, 8)

L =1 kΩ

L =50 pF

R1–R4 Only

0.13

µs

PSL

Propagation Delay SD to LOW

1.0

µs

PHS

Propagation Delay HIGH to SD

0.19

µs

PSH

Propagation Delay SD to HIGH

0.58

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: Typical values are given for VCC = 3.3V and TA = +25˚C.

Note 3: 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 4: Receiver characteristics are guaranteed for SD = 0.8V. When SD = 2.0V, receiver five (R5) is active and meets receiver parameters in SHUTDOWN (SD)

mode, unless otherwise specified.

Note 5: Generator characteristics for driver input: f = 64 kHz (128 kbits/sec), tr =tf < 10 ns, VIH =3V, VIL = 0V, duty cycle = 50%.

Note 6: Generator characteristics for receiver input: f = 64 kHz (128 kbits/sec), tr =tf = 200 ns, VIH =3V, VIL = −3V, duty cycle = 50%.

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