ST3222BD datasheet(4/9 Pages) STMICROELECTRONICS

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ST3222

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RECEIVER ELECTRICAL CHARACTERISTICS

(C1 -C4 =0.1µFVCC =3V to3.6V, TA = -40 to 85°C, unless otherwise specified.

Typical values are referred to TA =25°C)

TIMING CHARACTERISTICS

(C1 -C4 =0.1µF, VCC =3V to3.6V, TA = -40 to 85°C, unless otherwise specified.

Typical values are referred to TA =25°C)

Transmitter Skew is measured at the transmitter zero cross points

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

IOL

Output Leakage Current

R-OUT, EN =VCC, Receiver Disabled

± 0.05

± 10

µA

VRIN

Receiver Input Voltage

Operating Range

-25

VRIL

Input Threshold Low

TA = 25°C

VCC = 3.3V

0.6

1.2

VRIH

Input Threshold High

TA = 25°C

VCC = 3.3V

1.5

2.4

VRIHYS Input Hysteresis

0.5

RRIN

Input Resistance

TA = 25°C

Ω

VROL

TTL/CMOS Output Voltage

Low

IOUT = 1.6mA

0.4

VROH

TTL/CMOS Output Voltage

High

IOUT = -1mA

VCC-0.6 VCC-0.1

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Data Transfer Rate

RL =3KΩ

CL2= 1000pF

one trasmitter switching

240

400

Kbps

tPHLR

tPLHR

Propagation Delay Input to

Output

RXIN to RXOUT

CL = 150pF

0.2

µs

|tPHLT

-tTHL|

Transmitter Propagation

Delay Difference

(Note 1)

100

tOER

Receiver Output Enable

Time

Normal Operation

200

tODR

Receiver Output Disable

Time

Normal Operation

200

|tPHLR

-tTHR|

Receiver Propagation Delay

Difference

SRT

Trnasition Slew Rate

TA = 25°C RL =3KΩ to 7KΩ VCC = 3.3V

measured from +3V to -3V or -3V to +3V

CL = 150pF to 1000pF

CL = 150pF to 2500pF

µs

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