ST3222ECTR Ver la hoja de datos (PDF) - STMicroelectronics

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ST3222ECTR

±15KV ESD-PROTECTED, 3 TO 5.5V, LOW POWER, UP TO 250KBPS, RS-232 DRIVERS AND RECEIVERS

STMicroelectronics 

ST3222E

TRANSMITTER ELECTRICAL CHARACTERISTICS

(C1 - C4 = 0.1µF VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.

Typical values are referred to TA = 25°C)

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

VTOUT Output Voltage Swing

All Transmitter outputs are loaded with

± 5 ± 5.4

V

3KΩ to GND

RTOUT Transmitter Output

VCC = V+ = V- = 0V

VOUT = ± 2V

300 10M

Ω

Resistance

ITSC Output Short Circuit Current

± 60

mA

ITOL Output Leakage Current

VCC = 0V or 3V to 3.6V VOUT = ± 12V

Transmitters Disable

± 25 µA

RECEIVER ELECTRICAL CHARACTERISTICS

(C1 - C4 = 0.1µF VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.

Typical values are referred to TA = 25°C)

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

25

V

VRIL Input Threshold Low

TA = 25°C VCC = 3.3V

0.6

1.2

V

TA = 25°C VCC = 5V

0.8

1.5

VRIH Input Threshold High

TA = 25°C VCC = 3.3V

1.5

2.4

V

TA = 25°C VCC = 5V

1.8

2.4

VRIHYS Input Hysteresis

0.5

V

RRIN Input Resistance

TA = 25°C

3

5

7

KΩ

VROL Output Voltage Low

IOUT = 1.6mA

0.4

V

VROH Output Voltage High

IOUT = -1mA

VCC-0.6 VCC-0.1

V

TIMING CHARACTERISTICS

(C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.

Typical values are referred to TA = 25°C)

Symbol

Parameter

Test Conditions

Min. Typ.

DR Data Transfer Rate

RL = 3KΩ CL2= 1000pF

250

one trasmitter switching

tPHLR Propagation Delay Input to RXIN to RXOUT

tPLHR Output

CL = 150pF

|tPHLT Transmitter Propagation

- tTHL| Delay Difference

(Note 1)

tOER Receiver Output Enable

Time

Normal Operation

tODR Receiver Output Disable

Time

Normal Operation

|tPHLR Receiver Propagation Delay

- tTHR| 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

6

CL = 150pF to 2500pF

4

(Note 1) Transmitter Skew is measured at the transmitter zero cross points

0.15

200

50

50

50

Max.

30

30

Unit

Kbps

µs

ns

ns

ns

ns

V/µs

V/µs

4/10

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