8785 datasheet(4/13 Pages) STMICROELECTRONICS

4 / 13 page

ST3237E

4/13

ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS

ELECTRICAL CHARACTERISTICS

(C1 -C4 =0.1µF, VCC =3V to5.5V, TA = -40 to 85°C, unless otherwise specified.

Typical values are referred to TA =25°C)

LOGIC INPUT ELECTRICAL CHARACTERISTICS

(C1 -C4 =0.1µF, VCC =3V to5.5V, TA = -40 to 85°C, unless otherwise specified.

Typical values are referred to TA =25°C)

Note 1: Transmitter input hysteresis is typically 250mV

TRANSMITTER ELECTRICAL CHARACTERISTICS

(C1 -C4 =0.1µF tested at 3.3V±10%, 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

ESD

ESD Protection Voltage

Human Body Model

±15

ESD

ESD Protection Voltage

IEC-1000-4-2 Contact Discharge

±8kV

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

ISUPPLY VCC Power Supply Current SHDN=VCC

No Load

0.3

ISHDN

Shutdown Supply Current

SHDN=GND VT_IN=GND or VCC

µA

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VTIL

Input Logic Threshold Low

(Note 1)

T-IN, VHSCI, EN,SHDN

0.8

VTIH

Input Logic Threshold High

T-IN, VHSCI, EN,SHDN

VCC = 3.3V

VCC =5V

2.4

IIL

Input Leakage Current

T-IN, VHSCI, EN,SHDN

± 1.0

µA

VHYS

Transmitter Input

Hysteresis

0.25

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VTOUT Output Voltage Swing

All Transmitter outputs are loaded with

Ω to GND

± 5

± 5.4

RTOUT Transmitter Output

Resistance

VCC =0V

VOUT = ± 2V

300

10M

Ω

ISC

Output Short Circuit Current

± 60

ITOL

Output Leakage Current

VCC = 0V or 3.3V to 5.5V VOUT = ± 12V

Transmitters Disable

± 25

µA

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