ST202EB datasheet(5/18 Pages) STMICROELECTRONICS | +/- 15 kV ESD protected 5 V RS-232 transceiver

5 page

ST202EB - ST202EC - ST232EB - ST232EC

Electrical characteristics

5/18

Electrical characteristics

Note:

All test versus GND.

Measured from 3 V to -3 V or from -3 V to 3 V

One transmitter output is loaded with RL = 3 kΩ to 7 kΩ, CL = 50 to 1000 pF

Table 4.

ESD performance: transmitter outputs, receiver inputs

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

ESD

ESD protection voltage

Human Body Model

± 15

ESD

ESD protection voltage

IEC 1000-4-2 (Contact Discharge)

± 6kV

ESD

ESD protection voltage

IEC 1000-4-2 (Air Discharge)

± 8kV

Table 5.

Electrical characteristics

(C1 - C4 = 0.1 µF for ST202E, C1 - C4 = 0.1 µF for ST232E, VCC = 5 V ± 10 %,

TA = -40 to 125 °C, unless otherwise specified. Typical values are referred to TA = 25 °C).

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

ISUPPLY

VCC power supply current

No Load, TA = 25°C

Table 6.

Transmitter electrical characteristics

(C1 - C4 = 0.1 µF, VCC = 5 V ± 10 %, TA = -40 to 85 °C, unless otherwise specified. Typical

values are referred to TA = 25 °C).

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

VTOUT

Output voltage swing

All Transmitter outputs are loaded

with 3 k

Ω to GND

± 5

± 9V

ITIL

Input leakage current

± 10

µA

VTIL

Input logic threshold low

0.8

VTIH

Input logic threshold high

SRT

Transition slew rate

TA = 25°C, VCC = 5 V RL = 3 to 7

Ω, CL = 50 to 1000 pF (1)

V/µs

Data rate

RL = 3 to 7 kΩ, CL = 50 to 1000 pF

one transmitter switching

230

400

kbits/s

RTOUT

Transmitter output resistance

VCC = V+ = V- = 0V VOUT = ± 2 V

300

ISC

Transmitter output short circuit

current

±10

±60

tDT

Transmitter propagation delay

RL = 3 to 7 kΩ, CL = 50 to 2500 pF

All transmitter loaded

2µA

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