ST3222CTR(2008) Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

ST3222CTR
(Rev.:2008)

3 to 3.6 V, low power, up to 400 kbps RS-232 drivers and receivers

STMicroelectronics 

ST3222B - ST3222C

3

Electrical characteristics

Electrical characteristics

Table 4.

Symbol

Electrical characteristics (C1 - C4 = 0.1 µF, VCC = 3 V to 3.6 V, TA = -40 to 85 °C, unless

otherwise specified. Typical values are referred to TA = 25 °C)

Parameter

Test conditions

Min. Typ. Max. Unit

ISUPPLY

ISHDN

VCC power supply

current

SHUTDOWN supply

current

No load VCC = 3.3V

SHDN=VCC

No load VCC = 3.3V

SHDN=VCC

TA = 25°C

TA = 25°C

0.3

1

mA

1

10

µA

Table 5.

Symbol

Logic input electrical characteristics (C1 - C4 = 0.1 µF, VC = 3 V to 3.6 V,

TA = - 40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C)

Parameter

Test conditions

Min. Typ. Max. Unit

VIL

VIH

VHYS

IIL

Input logic threshold low T-IN, EN, SHDN (Note:)

Input logic threshold

high

VCC = 3.3V

Transmitter input

hysteresis

Input leakage current T-IN, EN, SHDN

0.8

V

2

V

0.5

V

± 0.01 ± 1 µA

Note:

Transmitter input hysteresis is typically 250 mV

Table 6.

Symbol

Transmitter electrical characteristics (C1 - C4 = 0.1 µA VCC = 3 V to 3.6 V,

TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C)

Parameter

Test conditions

Min. Typ. Max. Unit

VTOUT Output voltage swing

All transmitter outputs are loaded with

3kΩ to GND

± 5 ± 5.4

V

RTOUT

Transmitter output

resistance

VCC = V+ = V- = 0V, VOUT = ± 2V

300 10M

Ω

ITSC

Output short circuit

current

ITOL

Output leakage current

VCC = 0V or 3V to 3.6V, VOUT = ± 12V

Transmitters disable

± 60 mA

± 25 µA

5/13

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