ST3222EB 데이터 시트보기 (PDF) - STMicroelectronics

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ST3222EB

± 15 kV ESD protected, 3 to 5.5 V low power, up to 250 Kbps, RS-232 drivers and receivers

STMicroelectronics 

ST3222E

3

Electrical characteristics

Electrical characteristics

Table 6.

Symbol

Electrical characteristics (C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 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 VCC power supply current No load, SHDN = VCC, TA = 25°C

ISHDN Shutdown supply current No load, SHDN = VCC, TA = 25°C

0.3

1

mA

1

10

µA

Table 7.

Symbol

Logic input electrical characteristics (C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 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: 1)

Input logic threshold high

Transmitter input

hysteresis

VCC = 3.3 V

VCC = 5 V

Input leakage current

T-IN, EN, SHDN

0.8

V

2

V

2.4

0.25

V

± 0.01 ± 1 µA

Note: 1 Transmitter input hysteresis is typically 250 mV

Table 8.

Symbol

Transmitter electrical characteristics (C1 - C4 = 0.1 µF VCC = 3 V to 5.5 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

3 KΩ to GND

±5

± 5.4

V

RTOUT

Transmitter output

resistance

VCC = V+ = V- = 0 V, VOUT = ± 2 V

300 10M

Ω

ITSC

Output short circuit

current

± 60

mA

ITOL

Output leakage current

VCC = 0 or 3 V to 3.6 V, VOUT = ± 12 V

Transmitters disable

± 25 µA

5/15

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