ST232A 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

ST232A

Very high speed, ultra low power consumption 5V Powered RS-232 drivers and receivers

STMicroelectronics 

Electrical characteristics

ST232A

Table 5.

Receiver electrical characteristics

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

values are referred to TA = 25°C).

Symbol

Parameter

Test

Min. Typ. Max. Unit

VRIN

Receiver input voltage

operating range

RRIN RS-232 Input resistance

TA = 25°C

VRIL

RS-232 Input threshold low

VRIH RS-232 Input threshold high

VRIHYS RS-232 Input hysteresis

VCC = 5V

VROL TTL/CMOS Output voltage low IOUT = 3.2mA (to VCC)

VROH TTL/CMOS Output voltage high IOUT = -1mA (to GND)

ISCR

tDR

Receiver output short circuit

current

Propagation delay time

to GND

to VCC

CL = 150pF (1)

1. RS-232 in to TTL-CMOS out (from 50% to 50%)

-30

30

V

3

5

7

KΩ

0.8

1.3

V

1.8

2.4

V

0.2

0.5

1

V

0.2

0.4

V

3.5 VCC-0.2

V

2

10

mA

10

30

0.1

0.5 µs

6/19

Share Link: