ST3232BDR 데이터 시트보기 (PDF) - STMicroelectronics

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ST3232BDR

3 to 5.5 V, low power, up to 400 kbps RS-232 drivers and receivers

STMicroelectronics 

Electrical characteristics

ST3232B - ST3232C

Table 8.

Symbol

Timing characteristics (C1 - C4 = 0.1 µF tested at 3.3 V ± 10 %, 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

DR Data transfer rate

RL = 3kΩ, CL2= 1000pF

one transmitter switching

300 400

kbps

tPHLR Propagation delay input to

tPLHR output

RXIN = RXOUT, CL = 150pF

|tPHLT Transmitter propagation

- tTHL| delay difference

(Note 1)

|tPHLR Receiver propagation delay

- tTHR| difference

SRT Transition slew rate

TA = 25°C RL = 3kΩ to 7kΩ VCC = 3.3V

measured from +3V to -3V or -3V to +3V

CL = 150pF to 1000pF

6

CL = 150pF to 2500pF

4

0.2

µs

100

ns

50

ns

30 V/µs

30 V/µs

Note: 1 Transmitter skew is measured at the transmitter zero cross points.

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