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ST3232EBTR Scheda tecnica(PDF) 6 Page - STMicroelectronics

Il numero della parte ST3232EBTR
Spiegazioni elettronici  ±15kV ESD-Protection, 3 to 5.5V, low power, up to 250KBPS, RS-232 drivers and receivers
PDF  20 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST3232EBTR Scheda tecnica(HTML) 6 Page - STMicroelectronics

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Electrical characteristics
ST3232E
6/20
Note:
1
Transmitter Skew is measured at the transmitter zero cross points
Table 6.
Receiver (C1 - C4 = 0.1µF tested at 3.3V±10%, VCC = 3V to 5.5V, TA = -40 to 85°C, unless
otherwise specified. Typical values are referred to TA = 25°C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VRIN
Receiver input voltage operating
range
-25
25
V
VRIL
RS-232 Input threshold low
TA = 25°C, VCC = 3.3V
0.6
1.1
V
TA = 25°C, VCC = 5V
0.8
1.5
VRIH
RS-232 Input threshold high
TA = 25°C, VCC = 3.3V
1.4
2.4
V
TA = 25°C, VCC = 5V
1.8
2.4
VRIHYS
Input hysteresis
0.5
V
RRIN
Input resistance
TA = 25°C
3
5
7
k
Ω
VROL
TTL/CMOS Output voltage low
IOUT = 1.6mA
0.4
V
VROH
TTL/CMOS Output voltage high
IOUT = -1mA
VCC-0.6
VCC-0.1
V
Table 7.
Timing characteristics (C1 - C4 = 0.1µF tested at 3.3V±10%, VCC = 3V to 5.5V, TA = -40 to
85°C, unless otherwise specified. Typical values are referred to TA = 25°C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
DR
Data transfer rate
RL = 3KΩ, CL2= 1000pF
one transmitter switching
250
Kbps
tPHLR
tPLHR
Propagation delay input to
output
RXIN = RXOUT, CL = 150pF
0.15
µs
tOER
Receiver output enable time Normal Operation
50
ns
tODR
Receiver output disable time Normal Operation
50
ns
|tPHLT
- tTHL|
Transmitter propagation
delay difference
(
Note 1)
200
ns
|tPHLR
- tTHR|
Receiver propagation delay
difference
50
ns
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
CL = 150pF to 2500pF
6
4
30
30
V/
µs
V/
µs



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