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ST3243B データシート(PDF) 8 Page - STMicroelectronics

部品番号 ST3243B
部品情報  3 to 5.5 V, 400 Kbps, RS-232 transceiver with auto-power-down
PDF  22 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST3243B データシート(HTML) 8 Page - STMicroelectronics

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Electrical characteristics
ST3243B - ST3243C
8/22
Table 10.
Timing 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
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
DR
Maximum data rate
RL = 3KΩ, CL= 1000pF
one transmitter switching
250
400
kbps
tPHL
tPLH
Receiver propagation delay RIN to ROUT, CL = 150pF
0.15
µs
tT_SKEW Transmitter skew
100
ns
tR_SKEW Receiver skew
50
ns
tINVH
Receiver positive or
negative threshold to
INVALID HIGH
1ms
tINVL
Receiver positive or
negative threshold to
INVALID LOW
30
ms
SRT
Transition slew rate
TA = 25°C RL = 3K 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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