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STR485E 数据表(PDF) 13 Page - STMicroelectronics

部件名 STR485E
功能描述  3.3 V RS485 compatible with 1.8 V I/Os and selectable speed 20 Mbps or 250kbps
PDF  26 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STR485E 数据表(HTML) 13 Page - STMicroelectronics

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Figure 11. Receiver output rise and fall times and propagation delay
0V
VL
A
RE
VO
50%
tPLH
tPHL
VI
VO
10%
90%
tr
tf
VL
1V5
B
VI
0 V
VOL
VOH
50%
90%
10%
Figure 12. Receiver enable/disable times with driver enabled
1 kΩ ±1%
CL=15 pF±20%
VL
VI
50 Ω
50%
tPZH(1)
VI
VO
VL
50%
VOL
0V
VL
≈ 0V
tPHZ
90%
VO
50%
50%
tPZL(1)
10%
tPLZ
VOH
D at VL
S1 to GND
D at OV
S1 to VL
STR485E
Test circuits and typical characteristics
DS13051 - Rev 3
page 13/26



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