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SP3485 датащи(PDF) 5 Page - Shanghai Leiditech Electronic Technology Co., Ltd

номер детали SP3485
подробное описание детали  RS-485 RS422 Transceiver
PDF  9 Pages
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производитель  LEIDITECH [Shanghai Leiditech Electronic Technology Co., Ltd]
домашняя страница  http://www.leiditech.com
Logo LEIDITECH - Shanghai Leiditech Electronic Technology Co., Ltd

SP3485 датащи(HTML) 5 Page - Shanghai Leiditech Electronic Technology Co., Ltd

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Transmission characteristics
Unless otherwise specified, V DD = 5V 5% and Tamb = 25 °C
Features slope limiting
Drive input to
Output
tDPLH
RDIFF=54Ω，
CL1=CL2=100pF(2)
30
60
ns
Drive input to
Output
tDPHL
RDIFF=54Ω，
CL1=CL2=100pF(2)
30
60
ns
|tDPLH-tDPHL|
tDSKEW
RDIFF=54Ω，
CL1=CL2=100pF(2)
20
ns
Drive up and down
Time
tDR,tDF
RDIFF=54Ω，
CL1=CL2=100pF(2)
30
ns
Maximum data
transfer rate
fMAX
10
Mbps
Drive enable delay
tDZH
CL=100pF,S2 CLOSED(3)
70
ns
Drive enable delay
tDZL
CL=100pF,S1 CLOSED(3)
70
ns
Drive shutdown
delay
tDLZ
CL=15pF,S1 CLOSED(3)
70
ns
Drive shutdown
delay
tDHZ
CL=15pF,S2 CLOSED(3)
70
ns
Receiver input and
output
Delay
tRPLH
| VID|≥2.0V
Rise and fall time ≤ 15ns(4).
90
250
ns
Receiver input and
output
Delay
tRPHL
90
250
ns
|tRPLH-tRPHL|
tRSKD
| VID|≥2.0V
Rise and fall time ≤ 15ns(4).
30
ns
Receiver enable
delay
tRZL
CL=100pF,S1 CLOSED(5)
30
70
ns
Receiver enable
delay
tRZH
CL=100pF,S2 CLOSED(5)
30
70
ns
Receiver shutdown
delay
tRLZ
CL=100pF,S1 CLOSED(5)
30
70
ns
Receiver shutdown
delay
tRHZ
CL=100pF,S2 CLOSED(5)
30
70
ns
Shutdown mode
enable time
tSHDN
200
600
ns
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SP3485
www.leiditech.com
Rev 1.6 :01.01.2022
5/9
Notes：
(1) The test circuit is shown in Figure 1
(2) The test circuit is shown in Figure 2
(3) The test circuit is shown in Figure 3
(4) The test circuit is shown in Figure 4
(5) The test circuit is shown in Figure 5



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