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MAX481E Datasheet(PDF) 11 Page - Maxim Integrated Products

Part No. MAX481E
Description  ±15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX481E Datasheet(HTML) 11 Page - Maxim Integrated Products

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±15kV ESD-Protected, Slew-Rate-Limited,
Low-Power, RS-485/RS-422 Transceivers
______________________________________________________________________________________
11
DI
DE
3V
Y
Z
CL1
CL2
A
B
RO
RE
RDIFF
VID
OUTPUT
UNDER TEST
500
S1
S2
VCC
CL
Figure 10. Driver/Receiver Timing Test Circuit
Figure 11. Driver Timing Test Load
DI
3V
0V
Z
Y
VO
0V
-VO
VO
1.5V
tPLH
1/2 VO
10%
tR
90%
90%
tPHL
1.5V
1/2 VO
10%
tF
VDIFF = V (Y) - V (Z)
VDIFF
tSKEW = | tPLH - tPHL |
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
Y, Z
VOL
Y, Z
0V
1.5V
1.5V
VOL +0.5V
VOH -0.5V
2.3V
2.3V
tZL(SHDN), tZL
tLZ
tZH(SHDN), tZH
tHZ
DE
Figure 12. Driver Propagation Delays
Figure 13. Driver Enable and Disable Times (except MAX488E
and MAX490E)
VOH
VOL
VID
-VID
1.5V
0V
1.5V
OUTPUT
INPUT
0V
RO
A-B
tPLH
tPHL
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
VCC
RO
RO
0V
1.5V
1.5V
VOL + 0.5V
VOH - 0.5V
1.5V
1.5V
tZL(SHDN), tZL
tLZ
tZH(SHDN), tZH
tHZ
RE
Figure 14. Receiver Propagation Delays
Figure 15. Receiver Enable and Disable Times (except MAX488E
and MAX490E)


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