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MAX1487CSA Datasheet, PDF (12/17 Pages) Maxim Integrated Products – Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers
MAX481/MAX483/MAX485/
MAX487–MAX491/MAX1487
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
TTL IN
tR, tF < 6ns
100pF
Z
D
Y
R = 54Ω
100pF
B
R
A
RECEIVER
OUT
Figure 14. Receiver Propagation Delay Test Circuit
A
500mV/div
B
RO
2V/div
VCC = 5V
TA = +25°C
20ns/div
Figure 15. MAX481/MAX485/MAX490/MAX491/MAX1487
Receiver tPHL
B
500mV/div
VCC = 5V
TA = +25°C
A
2V/div
RO
20ns/div
Figure 16. MAX481/MAX485/MAX490/MAX491/MAX1487
Receiver tPLH
A
500mV/div
B
RO
2V/div
VCC = 5V
TA = +25°C
400ns/div
Figure 17. MAX483, MAX487–MAX489 Receiver tPHL
12
B
500mV/div
A
2V/div
RO
VCC = 5V
TA = +25°C
400ns/div
Figure 18. MAX483, MAX487–MAX489 Receiver tPLH
Maxim Integrated