HWD1487 Просмотр технического описания (PDF) - Unspecified
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HWD1487 Datasheet PDF : 20 Pages
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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. HWD481/HWD485/HWD490/HWD491/HWD487
Receiver tPHL
B
500mV/div
VCC = 5V
TA = +25°C
A
2V/div
RO
20ns/div
Figure 16. HWD481/HWD485/HWD490/HWD491/HWD1487
Receiver tPLH
A
500mV/div
B
RO
2V/div
VCC = 5V
TA = +25°C
400ns/div
Figure 17. HWD483, HWD487–HWD489 Receiver tPHL
B
500mV/div
A
2V/div
RO
VCC = 5V
TA = +25°C
400ns/div
Figure 18. HWD483, HWD487–HWD489 Receiver tPLH
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