MAX1487(2003) Просмотр технического описания (PDF) - Maxim Integrated

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MAX1487
(Rev.:2003)

Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers

Maxim Integrated 

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

B

500mV/div

A

2V/div

RO

VCC = 5V

TA = +25°C

400ns/div

Figure 18. MAX483, MAX487–MAX489 Receiver tPLH

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