MAX3491CPD+ Maxim Integrated Products, MAX3491CPD+ Datasheet - Page 12
![IC TXRX RS485/422 10MBPS 14DIP](/photos/6/57/65726/175-14-dip_sml.jpg)
MAX3491CPD+
Manufacturer Part Number
MAX3491CPD+
Description
IC TXRX RS485/422 10MBPS 14DIP
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet
1.MAX3485CSA.pdf
(16 pages)
Specifications of MAX3491CPD+
Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Through Hole
Package / Case
14-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3.3V-Powered, 10Mbps and Slew-Rate-Limited
True RS-485/RS-422 Transceivers
Figure 15. MAX3485/MAX3490/MAX3491 Driver Propagation
Delay
Figure 17. MAX3483/MAX3488 Driver Propagation Delay
Figure 19. MAX3483/MAX3488 System Differential Voltage at
125kHz Driving 4000 ft of Cable
12
V
2V/div
1V/div
1V/div
5V/div
2V/div
5V/div
2V/div
1V/div
1V/div
Y
______________________________________________________________________________________
- V
RO
DI
DI
DI
Y
Z
Z
Y
Z
20ns/div
1 s/div
2 s/div
Figure 16. MAX3485/MAX3490/MAX3491 Receiver
Propagation Delay Driven by External RS-485 Device
Figure 18. MAX3483/MAX3488 Receiver Propagation Delay
Figure 20. MAX3485/MAX3490/MAX3491 System Differential
Voltage at 125kHz Driving 4000 ft of Cable
1V/div
1V/div
2V/div
V
5V/div
2V/div
5V/div
1V/div
1V/div
2V/div
Y
RO
- V
RO
B
A
RO
DI
B
A
Z
20ns/div
2 s/div
1 s/div