ST485B STMICROELECTRONICS [STMicroelectronics], ST485B Datasheet - Page 2

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ST485B

Manufacturer Part Number
ST485B
Description
Low power RS-485/RS-422 transceiver
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet

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Contents
1
2
3
4
5
6
7
2/19
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
Truth tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1
4.2
Test circuit and typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Driver switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Receiver switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

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