ST485CDR STMicroelectronics, ST485CDR Datasheet - Page 2

• Manufacturer Part Number: ST485CDR
• Description: IC TXRX 5V RS485/422 LP 8-SOIC
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST485CDR

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Maximum Operating Temperature: 70 C
• Mounting Style: SMD/SMT
• Data Rate: 2.5 Mbps
• Interface: RS-422 or RS-485
• Minimum Operating Temperature: 0 C
• Supply Current: 500 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3734-2

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