ST485BDR STMicroelectronics, ST485BDR Datasheet - Page 4

• Manufacturer Part Number: ST485BDR
• Description: IC TXRX 5V RS485/422 LP 8-SOIC
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST485BDR

• 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: 85 C
• Mounting Style: SMD/SMT
• Data Rate: 2.5 Mbps
• Interface: RS-422 or RS-485
• Minimum Operating Temperature: - 40 C
• Supply Current: 500 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3733-2

2
Table 3.
Note:
Table 4.
Note:
4/19
RE
RE
X
X
X
H
L
L
L
Truth tables
Truth table (driver)
X = Don’t care; Z = High impedance
Truth table (receiver)
X = Don’t care; Z = High impedance
Inputs
Inputs
DE
DE
H
H
L
L
L
L
L
Inputs open
≥
≤
+0.2V
A-B
-0.2V
DI
H
X
L
X
B
H
Z
L
Outputs
Outputs
RO
H
H
L
Z
A
H
L
Z