LTC2856HMS8-2#TRPBF Linear Technology, LTC2856HMS8-2#TRPBF Datasheet - Page 8

• Manufacturer Part Number: LTC2856HMS8-2#TRPBF
• Description: IC TXRX RS485/RS422 8-MSOP
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC2856HMS8-2#TRPBF

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TEST CIRCUITS
LTC2857-1/LTC2857-2
LTC2858-1/LTC2858-2
FUNCTION TABLES
LTC2856-1, LTC2856-2
8
DE
LOGIC INPUTS
0
0
1
1
0V OR V
V
CC
DI = 0V OR V
V
OR 0V
±V
CM
±V
AB
AB
CC
RE
/2
/2
0
1
0
1
A
B
CC
RECEIVER
Transceive
Shutdown
Transmit
Receive
A
B
MODE
RE
RECEIVER
285678 F07a
RO
Figure 7. Receiver Enable/Disable Time Measurements
Figure 6. Receiver Propagation Delay Measurements
Driven
Driven
A, B
C
R
R
RO
L
IN
IN
R
L
285678 F06
C
V
OR
GND
L
CC
High-Z
High-Z
Driven
Driven
RO
LTC2858-1, LTC2858-2
LOGIC INPUTS
RO
RO
RE
DE
0
0
1
1
A-B
V
RO
V
V
V
0V
OH
0V
CC
CC
OL
–V
V
V
AB
AB
CC
0
V
RE
0
1
0
1
O
V
O
Transceive
Shutdown
Transmit
Receive
MODE
0
10%
t
t
t
t
ZHSR
ZLSR
ZLR
ZHR
90%
,
,
t
SKEWR
1/2 V
1/2 V
1/2 V
t
PLHR
t
CC
CC
CC
RR
A, B
= t
1/2 V
R
R
R
R
IN
IN
IN
IN
PLHR
CC
1/2 V
– t
PHLR
CC
t
t
LZR
HZR
High-Z
High-Z
Driven
Driven
Y, Z
90%
10%
t
PHLR
0.5V
0.5V
t
FR
285678 F06b
285678 F05b
High-Z
High-Z
Driven
Driven
RO
285678fe