LTC2856IMS8-2#TRPBF Linear Technology, LTC2856IMS8-2#TRPBF Datasheet - Page 10
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LTC2856IMS8-2#TRPBF
Manufacturer Part Number
LTC2856IMS8-2#TRPBF
Description
IC TXRX RS485/RS422 8-MSOP
Manufacturer
Linear Technology
Type
Transceiverr
Datasheet
1.LTC2856CMS8-2PBF.pdf
(20 pages)
Specifications of LTC2856IMS8-2#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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
PIN FUNCTIONS
LTC2857-1/LTC2857-2
LTC2858-1/LTC2858-2
10
PIN NAME
GND
V
RO
RE
DE
DI
Y
Z
B
A
CC
LTC2856-1
LTC2856-2
5/9*
1
2
3
4
7
6
8
PIN NUMBER
LTC2857-1
LTC2857-2
4/9*
2
3
5
6
7
8
1
LTC2858-1
LTC2858-2
5/11*
10
1
2
3
4
6
7
8
9
DESCRIPTION
Receiver Output. If the receiver output is enabled (RE low) and A > B by 200mV,
then RO will be high. If A < B by 200mV, then RO will be low. If the receiver
inputs are open, shorted or terminated without a valid signal, RO will be high.
Receiver Enable. A low enables the receiver. A high input forces the receiver
output into a high impedance state.
Driver Enable. A high on DE enables the driver. A low input will force the driver
outputs into a high impedance. If RE is high with DE low, the part will enter a
low power shutdown state.
Driver Input. If the driver outputs are enabled (DE high), then a low on DI forces
the driver positive output low and negative output high. A high on DI, with
the driver outputs enabled, forces the driver positive output high and negative
output low.
Ground. *The Exposed Pad on the DFN packages should be connected to
ground.
Noninverting Driver Output for the LTC2857-1, LTC2857-2, LTC2858-1 and
LTC2858-2. High impedance when the driver is disabled (LTC2858-1) or
unpowered.
Inverting Driver Output for the LTC2857-1, LTC2857-2, LTC2858-1 and
LTC2858-2. High impedance when the driver is disabled (LTC2858-1) or
unpowered.
Inverting Receiver Input (and Inverting Driver Output for the LTC2856-1 and
LTC2856-2). Impedance is > 96kΩ in receive mode or unpowered.
Noninverting Receiver Input (and Noninverting Driver Output for the LTC2856-1
and LTC2856-2). Impedance is > 96kΩ in receive mode or unpowered.
Positive Supply. 4.5V < V
CC
< 5.5V. Bypass with a 0.1μF ceramic capacitor.
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