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LTC2845IUHF#TRPBF

Description
IC TXRX 3.3V MULTIPROTOCOL 38QFN
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size272KB,20 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC2845IUHF#TRPBF Overview

IC TXRX 3.3V MULTIPROTOCOL 38QFN

LTC2845IUHF#TRPBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeQFN
package instructionVQCCN, LCC38,.2X.28,20
Contacts38
Manufacturer packaging codeUHF
Reach Compliance Codecompliant
ECCN codeEAR99
Differential outputYES
Number of drives5
Input propertiesDIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-232; V.10; V.11; V.28; V.35; V.36; X.21; EIA-422; EIA-423; EIA-449; EIA-530; EIA-530-A
JESD-30 codeR-PQCC-N38
JESD-609 codee3
length7 mm
Humidity sensitivity level1
Nominal negative supply voltage-5.5 V
Number of functions5
Number of terminals38
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Minimum output swing5 V
Maximum output low current0.0016 A
Package body materialPLASTIC/EPOXY
encapsulated codeVQCCN
Encapsulate equivalent codeLCC38,.2X.28,20
Package shapeRECTANGULAR
Package formCHIP CARRIER, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)250
power supply5,8,-5.5/-7 V
Certification statusNot Qualified
Maximum receive delay500 ns
Number of receiver bits5
Maximum seat height0.8 mm
Nominal supply voltage5 V
Supply voltage1-Nom8 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
maximum transmission delay2500 ns
width5 mm
LTC2845
3.3V Software-Selectable
Multiprotocol Transceiver
FEATURES
s
s
DESCRIPTIO
s
s
s
Software-Selectable Transceiver Supports:
RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21
Operates from Single 3.3V Supply with LTC2846 or
a Single 5V Supply with 3.3V Logic with LTC2847
TUV Rheinland of North America Inc. Certified NET1,
NET2 and TBR2 Compliant,
Report No.: TBR2/050101/02
Complete DTE or DCE Port with LTC2846 or LTC2847
Available in a 36-Lead Narrow (0.209") SSOP and
38-Lead (7mm x 5mm) QFN package
The LTC
®
2845 is a 5-driver/5-receiver multiprotocol trans-
ceiver. The LTC2845 and LTC2846 form the core of a
complete software-selectable DTE or DCE interface port that
supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36
or X.21 protocols.
The LTC2845 operates from a 3.3V supply and supplies
provided by the LTC2846. This part is available in a 36-lead
SSOP and 38-lead (7mm x 5mm) QFN package. The LTC2845
and LTC2847 in QFN packages offer the smallest multiprotocol
serial port available.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
Data Networking
CSU and DSU
Data Routers
TYPICAL APPLICATIO
DTE or DCE Multiprotocol Serial Interface with DB-25 Connector
RL
TM
RI
LL
CTS
DSR
DCD
DTR
RTS
RXD
RXC
TXC
SCTE
TXD
LTC2845
D5
R5
R4
D4
D3
R3
R2
R1
D2
D1
R3
R2
R1
T
T
21
RL A (140)
25
TM A (142)
*
RI A (125)
18 13 5
LL A (141)
CTS B
CTS A (106)
DSR B
22 6
DSR A (107)
10 8
DCD B
DCD A (109)
23 20 19 4
DTR B
DTR A (108)
RTS B
RTS A (105)
SHIELD (101)
1
SG (102)
7
16
RXD B
3
RXD A (104)
9
RXC B
17
RXC A (115)
DB-25 CONNECTOR
U
LTC2846
D3
D2
D1
T
T
T
12
TXC B
TXC A (114)
U
U
15 11
SCTE B
SCTE A (113)
24 14
TXD B
2
TXD A (103)
*OPTIONAL
2845 TA01
sn2845 2845fs
1
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