LTC2844_15 Datasheet, PDF (1/20 Pages) Linear Technology – 3.3V Software-Selectable Multiprotocol Transceiver

LTC2844
3.3V Software-Selectable
Multiprotocol Transceiver
FEATURES
s _{Software-Selectable Transceiver Supports:}
RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21
s _{Operates from Single 3.3V Supply with LTC2846}
s _{TUV Rheinland of North America Inc. Certified NET1,}
NET2 and TBR2 Compliant,
Report No.: TBR2/051501/02
s _{Complete DTE or DCE Port with LTC2846}
s _{28-Lead SSOP Surface Mount Package}
U
APPLICATIO S
s _{Data Networking}
s _{CSU and DSU}
s _{Data Routers}
DESCRIPTIO
The LTC^®2844 is a 4-driver/4-receiver multiprotocol trans-
ceiver. The LTC2844 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 LTC2844 operates from a 3.3V supply and supplies
provided by the LTC2846. The part is available in a 28-lead
SSOP surface mount package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
DTE or DCE Multiprotocol Serial Interface with DB-25 Connector
LL CTS DSR
DCD DTR RTS
RXD RXC
TXC SCTE TXD
LTC2844
D4
R4 R3 R2 R1
D3 D2 D1
LTC2846
D3
D2
D1
R3
R2
R1
T
T
T
T
T
18 13 5 22 6
10 8 23 20 19 4 1 7 16 3 9 17
12 15 11 24 14 2
DB-25 CONNECTOR
2844 TA01
sn2844 2844fs
1