12
LTC1345
PART NUMBER DESCRIPTION COMMENTS
LTC1334 Single 5V RS232/RS485 Multiprotocol Transceiver Two RS485 Driver/Receiver or Four RS232 Driver/Receiver Pairs
LTC1343 Software-Selectable Multiprotocol Transceiver 4-Driver/4-Receiver for Data and Clock Signals
LTC1344/LTC1344A Software-Selectable Cable Terminator Perfect for Terminating the LTC1543 (Not Needed with LTC1546)
LTC1346 Dual Supply V.35 Transceiver 3-Driver/3-Receiver for Data and Clock Signals
LTC1387 RS232/RS485 Multiprotocol Transceiver One RS485 Driver/Receiver or Two RS232 Driver/Receiver Pairs
LTC1543 Software-Selectable Multiprotocol Transceiver Terminated with LTC1344A for Data and Clock Signals, Companion to
LTC1544 or LTC1545 for Control Signals
LTC1544 Software-Selectable Multiprotocol Transceiver Companion to LTC1546 or LTC1543 for Control Signals Including LL
LTC1545 Software-Selectable Multiprotocol Transceiver 5-Driver/5-Receiver Companion to LTC1546 or LTC1543
for Control Signals Including LL, TM and RL
LTC1546 Multiprotocol Transceiver with Termination Combines LTC1543 and LTC1344A Functions for Data and Clock Signals
PACKAGE DESCRIPTION
U
Dimensions in inches (millimeters) unless otherwise noted.
LINEAR TECHNOLOGY CORPORATION 1995
1345fa LT/TP 0400 2K REV A • PRINTED IN USA
SW Package
28-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
S28 (WIDE) 1098
0° – 8° TYP
NOTE 1
0.009 – 0.013
(0.229 – 0.330)
0.016 – 0.050
(0.406 – 1.270)
0.291 – 0.299**
(7.391 – 7.595)
×
45
°
0.010 – 0.029
(0.254 – 0.737)
0.037 – 0.045
(0.940 – 1.143)
0.004 – 0.012
(0.102 – 0.305)
0.093 – 0.104
(2.362 – 2.642)
0.050
(1.270)
BSC
0.014 – 0.019
(0.356 – 0.482)
TYP
NOTE 1
0.697 – 0.712*
(17.70 – 18.08)
1
23
4
5
6
78
0.394 – 0.419
(10.007 – 10.643)
910
2526
11 12
22 21 20 19 18
17
16 152324
1413
2728
NOTE:
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
*
**
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
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