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LT1237CNW Datasheet(PDF) 8 Page - Linear Technology

Part # LT1237CNW
Description  5V RS232 Transceiver with Advanced Power Management and One Receiver Active in Shutdown
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1237CNW Datasheet(HTML) 8 Page - Linear Technology

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LT1237
©LINEAR TECHNOLOGY CORPORATION 1992
1237fa LT/TP 0799 2K REV A • PRINTED IN USA
APPLICATI
TYPICAL
Typical Mouse Driving Application
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC
®485
Low Power RS485 Transceiver
LT1137A
3Dx/5Rx RS232 Transceiver
15kV ESD
LTC1387
RS232/RS485 Multiprotocol Transceiver
LT1780/LT1781
2Dx/2Rx RS232 Transceiver
15kV ESD
LT1785/LT1791
60V Fault Tolerant RS485 Transceiver
15kV ESD
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTIO
SW Package
28-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
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)
TYP
0.014 – 0.019
(0.356 – 0.482)
TYP
S28 (WIDE) 0996
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
25
26
11 12
22 21 20 19 18 17 16 15
23
24
14
13
27
28
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)
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
*
**
1237 TA03
5V VCC
1.0
µF
2
× 0.1µF
0.1
µF
DB9
LT1237
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DRIVER 1 OUT
RX1 IN
DRIVER 2 OUT
RX2 IN
RX3 IN
RX4 IN
DRIVER 3 OUT
RX5 IN (LOW-Q)
ON/OFF
28
27
26
25
24
23
22
21
20
19
18
17
16
15
2
× 0.1µF
DRIVER 1 IN
RX1 OUT
DRIVER 2 IN
RX2 OUT
RX3 OUT
RX4 OUT
DRIVER 3 IN
RX5 OUT (LOW-Q)
GND
DRIVER DISABLE
MOUSE
V
V+
LOGIC “0”
LOGIC “0”
MOUSE DATA
LOGIC “1”
DCD
DSR
RX
RTS
TX
CTS
DTR
RI
(1)
(9)
(5)
LOGIC
OPTICS
V+
V
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com


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