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LT1237CNW Datasheet(PDF) 8 Page - Linear Technology |
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LT1237CNW Datasheet(HTML) 8 Page - Linear Technology |
8 / 8 page 8 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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