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80387DXRPQS Datasheet(PDF) 2 Page - Maxwell Technologies |
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80387DXRPQS Datasheet(HTML) 2 Page - Maxwell Technologies |
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2 / 17 page  2 05.07.02 REV 1 All data sheets are subject to change without notice ©2002 Maxwell Technologies All rights reserved. Math Coprocessor 80387DX TABLE 1. PINOUT DESCRIPTION PIN SYMBOL DESCRIPTION 1, 12, 19, 21, 35, 49, 53, 56 V SS Ground 2, 13, 20, 32, 36, 39, 52, 68 V CC Positive Power Supply 3-11, 18, 22-31, 33, 34, 37, 38, 40, 41, 64-67 D4-D12, D15, D16-25, D26, D27, D28, D29, D30, D31, D0-D3 Data Bus 42 CKM Clock Mode 43 386CLK2 386 CPU Clock 2 44 387CLK2 387 MCP Clock 2 45 RESETIN System Reset 46 NC Not Connected 47 59 Tie High Tie High 48 READY Bus Ready Input 50 CMD0 Command 51 ADS Address Strobe 54 NPS2 MCP Select #2 55 NPS1 MCP Select #1 57 W/R Write/Read 58 STEN Status Enable 60 READYO Ready Output 61 BUSY Busy Status 62 ERROR Error Status 63 PEREQ Processor Extension Request TABLE 2. ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL MIN MAX UNIT Voltage, any pin, with respect to Ground V CC -0.5 V CC+0.5 V Power Dissipation P D -- 1.5 W Storage Temperature Range T S -65 150 °C Operating Temperature Range T A -55 125 °C Lead Temperature (soldering 10 seconds) -- 260 °C |
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