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FDC37M81 датащи(PDF) 7 Page - SMSC Corporation |
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FDC37M81 датащи(HTML) 7 Page - SMSC Corporation |
7 / 198 page 7 DESCRIPTION OF PIN FUNCTIONS PIN No./QFP NAME TOTAL SYMBOL BUFFER TYPE PER FUNCTION (NOTE 1) 7,41, 60,76 Ground VSS 18 +5 Volt Standby Supply Voltage (Note 7) VTR FDD INTERFACE (14) 16 Read Disk Data 1 nRDATA IS 11 Write Gate 1 nWGATE (O24/OD24) 10 Write Disk Data 1 nWDATA (O24/OD24) 12 Head Select 1 nHDSEL (O24/OD24) 8 Step Direction 1 nDIR (O24/OD24) 9 Step Pulse 1 nSTEP (O24/OD24) 17 Disk Change 1 nDSKCHG IS 5 Drive Select 0 1 nDS0 (O24/OD24) 3 Motor On 0 1 nMTR0 (O24/OD24) 15 Write Protected 1 nWRTPRT IS 14 Track 0 1 nTRKO IS 13 Index Pulse Input 1 nINDEX IS 1 Drive Density Select 0 1 DRVDEN0 (O24/OD24) 2 Drive Density Select 1 1 DRVDEN1 (O24/OD24) SERIAL PORT 1 INTERFACE (8) 84 Receive Serial Data 1 1 RXD1 I 85 Transmit Serial Data 1 1 TXD1 O4 87 Request to Send 1/System Option (Note 6) 1 nRTS1/ SYSOPT O4/I 88 Clear to Send 1 1 nCTS1 I 89 Data Terminal Ready 1 1 nDTR1 O4 86 Data Set Ready 1 1 nDSR1 I 91 Data Carrier Detect 1 1 nDCD1 I 90 Ring Indicator 1 1 nRI1 I SERIAL PORT 2 INTERFACE (8) 95 Receive Serial Data 2/Infrared Rx 1 RXD2/IRRX I/I 96 Transmit Serial Data 2/Infrared Tx (Note 4) 1 TXD2/IRTX O24PD/ O24PD 98 Request to Send 2/Sys Addr 12 1 nRTS2/ SA12 O4/I |
Аналогичный номер детали - FDC37M81 |
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Аналогичное описание - FDC37M81 |
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