P89C51RB2/P89C51RC2/P89C51RD2 80C51 8-bit Flash ...

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Philips Semiconductors80C51 8-bit Flash microcontroller family16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAMPreliminary specificationP89C51RB2/P89C51RC2/P89C51RD2BLOCK DIAGRAMP0.0–P0.7P2.0–P2.7PORT 0DRIVERSV CCV SSPORT 2DRIVERSRAM ADDRREGISTERRAMPORT 0LATCHPORT 2LATCHFLASH8BREGISTERACCSTACKPOINTERTMP2TMP1PROGRAMADDRESSREGISTERALUBUFFERPSWSFRsTIMERSP.C.A.PCINCRE-MENTER8 16PROGRAMCOUNTERPSENALEEAV PPRSTTIMINGANDCONTROLINSTRUCTIONREGISTERDPTR’SMULTIPLEPDPORT 1LATCHPORT 3LATCHOSCILLATORXTAL1XTAL2PORT 1DRIVERSPORT 3DRIVERSP1.0–P1.7P3.0–P3.7SU010651999 Nov 22 4
Philips Semiconductors80C51 8-bit Flash microcontroller family16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAMPreliminary specificationP89C51RB2/P89C51RC2/P89C51RD2LOGIC SYMBOLPlastic Leaded Chip CarrierV CCV SS6 1 40XTAL1739PORT 0ADDRESS ANDDATA BUSLCCSECONDARY FUNCTIONSRxDTxDINT0INT1T0T1WRRDXTAL2RSTEA/V PPPSENALE/PROGPORT 3PORT 2PORT 1T2T2EXADDRESS BUSSU01302Pin Function1 NIC*2 P1.0/T23 P1.1/T2EX4 P1.2/ECI5 P1.3/CEX06 P1.4/CEX17 P1.5/CEX28 P1.6/CEX39 P1.7/CEX410 RST11 P3.0/RxD12 NIC*13 P3.1/TxD14 P3.2/INT015 P3.3/INT11718 28Pin Function16 P3.4/T017 P3.5/T118 P3.6/WR19 P3.7/RD20 XTAL221 XTAL122 V SS23 NIC*24 P2.0/A825 P2.1/A926 P2.2/A1027 P2.3/A1128 P2.4/A1229 P2.5/A1330 P2.6/A1429Pin Function31 P2.7/A1532 PSEN33 ALE/PROG34 NIC*35 EA/V PP36 P0.7/AD737 P0.6/AD638 P0.5/AD539 P0.4/AD440 P0.3/AD341 P0.2/AD242 P0.1/AD143 P0.0/AD044 V CCPINNING* NO INTERNAL CONNECTIONSU00023Plastic Dual In-Line PackageT2/P1.0T2EX/P1.1124039V CCP0.0/AD0Plastic Quad Flat Pack44 34ECI/P1.2CEX0/P1.3343837P0.1/AD1P0.2/AD2133CEX1/P1.4536P0.3/AD3PQFPCEX2/P1.5635P0.4/AD4CEX3/P1.6734P0.5/AD51123CEX4/P1.7833P0.6/AD6RST932P0.7/AD712 22RxD/P3.0 10TxD/P3.1 11INT0/P3.2 12INT1/P3.3 13T0/P3.4 14T1/P3.5 15WR/P3.6 16RD/P3.7 17XTAL2 18XTAL1 19V SSDUALIN-LINEPACKAGE3130292827262524232220 21EA/V PPALE/PROGPSENP2.7/A15P2.6/A14P2.5/A13P2.4/A12P2.3/A11P2.2/A10P2.1/A9P2.0/A8Pin Function1 P1.5/CEX22 P1.6/CEX33 P1.7/CEX44 RST5 P3.0/RxD6 NIC*7 P3.1/TxD8 P3.2/INT09 P3.3/INT110 P3.4/T011 P3.5/T112 P3.6/WR13 P3.7/RD14 XTAL215 XTAL1* NO INTERNAL CONNECTIONPin Function16 V SS17 NIC*18 P2.0/A819 P2.1/A920 P2.2/A1021 P2.3/A1122 P2.4/A1223 P2.5/A1324 P2.6/A1425 P2.7/A1526 PSEN27 ALE/PROG28 NIC*29 EA/V PP30 P0.7/AD7Pin Function31 P0.6/AD632 P0.5/AD533 P0.4/AD434 P0.3/AD335 P0.2/AD236 P0.1/AD137 P0.0/AD038 V CC39 NIC*40 P1.0/T241 P1.1/T2EX42 P1.2/ECI43 P1.3/CEX044 P1.4/CEX1SU00024SU000211999 Nov 22 5
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P89C51RB2/P89C51RC2/P89C51RD2 80C51 8-bit Flash ...

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