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STPCC0390BTC3 データシート(PDF) 11 Page - STMicroelectronics |
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STPCC0390BTC3 データシート(HTML) 11 Page - STMicroelectronics |
11 / 51 page PIN DESCRIPTION 11/51 Release B This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. Table 2.2. Definition of Signal Pins Signal Name Dir Description Qty BASIC CLOCKS AND RESETS SYSRSTI# I System Power Good Input 1 SYSRSTO# O System Reset Output 1 XTALI I 14.3MHz Crystal Input 1 XTALO I/O 14.3MHz Crystal Output - External Oscillator Input 1 HCLK I/O Host Clock (Test) 1 DEV_CLK O 24MHz Peripheral Clock (floppy drive) 1 DCLK I/O 27-135MHz Graphics Dot Clock 1 MEMORY INTERFACE MCLKI I Memory Clock Input 1 MCLKO O Memory Clock Output 1 CS#[3:0] O DIMM Chip Select 4 MA[11:0] O Memory Row & Column Address 12 MD[63:0] I/O Memory Data 64 RAS#[1:0] O Row Address Strobe 2 CAS#[1:0] O Column Address Strobe 2 MWE# O Write Enable 1 DQM[7:0] O Data Input/Output Mask 8 PCI INTERFACE PCI_CLKI I 33MHz PCI Input Clock 1 PCI_CLKO O 33MHz PCI Output Clock (from internal PLL) 1 AD[31:0] I/O PCI Address / Data 32 CBE#[3:0] I/O Bus Commands / Byte Enables 4 FRAME# I/O Cycle Frame 1 IRDY# I/O Initiator Ready 1 TRDY# I/O Target Ready 1 LOCK# I PCI Lock 1 DEVSEL# I/O Device Select 1 STOP# I/O Stop Transaction 1 PAR I/O Parity Signal Transactions 1 SERR# O System Error 1 PCIREQ#[2:0] I PCI Request 3 PCI_GNT#[2:0] O PCI Grant 3 PCI_INT[3:0] I PCI Interrupt Request 4 VDD5 I 5V Power Supply for PCI ESD protection 4 ISA CONTROL ISA_CLK O ISA Clock Output - Multiplexer Select Line For IPC 1 ISA_CLK2X O ISA Clock x2 Output - Multiplexer Select Line For IPC 1 OSC14M O ISA bus synchronisation clock 1 LA[23:17] O Unlatched Address 7 SA[19:0] I/O Latched Address 20 SD[15:0] I/O Data Bus 16 ALE O Address Latch Enable 1 MEMR#, MEMW# I/O Memory Read and Memory Write 2 SMEMR#, SMEMW# O System Memory Read and Memory Write 2 |
同様の部品番号 - STPCC0390BTC3 |
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同様の説明 - STPCC0390BTC3 |
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