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MC-4R64CEE6C-845 Folha de dados(PDF) 5 Page - NEC |
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MC-4R64CEE6C-845 Folha de dados(HTML) 5 Page - NEC |
5 / 16 page Preliminary Data Sheet M14537EJ1V1DS00 5 MC-4R64CEE6B, 4R64CEE6C Module Connector Pad Description (1/2) Signal I/O Type Description GND – – Ground reference for RDRAM core and interface. 72 PCB connector pads. LCFM I RSL Clock from master. Interface clock used for receiving RSL signals from the Channel. Positive polarity. LCFMN I RSL Clock from master. Interface clock used for receiving RSL signals from the Channel. Negative polarity. LCMD I VCMOS Serial Command used to read from and write to the control registers. Also used for power management. LCOL4..LCOL0 I RSL Column bus. 5-bit bus containing control and address information for column accesses. LCTM I RSL Clock to master. Interface clock used for transmitting RSL signals to the Channel. Positive polarity. LCTMN I RSL Clock to master. Interface clock used for transmitting RSL signals to the Channel. Negative polarity. LDQA8..LDQA0 I/O RSL Data bus A. A 9-bit bus carrying a byte of read or write data between the Channel and the RDRAM. LDQA8 is non-functional on modules with x16 RDRAM devices. LDQB8..LDQB0 I/O RSL Data bus B. A 9-bit bus carrying a byte of read or write data between the Channel and the RDRAM. LDQB8 is non-functional on modules with x16 RDRAM devices. LROW2..LROW0 I RSL Row bus. 3-bit bus containing control and address information for row accesses. LSCK I VCMOS Serial clock input. Clock source used to read from and write to the RDRAM control registers. NC – – These pads are not connected. These 24 connector pads are reserved for future use. RCFM I RSL Clock from master. Interface clock used for receiving RSL signals from the Channel. Positive polarity. RCFMN I RSL Clock from master. Interface clock used for receiving RSL signals from the Channel. Negative polarity. RCMD I VCMOS Serial Command Input used to read from and write to the control registers. Also used for power management. RCOL4..RCOL0 I RSL Column bus. 5-bit bus containing control and address information for column accesses. RCTM I RSL Clock to master. Interface clock used for transmitting RSL signals to the Channel. Positive polarity. RCTMN I RSL Clock to master. Interface clock used for transmitting RSL signals to the Channel. Negative polarity. RDQA8..RDQA0 I/O RSL Data bus A. A 9-bit bus carrying a byte of read or write data between the Channel and the RDRAM. RDQA8 is non-functional on modules with x16 RDRAM devices. RDQB8..RDQB0 I/O RSL Data bus B. A 9-bit bus carrying a byte of read or write data between the Channel and the RDRAM. RDQB8 is non-functional on modules with x16 RDRAM devices. RROW2..RROW0 I RSL Row bus. 3-bit bus containing control and address information for row accesses. |
Nº de peça semelhante - MC-4R64CEE6C-845 |
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Descrição semelhante - MC-4R64CEE6C-845 |
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