 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
DP8496 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
DP8496 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
|
|
1 / 92 page  TLF11212 PRELIMINARY December 1991 DP8496DP8497 SCSI-2 Disk Data Controller General Description The DP84967 is a highly integrated high-performance CMOS SCSI disk data controller It is designed for use in- side intelligent hard disk drives that utilize the Small Com- puter System Interface (SCSI) standard It can also be used in ESDI SMD and ST506 bridging controller applications The DP84967 includes most of the data path functions needed to implement a complete hard disk controller It in- cludes a full featured SCSI Bus Controller Buffer Memory Interface with pipelined pointers fast Disk Data Controller and a Processor Interface With the addition of National Semiconductor read-channel chips such as a PLL Synchronizer and EncoderDecoder a pulse detector and a head amplifier complete data-path electronics of a SCSI drive can be implemented A micro- controller such as National’s HPCTM may be used to man- age the SCSI commands and the drive specific control sig- nals The high level of intelligence implemented on the DP84967 means lower overhead for the disk-drive’s em- bedded microcontroller making possible a high-perform- ance design employing only one micro-controller The DP8496 provides on-chip single-ended transceivers for driving the SCSI bus The DP8497 provides all control sig- nals necessary for direct interfacing with differential trans- ceivers recommended for Fast SCSI option of SCSI-2 Features Y High disk data rates DP84967-33 33 Mbitsec DP84967-50 50 Mbitsec Y Synchronous SCSI-2 transfer rates up to 10 MBytesec with offset up to 16 (Fast option) Y Asynchronous SCSI transfer rates up to 5 MBytesec Y Support for Fast Page Mode and Static Column De- code type DRAMs Y Attains sustained buffer bandwidths above 9 MBytesec with byte-wide memory configuration Y Word-wide buffer memory port allows sustained band- widths of 17 MBytesec Y Buffer memory up to 4 MBytes DRAM or 1 MByte SRAM Y On-chip DMA with buffered pointer addresses Y Multi-phase type SCSI commands Y Parity error checking on SCSI buffer memory and all internal data paths Y Programmable format and sectoring modes including soft pseudo-hard and hard Y 32 48 or 56-bit computer generated ECC with on-chip correction Y On-chip single-ended transceivers on DP8496 DP8497 interfaces directly with differential transceivers for Fast SCSI Y Available in 100-pin PQFP package System Diagram TLF11212 – 1 TRI-STATE is a registered trademark of National Semiconductor Corporation HPCTM is a trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation RRD-B30M105Printed in U S A |
Similar Part No. - DP8496 |
|
Similar Description - DP8496 |
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
