SanDisk SSD P4 User Manual download pdf (Page 8)

SSD P4 (PATA) Solid State Drive Product Manual

Rev 0.4

1. Introduction

1.1 General Description

The SanDisk® SSD P4 builds on the momentum of the first and second generations

of pSSD and the overall trend in the market towards smaller, thinner computing

machines that enable mobility and connectivity on the go.

Using NAND flash based storage to replace Hard Disk Drives, SSD P4 provides a

much improved user experience. In addition to being rugged and reliable, the third

generation modular SSD beats HDDs in every possible metric – power consumption,

sequential and random read performances as well as sequential and random write

performances. The SATA interface aligns with the global transition in the industry,

which is enforced by the platform’s chipsets.

Using the advanced 32nm memory geometry is provided in capacity range of 32GB-

128GB. The small form factor of SSD P4 enables further miniaturization of

Netbooks, SmartBooks and Tablets designs and opens doors for a whole range of

other applications.

The SSD P4 product complies with the ATA-8 standard and is electrically compatible

with a parallel IDE/ATA disk drive.

In addition to the mass storage-specific NAND flash memory chips, the SSD includes

an on-board intelligent controller for managing interface protocols, data storage and

retrieval, error-correcting code (ECC), defect handling and diagnostics, advance

power management and clock control. Using innovative data management

algorithms, the SSD P4 provides superior sequential and random IO performance,

and ensures data reliability.

NAND Flash

SSD Controller

NAND

Flash

Array - 0

High-Speed

NAND Flash I/F

SATA

Interface

NAND

Flash

Array - 1

SanDisk SSD P4 (PATA)

PATA-to-

SATA

Bridge

PATA (UDMA6)

Interface

Figure 1-1: SanDisk SSD P4 (PATA) Block Diagram

Unlike an HDD, the SSD P4 has no moving parts. It keeps working in environments

such as classrooms, kiosks and in space-restricted server racks. The patented flash

management technology brings top data integrity to the SSD, even during power

losses. Dynamic bad block management, dynamic and static wear-leveling, and

robust error detection and correction code (EDC/ECC) ensure data integrity.

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SanDisk SSD P4 User Manual Page 8

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