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4 Product Specification
The Solid State Drive (SSD) is a small form factor non-volatile memory drive which provides high capacity
data storage.
The drive with the IDE interface (2.00mm pitch) operates in three transfer modes:
UDMA
(Ultra Direct Memory Access)
up to Mode 4
66MB/s burst
MDMA (Multi Word Direct Memory Access)
up to Mode 2
16MB/s burst
PIO
(Programmed Input / Output)
up to Mode 4
16MB/s burst
The drive behaves as a standard ATA (IDE) disk drive. It can be set as master or slave by a jumper.
The drive has an internal intelligent controller which manages interface protocols, data storage and
retrieval as well as hardware RS-code Error Correction Code (ECC), defect handling, diagnostics and clock
control.
The wear leveling mechanism assures an equal usage of the Flash memory cells to extend the life time.
The hardware RS-code ECC allows to detect and correct 4 symbols per 528 Bytes.
The drive has a voltage detector and a powerful power-loss management feature to prevent data
corruption after power-down.
The specification has been realized and approved by the ATA/ATAPI-7 specification.
The system highlights are shown in Table 3 … Table 10.
Related Documentation
Parallel Transport Protocols and Physical Interconnect (ATA/ATAPI-7)
AT Attachment Interface Document, American National Standards Institute, X3.221-1994
4.1 System Performance
Table 3: System Performance
System Performance
Sleep to write
Typ.
Max.
5
Unit
Sleep to read
Power-on to Ready
(3)
Reset to Ready
(3)
<500
5
1000
500
ms
Data transfer Rate (UDMA4 burst)
66
(1)
Sustained Sequential Read (measured) UDMA4
128kB Block size
Sustained Sequential Write (measured) UDMA4
128kB Block size
2..32GB
2..32GB
37
32
(1)(2)
(1)(2)
40
35
(1)
(1)
MB/s
11
0.12
Sustained Random Read (measured) UDMA4
4kB Block size
Sustained Random Write (measured) UDMA4
4kB Block size
2..32GB
2..32GB
(1)(2)
(1)(2)
15
0.2
(1)
(1)
MB/s
Command to DRQ
Read
Write
100
30
2000
1000
μs
1.
2.
3.
All values refer to Toshiba flash chips in UDMA4 mode with Sequential write/read test (256 sectors multiple commands) or
Random write/read test (8 sectors multiple commands) with Firmware 090617.
Sustained Speed depends on flash type and number, file size, and burst speed
In case of IDE-Master with no slave drive additional max. 500ms
In case of IDE-Master with additional slave drive depending on the slave handshaking (max. 31s)
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.00
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
P-120_data_sheet_PA-QxBO_Rev100.doc
Page 6 of 76
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