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PDF SST48CF096 Data sheet ( Hoja de datos )
| Número de pieza | SST48CF096 | |
| Descripción | (SST48CFxxx) CompactFlash Card | |
| Fabricantes | Silicon Storage Technology | |
| Logotipo |  |
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CompactFlash Card
SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256
SST48CFxxxATA/IDE Standard CompactFlash Card
8MB / 16MB / 24MB / 32MB / 48MB / 64MB / 96MB / 128MB / 192MB / 256MB
FEATURES:
Data Sheet
• CompactFlash Association specification
standard
• 8, 16, 24, 32, 48, 64, 96, 128, 192, and 256 MByte
capacities
• Small Form Factor: 36.4 mm x 42.8 mm x 3.3 mm
• Supports 5.0-Volt and 3.3-Volt Read and Write
– 4.5-5.5V, 3.135-3.465V for commercial
• PC Card ATA and True IDE interface
– 512 Bytes sector
– ATA command set compatible
• Low Power Consumption:
– Active mode: 35 mA/55 mA (3.3V/5.0V)(typical)
– Sleep mode: 100 µA/150 µA (3.3V/5.0V)(typical)
• Data Transfer Rate to/from Host
– 20 MB/s burst at 5.0V
– 6.6 MB/s burst at 3.3V
• High Performance
– Up to 1.4 MB/sec sustained write transfer rate
(host to flash)
• Controller Overhead Command to DRQ
– Less than 0.5 ms
• Zero Data Retention Power
– Batteries not required for data storage
• Start Up Time
– Sleep to Read: 200 ns
– Sleep to Write: 200 ns
– Reset to Ready: 50 ms typical, 400 ms Max.
• Support for Commercial Temperature Range
– 0°C to +70°C for operating commercial
– -25°C to +85°C non-operating (storage)
• Extremely Rugged and Reliable
– Built-in ECC support corrects 3 random Bytes
error per 512 Byte sector
– 2000 G operating and non-operating shock
• Intelligent ATA/IDE Controller
– Built-in microcontroller with intelligent firmware
– 256 Bytes of attribute memory for storing CIS
information
– Supports multiple-sector Read/Write operation
to enhance system performance
• Power Management Unit
– Immediate disabling of unused circuitry
www.DataSheet4U.com
PRODUCT DESCRIPTION
SST’s CompactFlash (CF) card is an ultra-small, low cost,
high performance, removable flash memory data storage
system. This technology is well suited for solid state mass
storage portable applications offering new and expanded
functionality while enabling smaller and lighter designs.
CompactFlash technology is widely used in a variety of
consumer products such as portable computers, digital
cameras, handheld data collection scanners, Personal
Digital Assistants (PDAs), handy terminals, audio players,
monitoring devices and set-top boxes.
SST’s CompactFlash products provide complete PCMCIA-
ATA functionality and compatibility. This is achieved
because the 50-pin CF card can be easily slipped into a
passive 68-pin Type II adapter card that fully meets PCM-
CIA electrical and mechanical interface specifications.
SST’s CompactFlash products are also fully compliant with
CFA standards. The SST CF card is read and written to
using a single power supply of 5.0V or 3.3V and is available
in 8 to 256 MByte densities.
SST’s CompactFlash cards contain additional attribute
memory of 256 Bytes for storing the Card Information
Structure (CIS) information. SST’s CompactFlash card has
built in microcontroller and file management firmware that
communicates with ATA standard interfaces; therefore, the
SST’s CompactFlash cards do not require additional soft-
ware for the host, such as Flash File System (FFS) and
Memory Technology Driver (MTD).
©2001 Silicon Storage Technology, Inc.
S71125-03-000 9/01
375
1
The SST logo and SuperFlash are registered trademarks of Silicon Storage Technology, Inc.
SST is an authorized licensee of the CompactFlash™ and CF[logo]™ trademarks. Some data and tables are reproduced from the
CompactFlash Specification by permission of the CompactFlash Association. These specifications are subject to change without notice.
1 page  
CompactFlash Card
SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256
Data Sheet
1.0 GENERAL DESCRIPTION
The SST’s CompactFlash card contains a controller,
embedded firmware storage and flash media in a match-
book sized package with a 50-pin connector consisting of
two rows of 25 female contacts each on 50 mil (1.27 mm)
centers. Refer to Figure 1 for SST’s CompactFlash card
block diagram. The controller interfaces with the host sys-
tem allowing data to be written to and read from the flash
media.
1.1 Performance-optimized ATA Controller
The heart of a CompactFlash card is the ATA controller
which translates standard IDE/ATA signals into flash media
data and controls. SST’s CompactFlash card contains a
proprietary ATA controller that was specifically designed to
attain high data throughput from host to flash. The following
components contribute to the ATA controller’s performance.
1.1.3 Power Management Unit (PMU)
Power Management Unit controls the power consumption
of the CompactFlash card. The PMU dramatically extends
product battery life by putting the part of the circuitry that is
not in operation into sleep mode.
1.1.4 SRAM Buffer
A key contributor to the ATA controller performance is a
SRAM buffer. The buffer optimizes host’s data writes to
flash media.
1.1.5 Embedded Flash File System
Embedded Flash File System is an integral part of the
SST’s ATM controller. It contains MCU firmware that per-
forms the following tasks:
1. Translates host side signals into flash media
Writes and Reads.
1.1.1 Microcontroller Unit (MCU)
The MCU translates IDE/ATA commands into data and
control signals required for flash memory operation.
1.1.2 Internal Direct Memory Access (DMA) Control
The ATA controller inside SST’s CompactFlash card uses
DMA allowing instant data transfer to memory. This imple-
mentation eliminates controller overhead associated with
traditional, firmware based, memory control, increasing
data transfer rate.
2. Provides flash media wear leveling to spread the
flash writes across all the memory address space
to increase the longevity of flash media.
3. Keeps track of data file structures.
1.1.6 Error Correction Code (ECC)
The ATA Controller contains ECC algorithm that corrects
3 bytes of error per 512 Byte sector.
www.DataSheet4U.com
ATA Controller
To
Host
Embedded
Flash
File System
SRAM Buffer
MCU
ECC
Internal
DMA
Flash
Media
PMU
FIGURE 1: SST COMPACTFLASH BLOCK DIAGRAM
©2001 Silicon Storage Technology, Inc.
5
375 ILL1-1.4
S71125-03-000 9/01 375
5 Page 
CompactFlash Card
SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256
Data Sheet
TABLE 2-2: SIGNAL DESCRIPTION (CONTINUED) (3 OF 4)
Symbol
Type1
Pin
Name and Functions
-OE
(PC Card Memory Mode)
I
9 This is an Output Enable strobe generated by the host interface. It is
used to read data from the CompactFlash card in Memory Mode and
to read the CIS and configuration registers.
-OE
(PC Card I/O Mode)
In PC Card I/O Mode, this signal is used to read the CIS and configu-
ration registers.
-ATA SEL
(True IDE Mode)
To enable True IDE Mode this input should be grounded by the host.
RDY/-BSY
PC Card Memory Mode)
O
37 In Memory Mode this signal is set high when the CompactFlash Card
is ready to accept a new data transfer operation and held low when
the card is busy. The Host memory card socket must provide a pull-
up resistor.
At power up and at Reset, the RDY/-BSY signal is held low (busy)
until the CompactFlash card has completed its power up or reset
function. No access of any type should be made to the Compact-
Flash card during this time. The RDY/-BSY signal is held high (dis-
abled from being busy) whenever the following condition is true: The
CompactFlash Card has been powered up with +RESET continu-
ously disconnected or asserted.
-IREQ
PC Card I/O Mode)
I/O Operation - After the CompactFlash card has been configured for
I/O operation, this signal is used as -Interrupt Request. This line is
strobed low to generate a pulse mode interrupt or held low for a level
mode interrupt.
INTRQ
(True IDE Mode)
In True IDE Mode signal is the active high Interrupt Request to the
host.
-REG
(PC Card Memory Mode)
I
44 This signal is used during Memory Cycles to distinguish between
Common Memory and Register (Attribute) Memory Attribute Memory
Select accesses. High for Common Memory, Low for Attribute Mem-
ory.
-REG
www.DaPtaCShCeeatr4dUI./cOomMode)
The signal must also be active (low) during I/O Cycles when the I/O
address is on the Bus.
-REG
(True IDE Mode)
RESET
(PC Card Memory Mode)
I
In True IDE Mode this input signal is not used and should be con-
nected to VDD by the host.
41 When the pin is high, this signal Resets the CompactFlash Card. The
CompactFlash card is Reset only at power up if this pin is left high or
open from power-up. The CompactFlash card is also Reset when the
Soft Reset bit in the Card Configuration Option Register is set.
RESET
(PC Card I/O Mode)
This signal is the same as the PC Card Memory Mode signal.
-RESET
(True IDE Mode)
In the True IDE Mode this input pin is the active low hardware reset
from the host.
VDD
(PC Card Memory Mode)
-
13,38
+5.0V, +3.3V power.
VDD
(PC Card I/O Mode)
This signal is the same for all modes.
VDD
(True IDE Mode)
This signal is the same for all modes.
©2001 Silicon Storage Technology, Inc.
11
S71125-03-000 9/01 375
11 Page | ||
| Páginas | Total 60 Páginas | |
| PDF Descargar | [ Datasheet SST48CF096.PDF ] | |
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