Z6S248C STEC, Z6S248C Datasheet - Page 33

• Manufacturer Part Number: Z6S248C
• Manufacturer: STEC
• Type: Solid State Driver

Specifications of Z6S248C

• Density: 48GByte
• Operating Supply Voltage (typ): 5V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Package Type: Not Required
• Mounting: Screw
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Lead Free Status / RoHS Status: Compliant

Zeus 2.5-Inch Serial ATA Solid State Drive
SSD Operation
The Zeus SATA SSD is comprised of three primary functional blocks: the SATA interface connector,
Zeus controller and NAND flash memory. A description of each drive component is provided under
Functional
Read/Write data transfer requests are initiated by the host via the SATA bus interface. Once
received, the Zeus controller, under the direction of the microcontroller, processes the request.
Commands that do not require data to be read from or written to the flash memory controller are
typically handled by the Zeus controller. Some commands may require the Zeus controller to use
external circuitry (for example, Intelligent Destructive Purge™), that do not involve the flash memory
controller.
When a write operation is requested and data is received, the controller uses integrated DMA
controllers to transfer the data from host memory to the flash memory controller. Through a standard
ATA (IDE) interface, the flash memory controller transfers the data from the Zeus controller to
available locations in the local flash memory of the SSD. The internal transfer rates can range up to
55MB/s. The controller notifies the host after the write operation is completed.
If a read request is received, the controller retrieves the data from the local flash memory via the flash
memory controller. If the controller is responding to a PIO read operation, it presents the data to the
ATA bus. If it is responding to a UDMA read request, the controller writes the data directly to the
system memory on the host. Regardless of the type of operation (PIO or UDMA), the Zeus controller
notifies the host when the data is ready for transmission.
Blocks.
The microcontroller is responsible for initiating and controlling all
activity within the controller, including bad block mapping and
executing the wear-leveling algorithms.
The Zeus controller decodes an incoming host command, and will
configure the appropriate interrupts and status for the local
microprocessor to handle various commands. For read and write
transfer commands, the hardware can handle the initial handshake
with the host automatically. If firmware enables full auto mode, read
and write transfers can be fully handled by hardware with minimum
firmware support.
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PECIFICATIONS
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