SanDisk SSD X100
Product Manual (Released)
Rev 1.0
© 2011 SanDisk® Corporation
17
Document No. 80-11-01842
3.
Power Characteristics
3.1
Supply Voltage
Table
3-1: SanDisk SSD X100 Supply Voltage
3.2
Graceful Power-off Requirements
By default, most Operating Systems operate with Host Write Cache ’enabled,’ which more
accurately means there can be data residing in the X100 that hasn’t been succesfully
programmed into flash memory (this is a feature of ATA and not specific to SanDisk SSD
products). To ensure this data is properly committed to flash memory, the X100 requires a Flush
Cache command followed by a Standby Immediate command prior to power being removed.
This command sequence allows the X100 to complete the programming of all data in its volatile
data cache into flash memory, returning ’good’ status to the host only after successful
completion. This command sequence is handled transparently by most OS’s during a standard
shutdown sequence (e.g., hibernation, shutdown, standby, etc).
However, it is possible that in some applications (e.g., embedded systems without a typical user-
interface providing graceful power-down options), power to the X100 could be removed,
without warning, precluding the possibility of a graceful shutdown – resulting in the possibility
of data loss and/or longer power on time.
Parameter
Specifications
Input Voltage
Form Factor
Standard SATA connector
5V ± 5%
mSATA
3.3V ± 5%
Maximum Ripple
100mV (peak to peak),
0
–
30MHz
Supply Rise Time
100msec
