SanDisk SDIB-4, Product Manual

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FlashDrive Product Manual
FlashDrive Product Manual © 1999 SANDISK CORPORATION 12
2.2 System Power Requirements
Standard 1.8" FlashDrive
(Model SDIB)
Industrial 1.8" FlashDrive
(Model SDIBI)
DC Input Voltage (VCC)
100 mV max. ripple(p-p) 3.3 V ± 5% 5 V ± 10% 3.3 V ± 5% 5 V ± 5%
+5 V Currents
(maximum Average value)
See Notes. Sleep:
Reading:
Writing:
Read/Write Peak
200 µA
(Slow - Fast)
32 mA - 45 mA
32 mA - 60 mA
150 mA/50µs 500 µA
(Slow - Fast)
46 mA - 75 mA
46 mA - 90 mA
150 mA/50µs 200 µA
(Slow - Fast)
32 mA - 45 mA
32 mA - 60 mA
150 mA/50µs 500 µA
(Slow - Fast)
46 mA - 75 mA
46 mA - 90 mA
150 mA/50µs
Standard 2.5" and 3.5"
FlashDrive
(Models SD25B and SD35B)
Industrial 2.5" and 3.5"
FlashDrive
(Models SD25BI
and SD35BI)
DC Input Voltage (VCC)
100 mV max. ripple(p-p) 3.3 V ± 5% 5 V ± 10% 3.3 V ± 5% 5 V ± 5%
+5 V Currents
(maximum Average value)
See Notes. Sleep:
Reading:
Writing:
Read/Write Peak
200 µA
(Slow - Fast)
32 mA - 80 mA
32 mA - 80 mA
150 mA/50µs 500 µA
(Slow - Fast)
46 mA - 120 mA
46 mA - 120 mA
150 mA/50µs 200 µA
(Slow - Fast)
32 mA - 80 mA
32 mA - 80 mA
150 mA/50µs 500 µA
(Slow - Fast)
46 mA - 120 mA
46 mA - 120 mA
150 mA/50µs
Note 1. All values quoted are typical at ambient temperature and nominal supply voltage unless otherwise stated.
Note 2. Sleep mode current is specified under the condition that all drive inputs are at static CMOS levels and in a
“Not Busy” operating state.
Note 3. The currents specified show the complete range of programmability in the FlashDrive memory drive. A
tradeoff between performance and maximum current used can be done using the Set Features command.
The FlashDrive defaults to the fastest speed and highest current. See the Set Features command for more
details.
2.3 System Performance
All performance timings assume the FlashDrive
controller is in the default (i.e., fastest) mode at
Vcc = 5.0 volts.
Start Up Times
Sleep to write:
Sleep to read:
Reset to ready:
2.5 msec maximum
2.0 msec maximum
50 msec typical
400 msec maximum
Active to Sleep Delay Programmable
Data Transfer Rate To/From Flash 4.0 MBytes/sec burst
Data Transfer Rate To/From Host 6.0 MBytes/sec burst
Controller Overhead Command to DRQ 1.25 msec maximum
Note: The Sleep to Write and Sleep to Read times are the times it takes the FlashDrive to exit sleep mode when
any command is issued by the host to when the drive is reading or writing. The FlashDrive does not require a
reset to exit sleep mode. See section 1.5.5.