SDCFJ-1024-388 SanDisk, SDCFJ-1024-388 Datasheet - Page 12

• Manufacturer Part Number: SDCFJ-1024-388
• Description: COMPACT FLASH 1GB
• Manufacturer: SanDisk
• Type: CompactFlashr

Specifications of SDCFJ-1024-388

• Memory Size: 1GB
• Memory Type: CompactFLASH
• Density: 1GByte
• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Package Type: Not Required
• Mounting: Socket
• Pin Count: 50
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3.135/4.5V
• Operating Supply Voltage (max): 3.465/5.5V
• Programmable: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Introduction to the CompactFlash Memory Card
1.6.5. Automatic Sleep Mode
A unique feature of the SanDisk CompactFlash Memory Card (and other SanDisk products) is automatic entrance
and exit from sleep mode. Upon completion of a command, the CompactFlash Card will enter sleep mode to
conserve power if no further commands are received within 5 msec. The host does not have to take any action for
this to occur. In most systems, the CompactFlash Memory Card is in sleep mode except when the host is accessing
it, thus conserving power. Note that the delay from command completion to entering sleep mode can be adjusted.
When the host is ready to access the CompactFlash Memory Card and it is in sleep mode, any command issued to
the CompactFlash Card will cause it to exit sleep and respond. The host does not have to follow the ATA protocol of
issuing a reset first. It may do this if desired, but it is not needed. By not issuing the reset, performance is improved
through the reduction of overhead but this must be done only for the SanDisk products as other ATA products may
not support this feature.
1.6.6. Dynamic Adjustment of Performance versus Power Consumption
This feature is no longer supported. This command will be treated as a NOP (No Operation) to guarantee backward
compatibility.
1.6.7. Power Supply Requirements
This is a dual voltage product, which means it will operate at a voltage range of 3.30 volts ± 5% or 5.00 volts ±
10%. Per the PCMCIA specification Section 2.1.1, the host system must apply 0 volts in order to change a voltage
range. This same procedure of providing 0 volts to the card is required if the host system applies an input voltage
outside the desired voltage by more than 15%. This means less than 4.25 volts for the 5.00-volt range and less than
2.75 volts for the 3.30 volt range.
®
CompactFlash
Memory Card Product Manual, Rev. 11.0 ©2006 SanDisk Corporation
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