S25FL256SDSBFIQ01 View Datasheet(PDF) - Cypress Semiconductor
Part Name
Description
Manufacturer
S25FL256SDSBFIQ01
Cypress Semiconductor
S25FL256SDSBFIQ01 Datasheet PDF : 144 Pages
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S25FL128S, S25FL256S
1.3 Glossary
Command
All information transferred between the host system and memory during one period while CS# is low. This includes the
instruction (sometimes called an operation code or opcode) and any required address, mode bits, latency cycles, or
data.
DDP
(Dual Die Package)
Two die stacked within the same package to increase the memory capacity of a single package. Often also referred to
as a Multi-Chip Package (MCP)
DDR
(Double Data Rate)
When input and output are latched on every edge of SCK.
Flash
The name for a type of Electrical Erase Programmable Read Only Memory (EEPROM) that erases large blocks of
memory bits in parallel, making the erase operation much faster than early EEPROM.
High
Instruction
A signal voltage level ≥ VIH or a logic level representing a binary one (1).
The 8 bit code indicating the function to be performed by a command (sometimes called an operation code or opcode).
The instruction is always the first 8 bits transferred from host system to the memory in any command.
Low
LSB
(Least Significant Bit)
A signal voltage level VIL or a logic level representing a binary zero (0).
Generally the right most bit, with the lowest order of magnitude value, within a group of bits of a register or data value.
MSB
(Most Significant Bit)
Generally the left most bit, with the highest order of magnitude value, within a group of bits of a register or data value.
Non-Volatile
No power is needed to maintain data stored in the memory.
OPN
The alphanumeric string specifying the memory device type, density, package, factory non-volatile configuration, etc.
(Ordering Part Number) used to select the desired device.
Page
512 bytes or 256 bytes aligned and length group of data. The size assigned for a page depends on the Ordering Part
Number.
PCB
Printed Circuit Board
Register Bit References Are in the format: Register_name[bit_number] or Register_name[bit_range_MSB: bit_range_LSB]
SDR
(Single Data Rate)
When input is latched on the rising edge and output on the falling edge of SCK.
Sector
Erase unit size; depending on device model and sector location this may be 4 kbytes, 64 kbytes or 256 kbytes.
Write
An operation that changes data within volatile or non-volatile registers bits or non-volatile flash memory. When
changing non-volatile data, an erase and reprogramming of any unchanged non-volatile data is done, as part of the
operation, such that the non-volatile data is modified by the write operation, in the same way that volatile data is
modified – as a single operation. The non-volatile data appears to the host system to be updated by the single write
command, without the need for separate commands for erase and reprogram of adjacent, but unaffected data.
1.4 Other Resources
1.4.1
Links to Software
http://www.spansion.com/Support/Pages/Support.aspx
1.4.2
Links to Application Notes
http://www.spansion.com/Support/TechnicalDocuments/Pages/ApplicationNotes.aspx
1.4.3
Specification Bulletins
Specification bulletins provide information on temporary differences in feature description or parametric variance since the
publication of the last full data sheet. Contact your local sales office for details. Obtain the latest list of company locations and
contact information at: http://www.spansion.com/About/Pages/Locations.aspx
Document Number: 001-98283 Rev. *I
Page 8 of 144
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