The 65 nm Spansion® FL-S NOR Flash memory family has over 20% faster double data rate (DDR) read speeds and three times the programming speed over competing serial Flash solutions. The Spansion FL-S delivers leading performance, automotive grade temperature ranges and in some applications, eliminates the need for DRAM. Engineers are increasingly demanding these attributes for improving the user experience and designing innovative, graphic-rich, stylish designs in next generation electronics. The product family is available from 128 Mb (megabit) to 1 Gb (gigabit).
1. The Changing Serial Flash Memory Landscape
SPI [pronounced "S.P.I" or "spy]
The serial peripheral interface (SPI) is an interface that enables the
serial (one bit at a time) exchange of data between two devices.
It has been employed in systems for communication between
processors and Flash memory. The simple serial interface
requires fewer connections and thus fewer pins. This lowers cost,
simplifies board layout and reduces the form factor of many
embedded designs. SPANSION® FL-S SPI FLASH MEMORY ADVANCEMENTS
5X FASTER ERASE
1979 > Enables faster code
0.7 update
1979 The year the serial peripheral interface
Seconds
was first used.
> Reduces chip
re-programming time
> Introduction of the board game Trivial Pursuit during manufacturing
> Margaret Thatcher was Prime Minister of the United Kingdom 0.13
> Superman The Movie was a big hit Micron Spansion
N25Q FL-S Time to program 256 Mb
Time to program 256 Mb
> M*A*S*H, The Love Boat, Taxi and Charlie’s Angels were on TV
> “My Sharona” by The Knack was #1 for 6 weeks on Billboard Charts
3X FASTER PROGRAM
66
> Reduces programming
SERIAL VS. PARALLEL INTERFACE: costs
Seconds
> Increases manufacturing
throughput
80% less board space 23
75% fewer pin connections
Lower System Cost with Less Performance Micron Spansion
N25Q FL-S Time to program 256 Mb
20% FASTER READ
SPI EVOLUTION > Faster system boot times
66
DDR Read – MB/s
1 1 54
> Improved user experience
Double
0 0
Data Rate 66MB/s
1 1
(DDR)
0 0
1
Micron Spansion
0
SPEED
x4 52MB/s N25Q FL-S
1
0
1
x2 26MB/s
0 INDUSTRY-LEADING PERFORMANCE
ENABLES INNOVATION
x1 1 17MB/s
> High density and high performance drives new applications like
automotive instrument clusters with real-time graphics
DENSITY > Small form factor for stylish design in next generation electronics
512 Kb > 8 Mb > 128Mb > 1Gb > Improved user experience and lower system cost