SuperFlash(R) Memory Products High Performance, Low Power Consumption and Superior Reliability What is SuperFlash? Memory Cell Structure Comparison SuperFlash is an innovative, highly reliable and versatile type of NOR Flash memory invented by Silicon Storage Technology (SST). SuperFlash memory is much more flexible and reliable than competing non-volatile memories. This technology utilizes a split-gate cell architecture which uses a robust thick-oxide process that requires fewer mask steps resulting in a lower-cost nonvolatile memory solution with excellent data retention and higher reliability. SuperFlash Advantages Fast, fixed program and erase times - ~ 40 ms vs. more than a minute for 64 Mb - Results in improved manufacturing efficiency and lower costs No pre-programming or verify required prior to erase - Results in significantly lower power consumption Superior reliability - 100K cycles and 100 years data retention Inherent small sector size - 4 KB erase sector vs. 64 KB - Results in faster re-write operations and contributes to lowering overall power consumption Thicker tunnel oxide reduces leakage improving data retention and reliability. Source (R) SuperFlash Poly 2 Poly 1 Source Stacked Gate (Conventional Flash) SST38VF640X 64 Mb Competitor A 64 Mb Competitor B 64 Mb Max Typ Max Typ Max 90 ns - 90 ns - 90 ns - 25 ns - 25 ns 10 s 60 s - 50 s - - 240 s (200 s)* - N/A N/A N/A Typ Read - Page Read (Word in page after initial access) - 25 ns 7 s Program Densities from 512 Kb through 64 Mb Voltages available: 1.8V, 2.5V and 3.0V Single footprint package up to 32 Mb Full SPI protocol compatibility Fast AAI programming mode Drain Fast erase performance improves manufacturing efficiency and lowers costs! Parameter Serial Flash Drain Split Gate Parallel Flash Densities from 512 Kb to 64 Mb Operating voltage: 1.8V, 3V and 5V HW reset/Boot block/Erase suspend Security ID and page read/write on 64 Mb Poly 2 Poly 1 Write Buffer Programming (up to 16 words) 28 s 40 s 240 s (200 s)* Erase - Sector (4 KWord 18 ms 25 ms N/A Erase - Block (32 KWord) 18 ms 25 ms 0.5 sec 3.5 sec 0.5 sec - Erase - Full Chip 40 ms 50 ms 64 sec 128 sec 64 sec 128 sec *Must use external 12V supply to achieve numbers inside ( ). BGA Micro BGA PLCC PDIP TSOP Microchip Technology Incorporated WSON SOIC XFBGA Serial Quad-I/O (SQITM) Flash Flash Performance Comparison SQI Flash memory boosts performance while maintaining the compact form factor of standard serial flash memory. 4-bit multiplexed I/O serial protocol Operating frequency up to 80 MHz > 300 Mb/sec sustained Read Operating Voltage: 3.0V and 1.8V Density: 16 Mb to 64 Mb Software Parameter & Individual Block Locking Security ID SST 26 Series SQITM (80 MHz) Parallel x16 (70 ns) Parallel x16 (70 ns) Serial SPI (66 MHz) 0 100 200 300 400 Sustained Data Transfer Rate (Mbit/sec) Microchip is the sole remaining supplier of 8 Mb and 16 Mb Firmware Flash These SuperFlash memory devices are compliant with the Intel Low Pin Count (LPC) Interface Specification and are intended to store system BIOS in applications such as PCs, graphic cards, set-top boxes, network boards and other embedded CPU applications FWH devices (49LF008A and 49LF016C) devices incorporate Intel's proprietary FWH interface protocol used in the Intel 8XX Series Hub Architecture chipsets LPC Flash devices (49LF080A and 49LF160C) comply with the standard Intel Low Pin Count (LPC) Interface Specification 1.1 Voltage 1.8V 3V Density 512 Kbit 1 Mbit 2 Mbit 4 Mbit 8 Mbit 16 Mbit 32 Mbit 64 Mbit 512 Kbit 1 Mbit 2 Mbit 4 Mbit 8 Mbit 16 Mbit 32 Mbit 64 Mbit 5V 1 Mbit 2 Mbit 4 Mbit Parallel 39WF400B 39WF800B 39WF160X 39VF010 39VF020, 39VF200A 39VF040, 39VF400A 39VF80XC 39VF160XC, 39VF168X 39VF320XC 39VF640XB, 38VF640X 38VF640XB 39SF010A 39SF020A 39SF040 SPI (Serial) 25WF512 25WF010 25WF020 25WF040 25WF080 SQITM (Quad-Bit) FWH/LPC 26WF080B 26WF016B 26WF032B 26WF064B 25VF512A 25VF010A 25VF020B 25VF040B 25VF080B 25VF016B 25VF032B 26VF016, 26VF016B 26VF032, 26VF032B 25VF064C 26VF064B 49LF008B, 49LF080B 49LF016C, 49LF160C Visit www.microchip.com for additional product information and to locate your local sales office. Silicon Storage Technology is a subsidiary of Microchip Technology Inc. Microchip Technology Inc. * 2355 W. Chandler Blvd. * Chandler, AZ 85224-6199 *Phone: 480-792-7200 SuperFlash(R) Memory Division * 1020 Kifer Road * Sunnyvale, CA 94086-5308 * Phone: 408-735-9110 Information subject to change. The SST logo, FlashFlex and SuperFlash are registered trademarks and SQI and Serial Quad I/O are trademarks of Microchip Technology Inc. All other trademarks mentioned herein are property of their respective companies. (c)2011 Microchip Technology Inc. Silicon Storage Technology is a subsidiary of Microchip Technology Inc. All Rights Reserved. Printed in the U.S.A. 9/11 DS25072A *DS25072A*