tag:www.nabble.com,2006:forum-33318Nabble - jojolucky2008-07-12T00:44:14ZAn electronic forum. Includes a collection of small electronic circuits
<br>eg ,1N4148 75V 3A ZW32415 ZUW1R52418 ZS1R50505 ZR36701TQC ZR36215 ZKT100A120F00 ZHB2210-01 ZC99685P Z86L8208SSCR50XRTR
<br>which is from
<br><a href="http://www.chinaicmart.com" target="_top" rel="nofollow">http://www.chinaicmart.com</a>tag:www.nabble.com,2006:post-18417030PRODUCT DESCRIPTION:SST27SF256-90-3C-WH2008-07-12T00:44:14Z2008-07-12T00:44:14ZcarrieleePRODUCT DESCRIPTION
<br>The SST27SF256/512/010/020 are a 32K x8 / 64K x8 /
<br>128K x8 / 256K x8 CMOS, Many-Time Programmable
<br>(MTP) low cost flash, manufactured with SST!s proprietary,
<br>high performance SuperFlash technology. The split-gate
<br>cell design and thick oxide tunneling injector attain better
<br>reliability and manufacturability compared with alternate
<br>approaches. These MTP devices can be electrically erased
<br>and programmed at least 1000 times using an external pro-
<br>grammer with a 12 volt power supply. They have to be
<br>erased prior to programming. These devices conform to
<br>JEDEC standard pinouts for byte-wide memories.
<br>Featuring high performance Byte-Program, the
<br>SST27SF256/512/010/020 provide a Byte-Program time of
<br>20 PAs. Designed, manufactured, and tested for a wid
<br>spectrum of applications, these devices are offered with an
<br>endurance of at least 1000 cycles. Data retention is rated at
<br>greater than 100 years.
<br>The SST27SF256/512/010/020 are suited for applications
<br>that require infrequent writes and low power nonvolatile
<br>storage. These devices will improve flexibility, efficiency,
<br>and performance while matching the low cost in nonvolatile
<br>applications that currently use UV-EPROMs, OTPs, and
<br>mask ROMs.
<br>To meet surface mount and conventional through hole
<br>requirements, the SST27SF256/512 are offered in 32-pin
<br>PLCC, 32-pin TSOP, and 28-pin PDIP packages. The
<br>SST27SF010/020 are offered in 32-pin PDIP, 32-pin PLCC
<br>and 32-pin TSOP packages. See Figures 1, 2, and 3 for
<br>pinouts.
<br><br>FEATURES:
<br>Organized as 32K x8 / 64K x8 / 128K x8 / 256K x8
<br>4.5-5.5V Read Operation
<br>Superior Reliability
<br>-Endurance: At least 1000 Cycle
<br>-Greater than 100 years Data Retentio
<br>Low Power Consumption
<br>-Active Current: 20 mA (typical)
<br>-Standby Current: 10 PAA (typical
<br>Fast Read Access Time
<br>-70 ns
<br>-90 ns
<br>Fast Byte-Program Operation
<br>-Byte-Program Time: 20 PAs (typical
<br>-Chip Program Time:
<br>0.7 seconds (typical) for SST27SF256
<br>1.4 seconds (typical) for SST27SF512
<br>2.8 seconds (typical) for SST27SF010
<br>5.6 seconds (typical) for SST27SF020
<br>Electrical Erase Using Programmer
<br>-Does not require UV source
<br>-Chip-Erase Time: 100 ms (typical)
<br>TTL I/O Compatibility
<br>JEDEC Standard Byte-wide EPROM Pinouts
<br>Packages Available
<br>-32-pin PLCC
<br>-32-pin TSOP (8mm x 14mm)
<br>- 28-pin PDIP for SST27SF256/512
<br>- 32-pin PDIP for SST27SF010/020
<br><br>THE INFORMATION IS FROM <a href="http://www.chinaicmart.com/series-SS...-90-3C-WH.html" target="_top" rel="nofollow">http://www.chinaicmart.com/series-SS...-90-3C-WH.html</a>