wrt54g v4想改8M的flash，哪些型号的芯片可用？

chkai1981

wrt54g v4现在已经改好64M的内存，现在想改8M的flash，请问哪些型号的flash芯片可用？

cqc7b

te28f640

cqc7b

e28f640

pole

呵呵.不知道那有买啊.哈哈

cqc7b

taobao

chkai1981

因特尔的e28f640，有j3a和j3c两种，请问用哪个？

kbj305

因特尔的e28f640，有j3a和j3c两种，请问用哪个？
chkai1981 发表于 2009-12-31 00:22

看看下图的说明，哪个都可以的，只是生产工艺不一样而已。
Product Features
■ Performance
—110/115/120/150 ns Initial Access Speed
—125 ns Initial Access Speed (256 Mbit
density only)
—25 ns Asynchronous Page mode Reads
—30 ns Asynchronous Page mode Reads
(256Mbit density only)
—32-Byte Write Buffer
—6.8 µs per byte effective
programming time
■ Software
—Program and Erase suspend support
—Flash Data Integrator (FDI), Common
Flash Interface (CFI) Compatible
■ Security
—128-bit Protection Register
—64-bit Unique Device Identifier
—64-bit User Programmable OTP Cells
—Absolute Protection with VPEN
= GND
—Individual Block Locking
—Block Erase/Program Lockout during
Power Transitions
■ Architecture
—Multi-Level Cell Technology: High
Density at Low Cost
—High-Density Symmetrical 128-Kbyte
Blocks
—256 Mbit (256 Blocks) (0.18µm only)
—128 Mbit (128 Blocks)
—64 Mbit (64 Blocks)
—32 Mbit (32 Blocks)
■ Quality and Reliability
—Operating Temperature:
-40 °C to +85 °C
—100K Minimum Erase Cycles per Block
—0.18 µm ETOX™ VII Process (J3C)
—0.25 µm ETOX™ VI Process (J3A)
■ Packaging and Voltage
—56-Lead TSOP Package
—64-Ball Intel
®
Easy BGA Package
—Lead-free packages available
—48-Ball Intel
®
VF BGA Package (32 and
64 Mbit) (x16 only)
—VCC =
2.7 V to 3.6 V
—VCCQ
= 2.7 V to 3.6 V

chkai1981

多谢楼上！

drygha

这个不清楚啊

drygha

我看看LS是..