N25S40是Nantronics半導(dǎo)體公司推出的一款4MB閃存芯片，該芯片采用了優(yōu)秀的保護(hù)寫入機(jī)制，并支持標(biāo)準(zhǔn)的SPI，同時(shí)很好地保護(hù)用戶數(shù)據(jù)以避免由錯(cuò)誤或擦除造成的損失。其主要應(yīng)用在：機(jī)頂盒、DVD、電視機(jī)、藍(lán)牙、MP3 播放器、DSL 調(diào)制解調(diào)器、光存儲(chǔ)、硬盤、主板BIOS、打印機(jī)、數(shù)碼相框、無線LAN、LCD 顯示器、數(shù)字收音機(jī)等。
N25S40的采購(gòu)信息如下：
N25S40的主要功能特性包括：
1、Single power supply operation F
- Full voltage range: 2.7-3.6 volt
2、4 Mbit Serial Flash
- 4 M-bit/512 K-byte/2048 pages
- 256 bytes per programmable page
- Uniform 4K-byte Sectors
- Uniform 32K and 64K-byte Blocks
3、Standard and Dual
- Standard SPI: CLK, CS#, DI, DO, WP#, HOLD#
- Dual SPI: CLK, CS#, DIO, DO, WP#, HOLD#
- Fast Read Dual Output instruction
- Auto-increment Read capability
4、High performance
- 104MHz clock rate for one data bit
- 85MHz clock rate for two data bits
5、Low power consumption
- 12 mA typical active current
- 1 uA typical power down current
6、Flexible Architecture with 4KB sectors
- Sector Erase (4K-bytes)
- Block Erase (32K and 64K-bytes)
- Page Program up to 256 bytes
- More than 100K erase/write cycles
- More than 20-year data retention
7、Software and Hardware Write Protection:
- Write Protect all or portion of memory via software
- Enable/Disable protection with WP# pin
8、High performance program/erase speed
- Page program time: 1.8ms typical
- Sector erase time: 45ms typical
- Block erase time: 450ms typical
- Chip erase time: 3.5 Seconds typical
9、Package Options
- 8-pin SOIC 150/208-mil
- 8-pad WSON 6x5-mm
- 8-pin PDIP 300-mil
- All Pb-free packages are RoHS compliant
N25S40的功能框圖如下：
N25S40的管腳圖如下：
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