串行闪存,2 Mb (256K x 8)

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LE25U20AFD 是一款可兼容串行接口的闪存器件,带有 256K × 8 位配置。它使用 2.5 V 单电源。在充分利用串行闪存设备固有特性的同时,LE25U20AFD 采用 8 引脚超小型封装。这些功能均使得此器件适用于便携信息设备等应用中的存储程序代码,在此类应用中,尺寸越来越紧凑。而且,通过使用小扇区擦除功能,此产品还适用于参数和日期存储用途,并且具有相对较小的重写时间,而这点是 EEPROM 的能力短板。

  • Portable Information Devices
  • Read / write operations enabled by single 2.5 V power supply :
    2.30 to 3.60 V supply voltage range
  • Operating frequency : 30 MHz
  • Temperature range : -40 to 85°C
  • Serial interface : SPI mode 0, mode 3 supported
  • Sector size : 4K bytes/small sector, 64K bytes/sector
  • Small sector erase, sector erase, chip erase functions
  • Page program function (256 bytes / page)
  • Block protect function
  • Status functions : Ready/busy information, protect information
  • Highly reliable read/write
    Number of rewrite times : 100,000 times
    Small sector erase time : 40 ms (typ), 150 ms (max)
    Sector erase time : 80 ms (typ), 250 ms (max)
    Chip erase time : 250 ms (typ), 1.6 s (max)
    Page program time : 4.0 ms/256 bytes (typ), 5.0 ms/256 bytes (max)
  • Data retention period : 20 years

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LE25U20AFD-AH

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CAD Model

Pb

A

H

P

VSOIC-8 NB

3

260

REEL

3000

N

2 Mb

256k x 8

15

2.3

3.6

50

6

-40

85

Price N/A

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