LE25S20XATAG

LE25S20XA: 串行闪存，2 Mb 256K x 8

The LE25S20XA is a SPI bus flash memory device with a 2M bit 256K x 8-bit configuration. It uses a single 1.8V power supply. While making the most of the features inherent to a serial flash memory device, the LE25S20XA is housed in an 8-pin ultra-miniature package. All these features make this device ideally suited to storing program in applications more compact dimensions. The LE25S20XA also has a small sector erase capability which makes the device ideal for storing parameters or data that have fewer rewrite cycles and conventional EEPROMs cannot handle due to insufficient capacity.

Features |   | Benefits

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Operations power supply : 1.65 to 1.95 V supply voltage range

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1.8 V low voltage operation

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Operating frequency : 40 MHz max

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High data transfer rate

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Temperature range : –40 to +85°C

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Fast erase and programming time

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Serial interface : SPI mode 0, mode 3 supported

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High reliability

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Electronic Identification : JDEC ID, Device ID

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Sector size : 4K bytes/small sector, 64K bytes/sector

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Erase functions

: Small Sector Erase SSE, Sector Erase SE, Chip Erase CHE

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Page program function : 256 bytes/page

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Status functions : Ready/Busy information, protect information

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Low operation current

: 6.0 mA Read mode operation current, 40 MHz

: 15 mA Erase or Program mode operating current

: 10 µA CMOS standby current

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Erase time

: 40 ms SSE, typ, 80 ms SE, typ, 300 ms CHE, typ

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Page program time tPP

: 3.0 ms/256 bytes typ., 3.5 ms/256 bytes max.

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High reliability

: 100,000 erase/program cycles

: 20 years data retention period

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