Overview
The LE25S161 is a SPI bus flash memory device with a 16 Mbit (2048K x 8−bit) configuration. It uses a single power supply. While making the most of the features inherent to a serial flash memory device, the LE25S161 is housed in an 8−pin ultra−miniature package. All these features make this device ideally suited to storing program in applications such as portable information devices, which are required to have increasingly more compact dimensions.
The LE25S161 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
• Operations Power Supply: 1.65 to 1.95 V Supply Voltage Range
• Operating Frequency: 70 MHz (Max)
• Temperature Range: –40 to +90°C
• Serial Interface: SPI Mode 0, Mode 3 Supported
• Electronic Identification: JDEC ID, Device ID, Serial Flash
   Discoverable Parameter (SFDP)
• Sector Size: 4 kbytes/Small Sector, 64 kbytes/Sector
• Erase Functions: Small Sector Erase (SSE), Sector Erase (SE),
   Chip Erase (CHE)
• Page Program Function: 256 bytes/Page
• Status Functions: Ready/Busy Information, Protect Information
• Low Operation Current: 5.0 mA (Low−power Program Mode, Typ),
   3.5 mA (Low−Power Read Mode, Typ)
• Erase Time: 10 ms (SSE, Typ), 15 ms (SE, Typ),
   210 ms (CHE, Typ)
• Page Program Time (tPP): 0.4 ms/256 bytes (Typ.),
   0.7 ms/256 bytes (Max.)
• Emergency Shutdown of the Current Consumption:
   Transition to a Standby State in Less than 20 s from the
   Active by Write Suspend
   Transition to a Standby State in Less than 40 s from the
   Active by Software Reset
• High Reliability: 100,000 Erase/Program Cycles
   20 Years Data Retention Period
• Package:
   LE25S161FDTWG VSOIC8 NB, CASE 753AA
   LE25S161MDTWG SOIC 8, 150 mils, CASE 751BD
   LE25S161PCTXG UDFN8 4 x 3, 0.8P, CASE 506DC
   LE25S161XBTAG WLCSP8, 2.92 x 1.53, CASE 567YR
   KGD