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Vendor: NS
Package Cooled: SMD
D/C: 08+


Software Data Protection The M28LV16 offers a software controlled write protection facility that allows the user to inhibit all write modes to the device including the Chip Erase instruction. This can be useful in protecting the memory from inadvertent write cycles that may occur due to uncontrolled bus conditions. The M28LV16is shipped as standard in the unpro- tected state meaning that the memory contents can be changed as required by the user. After the Software Data Protection enable algorithm is is- sued, the device enters the Protect Mode of operation where no further write commands have any effect on the memory contents. The device remains in this mode until a valid Software Data Protection (SDP) disable sequence is received whereby the device reverts to its unprotected state. The Software Data Protection is fully non- volatile and is not changed by power on/off se- quences. To enable the Software Data Protection (SDP) the device requires the user to write (with a Page Write) three specific data bytes to three specific memory locations as per Figure 5. Similarly to disable the Software Data Protection the user has to write specific data bytes into six different locations as per Figure 6 (with a Page Write). This complex series ensures that the user will never enable or disable the Software Data Protection accidentally.


The 0.8/CR device is available as a dual-band (EGSM900/DCS1800) front end or as a tri-band (EGSM900/DCS1800/PCS1900) front end for Global System for Mobile Communications (GSM) mobile telephony applications. Each device integrates all the required front-end components after the frequency pre-select filters. These components include the Low Noise Amplifiers (LNAs), the internal image-reject filters, mixers, and a Local Oscillator (LO) amplifier.


0.8/CR is a photorelay and consists of a GaAs infrared emitting diode optically coupled to a photo−MOSFET in a 8−pin DIP package (DIP8). This photorelay has characteristics of low−on resistance when it turns on. It is suitable for 48 V power line on / off switches.


  • Part Name
  • Q'ty
  • Description
  • Vendor
  • Date Code
  • Date
  • Quotation
  • 0.8/CR
  • 100624
  • NS
  • SMD
  • 2017-10-18
  • 0.8/CR
  • 100624
  • NS
  • SMD
  • 2017-10-18
  • 0.8192M
  • 20
  • 钟振(OSC)
  • KDS
  • 20.6×12.6
  • 2017-10-18
  • 0.82RJ
  • 5000
  • KOA
  • 02+
  • 2017-10-18
  • 0.8D
  • 4000
  • XLL
  • O603
  • 2017-10-18

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