X5328PIZ-4.5A Datasheet

CPU Supervisor with 32Kbit SPI EEPROM


These devices combine three popular functions, Power-on Reset Control, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.

• Low VCC detection and reset assertion
   —Five standard reset threshold voltages
   —Re-program low VCC reset threshold voltage
      using special programming sequence
   —Reset signal valid to VCC = 1V
• Long battery life with low power consumption
   —<1µA max standby current
   —<400µA max active current during read
• 32Kbits of EEPROM
• Built-in inadvertent write protection
   —Power-up/power-down protection circuitry
   —Protect 0, 1/4, 1/2 or all of EEPROM array with
      Block Lock™ protection
   —In circuit programmable ROM mode
• 2MHz SPI interface modes (0,0 & 1,1)
• Minimize EEPROM programming time
   —32-byte page write mode
   —Self-timed write cycle
   —5ms write cycle time (typical)
• 2.7V to 5.5V and 4.5V to 5.5V power supply
• Available packages
   —14 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP
• Pb-free plus anneal available (RoHS compliant)



Manufacturer information


Renesas Electronics is a semiconductor company with an outstanding portfolio of global market-leading products. Renesas has the technology and capabilities to deliver almost everything required in an age focusing on human needs, including security technologies, miniaturization and power-saving technologies, networking, and interface technologies. Renesas aims to stay one step ahead and to be the true intelligent chip solution provider — the world leader in its field.

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