Features: • Selectable time out watchdog timer• 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...

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X5043 Picture
SeekIC No. : 004547324 Detail

X5043: Features: • Selectable time out watchdog timer• Low VCC detection and reset assertion-Five standard reset threshold voltages-Re-program low VCC reset threshold voltage using special prog...

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/2/22

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Product Details



• Selectable time out watchdog timer
• 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
-<50A max standby current, watchdog on
-<10A max standby current, watchdog off
-<2mA max active current during read
• 2.7V to 5.5V and 4.5V to 5.5V power supply versions
• 4Kbits of EEPROM1M write cycle endurance
• Save critical data with Block Lock™ memory
-Protect 1/4, 1/2, all or none of EEPROM array
• Built-in inadvertent write protection
-Write enable latch
-Write protect pin
• 3.3MHz clock rate
• Minimize programming time
-16-byte page write mode
-Self-timed write cycle
-5ms write cycle time (typical)
• SPI modes (0,0 & 1,1)
• Available packages
-8-lead MSOP, 8-lead SOIC, 8-pin PDIP
-14-lead TSSOP


  Connection Diagram


Temperature under bias ....................65°C to +135°C
Storage temperature ........................65°C to +150°C
Voltage on any pin with
respect to VSS......................................1.0V to +7V
D.C. output current .................................................. 5mA
Lead temperature (soldering, 10 seconds)............300°C


These devices X5043 combine four popular functions, Poweron Reset Control, Watchdog Timer, 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.

Applying power to the device activates the power on reset circuit which holds RESET/RESET active for a period of time. This allows the power supply and oscillator to stabilize before the processor executes code.

The Watchdog Timer X5043 provides an independent protection mechanism for microcontrollers. When the microcontroller fails to restart a timer within a selectable time out interval, the device activates the RESET/RESET signal. The user selects the interval from three preset values. Once selected, the interval does not change, even after cycling the power.

The X5043's low VCC detection circuitry protects the user's system from low voltage conditions, resetting the system when VCC falls below the minimum VCC trip point. RESET/RESET is asserted until VCC returns to proper operating level and stabilizes. Five industry standard VTRIP thresholds are available, however,Xicor's unique circuits allow the threshold to be reprogrammed to meet custom requirements or to fine-tune the threshold for applications requiring higher precision.

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