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X5043, X5043 I, X5043-2.7V

Table of contents:
Info of X5043
Info of X5043 I
Info of X5043-2.7V

X5043, X5043 I, X5043-2.7V Selling Leads, Datasheet

MFG:XICOR Package Cooled:XICOR D/C:04+

X5043, X5043 I, X5043-2.7V Datasheet download

Five Points

Part Number: X5043

MFG: XICOR

Package Cooled: XICOR

D/C: 04+

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X5043 General Description

These devices 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 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 devices low VCC detection circuitry protects the users 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. Four industry standard VTRIP thresholds are available, however, Intersils unique circuits allow the threshold to be reprogrammed to meet custom requirements or to fine-tune the threshold for applications requiring higher precision. The memory portion of the device is a CMOS Serial EEPROM array with Intersils block lock protection. The array is internally organized as 512 x 8. The device features a Serial Peripheral Interface (SPI) and software protocol allowing operation on a simple fourwire bus. The device utilizes Intersils proprietary Direct Write™ cell, providing a minimum endurance of 100,000 cycles and a minimum data retention of 100 years.

X5043 Maximum Ratings

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

X5043 Features

• Selectable time out watchdog timer
• Low V_CCdetection and reset assertion
   -Five standard reset threshold voltages
   -Re-program low V_CC reset threshold voltage using special programming sequence.
   -Reset signal valid to V_CC = 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

X5043 Connection Diagram

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