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X5645, X5645P X9511WP, X5645P.

Table of contents:
Info of X5645
Info of X5645P X9511WP
Info of X5645P.

X5645, X5645P X9511WP, X5645P. Selling Leads, Datasheet

MFG:X Package Cooled:DIP-8 D/C:08+

X5645, X5645P X9511WP, X5645P. Datasheet download

Five Points

Part Number: X5645

MFG: X

Package Cooled: DIP-8

D/C: 08+

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X5645 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 can execute 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 device's low V_CC detection circuitry protects the user's system from low voltage conditions, resetting the system when V_CC falls below the minimum V_CC trip point. RESET/RESET is asserted until V_CC returns to proper operating level and stabilizes. Five industry standard V_TRIP thresholds are available, however,Intersil's unique circuits allow the threshold to be reprogrammed to meet custom requirements or to fine-tune the threshold for applications requiring higher precision.

X5645 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

X5645 Features

• Selectable watchdog timer
• Low V_CC detection 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
• Determine watchdog or low voltage reset with a volatile flag bit
• Long battery life with low power consumption
   -<50A max standby current, watchdog on
   -<1A max standby current, watchdog off
   -<400A max active current during read
• 64Kbits 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 operation
• Available packages
   -8-lead PDIP, 14-lead SOIC

X5645 Connection Diagram

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