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X45620

Features: • Dual voltage monitoring• Active low reset outputs• Two standard reset threshold voltages-Factory programmable threshold• Lowline Output - zero delayed POR• Reset signal valid to VCC = 1V• System battery switch-over circuitry• Selectable watchdo...

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SeekIC No. : 004547315 Detail

X45620: Features: • Dual voltage monitoring• Active low reset outputs• Two standard reset threshold voltages-Factory programmable threshold• Lowline Output - zero delayed POR• ...

X45620 Data Sheet

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Part Number:
X45620
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

• Dual voltage monitoring
• Active low reset outputs
• Two standard reset threshold voltages
-Factory programmable threshold
• Lowline Output - zero delayed POR
• Reset signal valid to VCC = 1V
• System battery switch-over circuitry
• Selectable watchdog timer
-(0.15s, 0.4s, 0.8s, off)
• 256Kbits 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 programmable Block Lock™ protection
-In circuit programmable ROM mode
• Minimize EEPROM programming time
-64 byte page write mode
-Self-timed write cycle
-5ms write cycle time (typical)
• 400kHz 2-wire Interface
• 2.7V to 5.5V power supply operation
• Available package - 20-lead TSSOP
• Dual supervisor
• Battery switch and output




Pinout

Connection Diagram




Specifications

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 +6V
D.C. output current
(all output pins except VOUT).............................5mA
D.C. output current VOUT.........................................50mA
Lead temperature (soldering, 10 seconds)........... 300°C




Description

The Intersil X45620 combines power-on reset control,battery switch circuit, watchdog timer, supply voltage supervision, secondary voltage supervision, block lock protect and serial EEPROM 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 holdsRESET active for a period of time. This allows the power supply and oscillator to stabilize before the processor can execute code.

A system battery switch circuit compares VCC (V1MON) with VBATT input and connects VOUT to whichever is higher. This provides voltage to external SRAM or other circuits in the event of main power failure. The X45620 can drive 50mA from VCC and 250A from VBATT. The device switches to VBATT when VCC drops below the low VCC voltage threshold and VBATT > VCC.






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