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V3023

Features: ` Built-in crystal with digital trimming and temperature compensation facilities` Can be synchronised to 50 Hz or nearest s/min` 50 ns access time with 50 pF load capacitance` Standby on power down typically 1.2 A` Universal interface compatible with both Intel and Motorola` Simple 8 bit...

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SeekIC No. : 004539755 Detail

V3023: Features: ` Built-in crystal with digital trimming and temperature compensation facilities` Can be synchronised to 50 Hz or nearest s/min` 50 ns access time with 50 pF load capacitance` Standby on p...

V3023 Data Sheet

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Part Number:
V3023
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:

` Built-in crystal with digital trimming and temperature compensation facilities
` Can be synchronised to 50 Hz or nearest s/min
` 50 ns access time with 50 pF load capacitance
` Standby on power down typically 1.2 A
` Universal interface compatible with both Intel and Motorola
` Simple 8 bit interface with no delays or busy flags
` 16 bytes of user RAM
` Power fail input disables during power up / down of reset
` Bus can be in tri-state in power fail mode
` Wide voltage range: 2.0 V to 5.5 V
` 12 or 24 hour data formats
` Time to 1/100 of a second
` Leap year correction and week number calculation
` Alarm and timer interrupts
` Programmable interrupts: 10 ms, 100 ms, s or min
` Sleep mode capability
` Alarm programmable up to one month
` Timer measures elapsed time up to 24 hours
` Temperature range: -40 to +85
` Package SO28




Application

· Industrial controllers
· Alarm systems with periodic wake up
· PABX and telephone systems
· Point of sale terminals
· Automotive electronics




Pinout

Connection Diagram




Specifications

Paramete Symbol Conditions
Maximum voltage at VDD VDDmax VSS + 7.0V
Max. voltage at remaining pins Vmax VDD + 0.3V
Min. voltage on all pins Vmin VSS 0.3V
Maximum storage temperature TSTOmax +125
Minimum storage temperature TSTOmin -55
Maximum electrostatic
discharge to MIL-STD-883C
method 3015.7 with ref. to VSS		 VSmax 1000V
Maximum soldering conditions TSmax 250 x 10s
Shock resistance 5000 g.
0.3ms, ½ sine

Stresses above these listed maximum ratings may cause permanent damages to the device. Exposure beyond specified operating conditions may affect device reliabilit or cause malfunction.






Description

The V3023 is a low power CMOS real time clock with a built in crystal. Standby current is typically 1.2 A and the access time is 50 ns. The interface is 8 bits with multiplexed address and data bus. Multiplexing of address and data is handled by the input lineA /D. There are no busy flags in the V3023, internal time update cycles are invisible to the user's software. Time data can be read from the V3023 in 12 or 24 hour data formats. An external signal puts the V3023 in standby mode. Even in standby, the V3023 pulls theIRQ pin active low on an internal alarm interrupt. Calendar functions include leap year correction and week number calculation. Time precision can be achieved by digital trimming. The V3023 can be synchronized to an external 50 Hz signal or to the nearest second or minute.






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