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DS1972

Features: ·1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits·Individual Memory Pages can be Permanently Write Protected or Put in EPROM-Emulation Mode ( Write to 0 )·Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise·IEC 1000-4-2 Level 4 ESD Prot...

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SeekIC No. : 004328734 Detail

DS1972: Features: ·1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits·Individual Memory Pages can be Permanently Write Protected or Put in EPROM-Emulation Mode ( Write to 0 )·Switchpoint Hys...

DS1972 Data Sheet

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Part Number:
DS1972
Supply Ability:
5000

Price Break

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

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Upload time: 2024/5/19

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Product Details

Description



Features:

·1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits
·Individual Memory Pages can be Permanently Write Protected or Put in EPROM-Emulation Mode ("Write to 0")
·Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise
·IEC 1000-4-2 Level 4 ESD Protection (8kV Contact, 15kV Air, typical)
·Reads and Writes Over a Wide Voltage Range of 2.8V to 5.25V from -40°C to +85°C
·Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol


Application

·Access Control/Parking Meter
·Work-In-Progress Tracking
·Tool Management
·Inventory Control
·Maintenance/Inspection Data Storage


Specifications

I/O Voltage to GND...................................... -0.5V, +6V
I/O Sink Current...................................................20mA
Operating Temperature Range .........-40°C to +85°C
Junction Temperature..................................... +150°C
Storage Temperature Range ............-40°C to +85°C


Description

The DS1972 is a 1024-bit, 1-Wire® EEPROM organized as four memory pages of 256 bits each in a rugged iButton package. Data is written to an 8- byte scratchpad, verified, and then copied to the EEPROM memory. As a special feature, the four memory pages can individually be write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. The DS1972 communicates over the single-conductor 1-Wire bus. The communication follows the standard Dallas Semiconductor 1-Wire protocol. Each device has its own unalterable and unique 64-bit ROM registration number that is factory lasered into the device. The registration number is used to address the device in a multidrop 1-Wire net environment.




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