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DS2502

EPROM - OTP Memory IC 1Kbit 1-Wire® TO-92-3

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DS2502 General Description

EPROM - OTP Memory IC 1Kbit 1-Wire® TO-92-3

Key Features

  • 1024 bits Electrically Programmable Read Only Memory (EPROM) communicates with the economy of one signal plus ground
  • Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC tester) assures absolute traceability because no two parts are alike
  • Built-in multidrop controller ensures compatibility with other MicroLAN products
  • EPROM partitioned into four 256-bit pages for randomly accessing packetized data
  • Each memory page can be permanently write-protected to prevent tampering
  • Device is an “add only” memory where additional data can be programmed into EPROM without disturbing existing data
  • Architecture allows software to patch data by superseding an old page in favor of a newly programmed page
  • Reduces control, address, data, power, and programming signals to a single data pin
  • Directly connects to a single port pin of a microprocessor and communicates at up to 16.3 kbits per second
  • 8-bit family code specifies DS2502 communications requirements to reader
  • Presence detector acknowledges when the reader first applies voltage
  • Low cost TO-92 or 8-pin SO, SOT-23 (3-pin), TSOC and flip chip surface mount package
  • Reads over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C; programs at 11.5V to 12.0V from -40°C to +50°C

Specifications

Part Life Cycle Code Obsolete Pin Count 3
Reach Compliance Code not_compliant ECCN Code EAR99
HTS Code 8542.32.00.71 Access Time-Max 15000 ns
Additional Feature MICROLAN COMPATIBLE I/O Type COMMON
JESD-30 Code O-PBCY-T3 JESD-609 Code e0
Memory Density 1024 bit Memory IC Type OTP ROM
Memory Width 8 Number of Functions 1
Number of Terminals 3 Number of Words 128 words
Number of Words Code 128 Operating Mode ASYNCHRONOUS
Operating Temperature-Max 85 °C Operating Temperature-Min -40 °C
Organization 128X8 Parallel/Serial SERIAL
Qualification Status Not Qualified Supply Voltage-Max (Vsup) 6 V
Supply Voltage-Min (Vsup) 2.8 V Supply Voltage-Nom (Vsup) 5 V
Surface Mount NO Technology CMOS
Temperature Grade INDUSTRIAL Terminal Finish TIN LEAD
Terminal Form THROUGH-HOLE Terminal Pitch 1.27 mm
Terminal Position BOTTOM

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