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                                                                                                  1. Home
                                                                                                  2. Semiconductors - ICs
                                                                                                  3. Memory
                                                                                                  4. EEPROM
                                                                                                  Print Page

                                                                                                  DS28EC20+

                                                                                                  EEPROM, 20 Kbit, 20K x 1bit, 1-Wire, TO-92, 3 Pins

                                                                                                  ANALOG DEVICES
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  ANALOG DEVICES DS28EC20+
                                                                                                  ManufacturerANALOG DEVICES
                                                                                                  Manufacturer Part NoDS28EC20+
                                                                                                  Newark Part No.73Y1609
                                                                                                  Product Range20Kbit 1-Wire Serial EEPROM
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
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                                                                                                  Product Information

                                                                                                  ANALOG DEVICES
                                                                                                  ManufacturerANALOG DEVICES
                                                                                                  Manufacturer Part NoDS28EC20+
                                                                                                  Newark Part No.73Y1609
                                                                                                  Product Range20Kbit 1-Wire Serial EEPROM
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Memory Size20Kbit
                                                                                                  Memory Density20Kbit
                                                                                                  Memory Configuration20K x 1bit
                                                                                                  EEPROM Memory Configuration20K x 1bit
                                                                                                  Memory Interface TypeSerial 1-Wire
                                                                                                  Interfaces1-Wire
                                                                                                  Clock Frequency-
                                                                                                  Clock Frequency Max-
                                                                                                  IC Case / PackageTO-92
                                                                                                  Memory Case StyleTO-92
                                                                                                  No. of Pins3Pins
                                                                                                  Supply Voltage Min4.75V
                                                                                                  Supply Voltage Max5.25V
                                                                                                  IC MountingThrough Hole
                                                                                                  Operating Temperature Min-40°C
                                                                                                  Operating Temperature Max85°C
                                                                                                  Product Range20Kbit 1-Wire Serial EEPROM
                                                                                                  MSLMSL 1 - Unlimited
                                                                                                  SVHCNo SVHC (21-Jan-2025)

                                                                                                  Product Overview

                                                                                                  The DS28EC20+ is a 20Kb 1-wire EEPROM in 3 pin TO-92 package. A 20480bit, 1-wire EEPROM organized as 80 memory pages of 256bits each. An additional page is set aside for control functions. Data is written to a 32byte scratchpad, verified and then copied to EEPROM memory. As a special feature, blocks of eight memory pages can be write protected or put in EPROM emulation mode where bits can only be changed from a 1state to a 0state. It communicates over single conductor 1-wire bus. Device has its own unalterable and unique 64bit ROM registration number. The registration number is used to address device in a multidrop 1-wire net environment. It is used in device authentication, IEEE 1451.4 sensor TEDS, Ink/toner cartridges, medical sensors, PCB identification and wireless base stations.

                                                                                                  • Supply voltage range is 4.75V to 5.25V
                                                                                                  • Operating temperature range from -40°C to 85°C
                                                                                                  • Read and write access highly backward compatible to legacy devices (e.g. DS2433)
                                                                                                  • 256bit scratchpad with strict read/write protocols ensures integrity of data transfer
                                                                                                  • 200K write/erase cycle endurance at +25°C
                                                                                                  • Switchpoint hysteresis and filtering to optimize performance in the presence of noise
                                                                                                  • Communicates to host at 15.4Kbps or 90Kbps using 1-wire protocol
                                                                                                  • IEC 1000-4-2 level 4 ESD protection (±8kV contact, ±15kV air, typical) for I/O pin

                                                                                                  Notes

                                                                                                  ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party

                                                                                                  Technical Specifications

                                                                                                  Memory Size

                                                                                                  20Kbit

                                                                                                  Memory Configuration

                                                                                                  20K x 1bit

                                                                                                  Memory Interface Type

                                                                                                  Serial 1-Wire

                                                                                                  Clock Frequency

                                                                                                  -

                                                                                                  IC Case / Package

                                                                                                  TO-92

                                                                                                  No. of Pins

                                                                                                  3Pins

                                                                                                  Supply Voltage Max

                                                                                                  5.25V

                                                                                                  Operating Temperature Min

                                                                                                  -40°C

                                                                                                  Product Range

                                                                                                  20Kbit 1-Wire Serial EEPROM

                                                                                                  SVHC

                                                                                                  No SVHC (21-Jan-2025)

                                                                                                  Memory Density

                                                                                                  20Kbit

                                                                                                  EEPROM Memory Configuration

                                                                                                  20K x 1bit

                                                                                                  Interfaces

                                                                                                  1-Wire

                                                                                                  Clock Frequency Max

                                                                                                  -

                                                                                                  Memory Case Style

                                                                                                  TO-92

                                                                                                  Supply Voltage Min

                                                                                                  4.75V

                                                                                                  IC Mounting

                                                                                                  Through Hole

                                                                                                  Operating Temperature Max

                                                                                                  85°C

                                                                                                  MSL

                                                                                                  MSL 1 - Unlimited

                                                                                                  Technical Docs (4)

                                                                                                  Technical Data Sheet EN

                                                                                                  Application Note EN

                                                                                                  Product Change Notice EN

                                                                                                  Enhanced Product Overview EN

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                                                                                                  Legislation and Environmental

                                                                                                  US ECCN:EAR99
                                                                                                  EU ECCN:Unknown
                                                                                                  RoHS Compliant:Yes

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:No SVHC (21-Jan-2025)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

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