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Analog Devices DS28E07+ — Analog & Data Acquisition
Analog Devices

Maxim DS28E07+ 1Kbit 1-Wire EEPROM, TO-92-3, 2 µs Access

MPNDS28E07+
End of Life

Maxim DS28E07+, 1Kbit 1-Wire EEPROM, 2 µs access time, 256 x 4 organization, 3V to 5.25V supply, -40°C to +85°C, TO-92-3 through-hole package.

$1.26Ref. price · indicative, final on quote
DS28E07+ datasheet
PackagingTO-226-3, TO-92-3 (TO-226AA)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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Specifications

DS28E07+ Technical Specifications
ParameterValue
Memory typeNon-Volatile
Mounting typeThrough Hole
Voltage3V ~ 5.25V
Memory interface1-Wire®
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
TechnologyEEPROM
Access time2 µs
Memory size1Kbit
Memory formatEEPROM
CaseTO-226-3, TO-92-3 (TO-226AA)
Memory organization256 x 4

Product details

1-Wire EEPROM in a three-pin TO-92

The Maxim DS28E07+ is a 1Kbit serial EEPROM that communicates over a single-contact 1-Wire interface, needing only one data line and a ground return to transfer data to a host microcontroller. Organized as 256 x 4 bits, it stores small configuration parameters, calibration constants, or serialisation data in a non-volatile array. The 2 µs access time keeps read cycles tight enough that a typical MCU polling the bus does not need extra wait states. Supply range spans 3V to 5.25V, covering both 3.3V and 5V logic rails without a level translator.

Through-hole footprint, industrial temperature range

The DS28E07+ comes in a TO-92-3 through-hole package (TO-226-3, TO-92-3 (TO-226AA)), the same three-lead outline used by many small-signal transistors and temperature sensors. It drops into a standard 0.1-inch pitch PCB footprint with no reflow profile needed — hand-solder or wave-solder friendly. The operating temperature range of -40°C to +85°C qualifies it for industrial environments, outdoor telecom cabinets, and factory-floor sensor nodes where commercial-grade parts drift out of spec.

Active production, no end-of-life concern

Maxim lists the DS28E07+ as Active on the product status. ROHS3 compliant per the compliance listing.

Frequently asked questions

Is DS28E07+ compatible with 3.3V logic?

Yes. The supply range of 3V to 5.25V includes 3.3V, so the part operates directly on a 3.3V rail. The 1-Wire interface uses a single data line with an open-drain driver and external pull-up; at 3.3V the logic thresholds are compatible with most 3.3V microcontrollers without level shifting.

How many bytes can DS28E07+ store?

The DS28E07+ stores 1Kbit of non-volatile memory, organized as 256 x 4 bits. That equals 128 bytes of user-accessible storage (since 256 addresses × 4 bits = 1024 bits = 128 bytes).

What is the difference between DS28E07+ and DS2431?

The DS2431 is a 1Kbit 1-Wire EEPROM in an SOIC-8 package, while the DS28E07+ is the same 1Kbit density and 1-Wire interface but in a TO-92-3 through-hole package. The DS28E07+ also uses a 256 x 4 organization versus the DS2431's 256 x 4 as well — the primary difference is the package footprint and mounting style, not the memory array or protocol.