DS2502 ,Memory Chip - Maxim Integrated

The pictures are for reference only, and the specific specifications can be found in the product manual.

Popularity Score

62 points

Part No

DS2502
Manufacturer

Maxim Integrated
ChipWorker Part#

CW81737633
Category

Memory Chip
Package

TO-226-3
Description

EPROM OTP 1Kbit 4Pages x 256 3Pin TO-92
Documentation

Datasheet
Ships from

Moscow
Наличие

In Stock
Estimated Price

$ 2.09

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DS2502 Specifications

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Attribute	Attribute Value

Part Number	DS2502
Manufacturer	Maxim Integrated
ChipWorker Part#	CW81737633
Category	Memory Chip
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	3 Pin
Case/Package	TO-226-3
Supply Voltage (DC)	5.00 V, 6.00 V (max)
Memory Size	125 B
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Operating Temperature	-40℃ ~ 85℃ (TA)
Product Lifecycle Status	Unknown
Packaging	Bulk
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

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Product Description

Description
The DS2502 1Kb Add-Only Memory identifies and stores relevant information about the product to which it is associated. This lot- or product-specific information can be accessed with minimal interface—for example, a single port pin of a microcontroller. The DS2502 consists of a factory-lasered registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (09h) plus 1Kb of EPROM which is user-programmable. The power to program and read the DS2502 is derived entirely from the 1-Wire® communication line.
Data is transferred serially via the 1-Wire protocol which requires only a single data lead and a ground return. The entire device can be programmed and then write-protected if desired. Alternatively, the part may be programmed multiple times with new data being appended to, but not overwriting, existing data with each subsequent programming of the device. Note: Individual bits can be changed only from a logical 1 to a logical 0, never from a logical 0 to a logical 1. A provision is also included for indicating that a certain page or pages of data are no longer valid and have been replaced with new or updated data that is now residing at an alternate page address. This page address redirection allows software to patch data and enhance the flexibility of the device as a stand-alone database. The 48-bit serial number that is factory-lasered into each DS2502 provides a guaranteed unique identity which allows for absolute traceability. The familiar TO-92 or SOIC or TSOC packages provide a compact enclosure that allows standard assembly equipment to handle the device easily for attachment to printed circuit boards or wiring. Typical applications include storage of calibration constants, maintenance records, asset tracking, product revision status, and access codes.

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