Analog Devices Inc./Maxim Integrated DS1702K

Overview

DS1702K from Maxim Integrated is a 2-wire thermal device evaluation kit designed to validate and characterize DS1621, DS1721, DS1624, DS1629, DS75, and DS1775 digital temperature sensors via serial interface. It includes the 87-1702K-000 demo board, DS9123 Universal Brick serial adapter, Windows-compatible software suites (DS1721K.exe, DS1624K.exe, DS1629K.exe, DS75K.exe), and full register-level read/write access across all supported devices. It enables real-time temperature monitoring from –55°C to +125°C in both Celsius and Fahrenheit for lab validation and firmware integration.

For engineers reviewing the DS1702K datasheet, DS1702K pinout, DS1702K application, or DS1702K equivalent, this kit supports rapid functional verification of 2-wire (I²C-compatible) temperature sensors with configurable address selection, alarm threshold programming, resolution control, EEPROM access (for DS1624), and clock/calendar testing (for DS1629), all through a unified Windows GUI with tabbed register, charting, and application interfaces.

Technical Context

The DS1702K is a hardware-software integrated evaluation platform-not an IC or sensor itself-centered on the 87-1702K-000 2-wire demo board. It interfaces with host PCs via RS-232 using the DS9123 Universal Brick module and requires an external +2.7V to +5V regulated power supply delivered via banana-jack leads.

It supports multiple device families through jumper-configurable socketing (DIP and SO packages), software-selectable I²C addresses (000–111), and device-specific command sets-including Start/Stop Convert T (EEh/22h), Read Temperature (AAh), Access Config (ACh), and device-unique functions like DS1624's EEPROM access (17h) and DS1629's clock/calendar register (C0h).

Key Specifications

Availability

DS1702K is available at Aetrix Electronics and suitable for thermal sensor validation, embedded firmware development, production test fixture prototyping, and academic lab instruction requiring stable component supply and legacy Windows OS compatibility.

Supply support for DS1702K includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in precision analog, mixed-signal, and high-reliability ICs for industrial, automotive, and computing applications.

The DS1702K belongs to Maxim's thermal sensor evaluation kit product line, engineered to accelerate design-in of their 2-wire digital temperature sensors by providing standardized hardware abstraction, cross-device software interoperability, and register-level debug visibility.

FAQ

What is the DS1702K, and is it a semiconductor IC?

The DS1702K is not an IC-it is a complete evaluation kit comprising the 87-1702K-000 2-wire demo board, DS9123 Universal Brick serial adapter, CD-ROM with device-specific software (DS1721K.exe, DS1624K.exe, etc.), and documentation. Its purpose is functional validation of Maxim's I²C-compatible temperature sensors, not circuit integration as a component. The DS1702K itself has no die, no package, and no electrical specifications beyond its board-level interface requirements.

Which temperature sensors does the DS1702K support, and how are they selected?

The DS1702K supports six discrete Maxim temperature sensors: DS1621, DS1721, DS1624, DS1629, DS75, and DS1775. Selection is software-driven-each runs its own executable (e.g., DS1624K.exe) and uses jumper configurations (JP1–JP13) on the 87-1702K-000 board to match socket type (DIP vs. SO), I²C address, and signal routing (e.g., JP11/JP12 for DS1629 crystal, JP9/JP10/JP13 for non-zero addresses). No hardware modification is needed beyond jumper placement.

Does the DS1702K require external power, and what are the voltage requirements?

Yes-the DS1702K's 87-1702K-000 demo board requires an external +2.7V to +5V regulated DC power supply connected via banana-jack leads. The DS9123 Universal Brick draws power from the host PC's RS-232 port and does not supply power to the board. Operating outside this range may prevent sensor communication or damage socketed devices; the board provides no onboard voltage regulation or protection circuitry.

Can the DS1702K be used with modern Windows versions like Windows 10 or 11?

No-the DS1702K software suite (DS1721K.exe, DS1624K.exe, etc.) is explicitly certified only for Windows 95, 98, and NT. It lacks 64-bit support, modern COM port driver compatibility, and UAC-compliant installation logic. While limited functionality may be achieved via virtual machines or compatibility mode, official operation, register access, and charting are unsupported on Windows 10/11 without third-party emulation layers.

What role does the DS9123 Universal Brick play in the DS1702K system?

The DS9123 Universal Brick is a mandatory RS-232-to-2-wire level-shifting interface module included in the DS1702K kit. It converts TTL-level 2-wire signals from the 87-1702K-000 board into RS-232 voltage levels for PC communication and supplies power to itself from the serial port. Without the DS9123 physically connected and recognized, the DS1702K software fails to initialize-even if the demo board is powered and populated-halting execution until reboot or task termination.