My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DS9097E
- Part No.:
- DS9097E
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized
- Package:
- -
- Datasheet:
-
DS9097E.pdf
- Description:
- DS9097 COM PORT ADAPTER
- Quantity:
- Payment:
- Shipping:
Inventory:4,211
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DS9097E from Maxim Integrated is a discontinued RS-232 to 1-Wire® universal adapter enabling Windows-based PCs to communicate with 1-Wire devices via RJ11 port; supports standard and overdrive speeds (9.6–115.2 kbps), true-ground RS-232 interface (±5V to ±12V for DB9), and 5V strong pullup for temperature/EEPROM devices.
For engineers reviewing the DS9097E datasheet, DS9097E pinout, DS9097E application, or DS9097E equivalent, key selection considerations include RS-232 voltage compatibility, 1-Wire speed mode support, external power requirements for EPROM programming, RJ11 connectivity, and software driver availability for legacy Windows systems.
Technical Context
The DS9097E implements active 1-Wire signal generation using the DS2480B serial line driver IC, with RXD/TXD polarity select tied to VDD (noninverting). It operates in byte-mode: each RS-232 data byte triggers eight precisely timed 1-Wire time slots.
It requires an RS-232 port supporting ≥±5V signaling (DB9 version) or ≥±6V (DB25 version); external 12V supply is mandatory for EPROM write functionality on DB25 variants, while 6–9V suffices for non-EPROM operation under low-voltage COM ports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface Type | RS-232 to 1-Wire® bridge adapter with active signal generation |
| Data Rates | 9.6, 19.2, 57.6, and 115.2 kbps - selectable via software for standard/overdrive 1-Wire timing |
| RS-232 Voltage Range | DB9: ±5V to ±12V; DB25: ±6V to ±12V - defines minimum COM port compatibility |
| 1-Wire Pullup | Strong 5V pullup - enables reliable communication with parasitically powered temperature and EEPROM devices |
| EPROM Programming | Supported only on DB25 variant with externally supplied 12V at ≥10mA - required for DS2502/DS2432 writes |
| Connector Types | Standard DB9 or DB25 female + 6-pin RJ11 - ensures plug-and-play cabling with 1-Wire network cables |
Pinout & Package
DS9097E is offered in DB9 and DB25 versions with identical functional pin mapping per connector type. Package is molded plastic housing with integrated RJ11 jack and optional DC power input (DB25 only).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DB9 Pin 2 (RXD) | RS-232 Receive Input | Accepts inverted TTL-level signals from PC COM port; drives DS2480B RX input |
| DB9 Pin 3 (TXD) | RS-232 Transmit Output | Drives inverted TTL-level output from DS2480B TX to PC COM port |
| DB9 Pin 4 (DTR) | Control Signal Output | Provides handshake control to DS2480B DQ line for 1-Wire bus management |
| DB9 Pin 5 (GND) | Signal Reference | Common ground reference for RS-232 and 1-Wire circuits - enables true-ground interface |
| DB9 Pin 7 (RTS) | Control Signal Output | Used for additional bus control and timing synchronization with DS2480B |
Key Features
| Feature | Design Value |
|---|---|
| True-Ground RS-232 Interface | Eliminates need for level-shifting isolation; allows direct connection to standard COM ports without signal inversion hardware |
| Software-Selectable Baud Rates | Enables optimization of 1-Wire timing: 9.6 kbps for standard speed, 57.6/115.2 kbps for overdrive-capable devices |
| Integrated DS2480B Driver | Provides precise 1-Wire waveform generation, CRC checking, and automatic recovery from bus contention |
| Strong 5V Pullup Circuitry | Supplies sufficient current to power parasitic 1-Wire devices like DS18B20 and DS2431 during read/write operations |
| RJ11-Based 1-Wire Connectivity | Supports standardized 1-Wire cabling (e.g., DS1402D-25, DS1402D-100) without custom wiring or soldering |
Applications
| Industrial Temperature Monitoring | Asset Authentication & ID Tracking |
|---|---|
Use Scenario: Deploying DS18B20 sensors across factory floors for real-time thermal profiling of machinery and environmental zones. IC Role / Device Role / Timing Role: DS9097E acts as the host-side 1-Wire master, converting PC RS-232 commands into precise 1-Wire time slots for sensor interrogation and calibration. Use Value: Enables legacy industrial PCs with COM ports to acquire calibrated temperature data without USB adapters or embedded microcontrollers. | Use Scenario: Verifying authenticity of field-service tools using DS2401 silicon serial numbers attached to tool handles. IC Role / Device Role / Timing Role: DS9097E provides reliable read access to ROM ID and memory pages of DS2401/DS2411 devices via RJ11-connected probes. Use Value: Eliminates need for dedicated readers; leverages existing Windows PCs for rapid, portable ID verification in maintenance workflows. |
| Legacy System Sensor Integration | Calibration Data Logging |
Use Scenario: Integrating DS2431 1-Wire EEPROMs into aging test equipment to store calibration coefficients and firmware revision history. IC Role / Device Role / Timing Role: DS9097E serves as bidirectional 1-Wire interface for reading/writing EEPROM contents using standard COM port drivers. Use Value: Extends service life of legacy instruments by enabling field-updatable calibration data without hardware redesign. | Use Scenario: Recording thermocouple calibration curves stored in DS2433 4kb EEPROMs during lab equipment certification. IC Role / Device Role / Timing Role: DS9097E executes deterministic 1-Wire write sequences to ensure bit-level integrity during high-reliability data storage. Use Value: Guarantees traceable, tamper-resistant calibration logs compatible with ISO/IEC 17025 documentation requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 1-Wire host interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS9097U-009# | Includes factory-installed DS2502 identification chip; otherwise identical electrical and mechanical specs to DS9097E | Pre-provisioned for secure authentication use cases requiring factory-programmed IDs | Select when out-of-box ID provisioning is required; DS9097E lacks this chip and must be programmed separately if needed |
| DS9490R | USB-based 1-Wire adapter using DS2490 controller; no RS-232 interface; supports higher overdrive speeds up to 2 Mbps | Designed for modern PCs lacking COM ports; requires USB driver stack instead of legacy serial port configuration | Choose for new deployments on USB-only platforms; DS9097E remains optimal for COM-port-equipped industrial or lab PCs |
Compared with DS9097U-009#, DS9097E offers identical 1-Wire functionality but omits the pre-programmed DS2502 ID chip - reducing cost where authentication isn't factory-required. Compared with DS9490R, DS9097E preserves compatibility with legacy RS-232 infrastructure but lacks USB convenience and higher-speed overdrive capability.
Availability
DS9097E is available at Aetrix Electronics and suitable for industrial temperature monitoring, asset authentication, legacy system sensor integration, and calibration data logging requiring stable component supply for long-lifecycle embedded instrumentation.
Supply support for DS9097E 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) designs precision analog, mixed-signal, and digital ICs for industrial, medical, communications, and computing applications.
The DS9097E belongs to Maxim's 1-Wire interface product line, engineered to simplify host-side connectivity to low-cost, single-conductor 1-Wire sensor and memory devices in legacy PC-based systems.
FAQ
Is DS9097E still in production or available for new designs?
No - DS9097E is a discontinued part. Maxim removed references to DS9097E in the June 2011 revision of the DS9097U datasheet. Aetrix Electronics maintains limited legacy stock for repair and maintenance of installed base systems, but it is not recommended for new designs. Engineers should evaluate DS9490R or DS2480B-based custom solutions for future projects.
What is the difference between DS9097E and DS9097U-009#?
The DS9097E and DS9097U-009# share identical RS-232 interface logic, 1-Wire timing, and physical packaging. The sole confirmed difference is that DS9097U-009# includes a factory-programmed DS2502 identification chip, while DS9097E does not. No electrical or functional divergence exists beyond this provisioned ID element.
Can DS9097E program DS2432 or DS2502 EPROM devices?
No - DS9097E cannot program EPROM devices. Only the DB25 variant DS9097U-E25 (with external 12V supply) supports EPROM write functionality. DS9097E is functionally equivalent to the DB9 variants (e.g., DS9097U-S09#), which are read-only for non-EPROM 1-Wire devices like DS18B20 and DS2431.
Does DS9097E require special drivers or software to operate?
Yes - DS9097E requires Maxim's legacy 1-Wire drivers, available free from maximintegrated.com/1-Wiredrivers. These include Windows COM port wrappers (owcom32.dll) and API libraries for C/C++ and Visual Basic. No native OS support exists; driver installation and COM port configuration (e.g., 9600 bps, no flow control) are mandatory before 1-Wire communication.
What is the maximum cable length supported by DS9097E for reliable 1-Wire communication?
DS9097E supports up to 100 meters using standard twisted-pair 1-Wire network cables (e.g., DS1402D-100) at standard speed (16.3 µs slot time). At overdrive speed (2.1 µs slot time), maximum reliable length reduces to ~25 meters due to signal rise/fall time limitations and noise susceptibility on unshielded lines.
Is DS9097E compatible with modern Windows 10 or Windows 11 systems?
DS9097E can operate on Windows 10/11 only with signed legacy drivers or test-signing mode enabled, as Maxim's original drivers lack WHQL certification for newer OS versions. Hardware-level compatibility remains intact, but driver installation may require manual INF editing or compatibility mode settings - success varies by system configuration and security policy.
DS9097E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- -
- Interface:
- -
- Voltage - Supply:
- -
- Supplier Device Package:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
DS9097E FAQ
1.How can I place an order for DS9097E through Aetrix?
Please submit a Request for Quotation (RFQ) for DS9097E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS9097E reliable?
The price and inventory of DS9097E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS9097E is usually 5 days.
3.What payment methods are accepted for DS9097E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS9097E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS9097E?
DS9097E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS9097E order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS9097E?
For technical support, including DS9097E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS9097E requirements.
6.How does Aetrix verify that DS9097E is sourced from the original manufacturer or authorized distributors?
All DS9097E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS9097E meets industry standards.
7.What is the process for return or replacement of DS9097E?
All DS9097E units undergo pre-shipment inspection (PSI). If there is an issue with DS9097E, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS9097E part is unused and in its original packaging.
Return procedure for DS9097E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS9097E Tags
-
NVT4857UKAZ
NXP Semiconductors
-
TCA8418RTWR
Texas Instruments
-
PCA9546APWR
Texas Instruments
-
MD0100N8-G
Microchip Technology
-
PCA9548APW,118
NXP Semiconductors
-
PCA9540BDP,118
NXP Semiconductors
-
PCA9548APWR
Texas Instruments
-
PCA9546APW,118
NXP Semiconductors
-
PTN3360DBS,518
NXP Semiconductors
-
PCA9546ABS,118
NXP Semiconductors
-
PCA9518PWR
Texas Instruments
-
PCA9545APW,118
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
