My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DS1706TESA/T&R
- Part No.:
- DS1706TESA/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS1706TESA/T&R.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,016
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DS1706TESA/T&R from Maxim Integrated is a 3.3V ±5% precision microprocessor supervisory circuit with active-low reset (/RST), watchdog timer (WDS), non-maskable interrupt (NMI), and pushbutton reset (PBRST) functions. It monitors VCC, detects power transients, provides early warning via NMI, and guarantees 130 ms minimum reset pulse width. Used in industrial embedded controllers requiring reliable power-up sequencing and fail-safe recovery.
For engineers reviewing the DS1706TESA/T&R datasheet, DS1706TESA/T&R pinout, DS1706TESA/T&R application, or DS1706TESA/T&R equivalent, this page delivers verified specifications, validated pin roles, confirmed industrial-temperature operation, exact reset threshold (3.08 V typ), and documented watchdog timeout (1.0–2.2 s).
Technical Context
The DS1706TESA/T&R implements a three-function supervisory architecture: (1) precision VCC monitoring using an internal bandgap reference and comparator with 3.08 V typical trip point; (2) debounced pushbutton reset with guaranteed ≥130 ms /RST assertion on PBRST release; (3) watchdog timer with 1.0–2.2 s timeout triggered by ST input strobes and driving WDS low on timeout.
It supports dual reset signaling-active-low /RST output only (no *RST)-and features high-impedance IN pin for external voltage sensing with 1.25 V internal trip reference. NMI pulses last ≥200 ns with 100 µV hysteresis and require ≥5 µs under-trip duration to avoid noise-induced false triggers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 3.00–3.15 V (±5% at 3.3V systems); ensures reset activation before microprocessor brownout |
| Reset Pulse Width | 130–285 ms; guarantees sufficient time for power supply and CPU stabilization during power-up/fail |
| Watchdog Timeout | 1.0–2.2 s; enables software execution monitoring with configurable ST strobe interval |
| NMI Pulse Width | ≥200 ns; provides early power-fail warning with noise immunity against <2 µs glitches |
| Operating Temp | −40°C to +85°C; qualified for industrial environments without derating |
| Supply Current | 50 µA max at VCC < 3.6 V; enables low-power always-on supervision in battery-backed systems |
| IN Pin Reference | 1.25 V ±50 mV; allows flexible external voltage sensing via resistor divider for upstream rail monitoring |
Pinout & Package
DS1706TESA/T&R is housed in an 8-pin SOIC (150-mil) package, RoHS-compliant and tape-and-reel packaged (T&R). Pin assignments are identical across DS1705/DS1706 family variants in SOIC format.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PBRST | Pushbutton Reset Input | Active-low, internally pulled up (40 kΩ typ); debounced to generate ≥130 ms /RST on release |
| VCC | Power Supply Input | 3.0–3.6 V nominal; powers internal comparators, timer, and outputs; trip point 3.08 V typ |
| GND | Ground Reference | Return path for all internal circuits and output drivers; must be low-impedance for noise immunity |
| IN | External Voltage Sense Input | High-impedance (≤1 µA leakage); referenced to 1.25 V internal comparator for custom rail monitoring |
| NMI | Non-Maskable Interrupt Output | Open-drain, active-low; pulses ≥200 ns on IN under-trip; used for early power-fail alert |
| ST | Watchdog Strobe Input | Active-high strobe; resets internal 1–2.2 s timer on rising edge; internally pulled up (180 kΩ) |
| RST | Active-Low Reset Output | Open-drain, active-low; asserted for ≥130 ms on VCC drop or PBRST release; drives microprocessor /RESET |
| WDS | Watchdog Status Output | Open-drain, active-low; driven low for ≥130 ms if ST not strobed within timeout window |
Key Features
| Feature | Design Value |
|---|---|
| 3.3V ±5% VCC Monitoring | Guarantees reset activation at 3.00–3.15 V, matching tight-tolerance 3.3V system requirements |
| Integrated Watchdog Timer | Eliminates need for external RC timing components; timeout programmable via ST signal frequency |
| Debounced Pushbutton Interface | Removes mechanical switch bounce; ensures clean, deterministic ≥130 ms reset pulse on button release |
| Early Warning NMI Output | Provides ≥200 ns interrupt before reset assertion, enabling graceful shutdown or data save routines |
| Pin-Compatible with MAX705/MAX706 | Enables drop-in replacement in existing designs using 8-pin DIP/SOIC/SOP footprints and pin mapping |
Applications
| Industrial PLC Controller | Medical Diagnostic Equipment |
|---|---|
Use Scenario: Power cycling during firmware updates or sensor calibration sequences. IC Role / Device Role / Timing Role: Supervisory IC providing power-on reset, brownout detection, and watchdog-triggered safe state entry. Use Value: Prevents corrupted memory writes and processor lockup by enforcing 130 ms minimum reset hold time and early NMI warning before VCC collapse. |
Use Scenario: Battery-backed operation with periodic self-test and emergency shutdown. IC Role / Device Role / Timing Role: System health monitor generating /RST on undervoltage and WDS on software hang, with NMI for critical alert escalation. Use Value: Ensures compliance with IEC 62304 safety requirements via deterministic reset timing and independent watchdog timeout (1.0–2.2 s). |
| Telecom Remote Terminal Unit | Automotive Infotainment Gateway |
Use Scenario: Field-deployed units exposed to wide ambient temperature swings and unstable DC inputs. IC Role / Device Role / Timing Role: Precision voltage supervisor with −40°C to +85°C operation and external IN-sense for upstream 12V rail monitoring. Use Value: Extends system reliability by detecting pre-failure conditions on primary supply using 1.25 V reference and resistor-divider scaling. |
Use Scenario: Multi-processor domain controller managing CAN, Ethernet, and display subsystems. IC Role / Device Role / Timing Role: Central reset coordinator asserting /RST to all domains and feeding WDS/NMI to MCU for fault logging. Use Value: Synchronizes domain-level recovery with 130 ms reset hold and enables root-cause analysis via timestamped NMI events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX706TESA | Same 3.3V ±5% trip point, identical SOIC-8 package and pinout; higher ICC (80 µA vs. 50 µA) | Valid for legacy Maxim-based designs; lacks DS1706's IN-sense flexibility (no dedicated high-Z sense input) | Select when replacing MAX706-based boards; verify IN functionality not required |
| TPS3808G33DBVR | 3.3V ±2% tighter tolerance, fixed 200 ms reset timeout, no NMI or WDS outputs; SOT-23-6 package | Suitable for cost-sensitive, space-constrained applications needing only basic reset; no watchdog or early-warning capability | Select when only precise reset is needed and NMI/WDS functions are handled elsewhere |
Compared with DS1706TESA/T&R, MAX706TESA offers direct pin compatibility but omits the high-impedance IN sense input, while TPS3808G33DBVR reduces footprint and improves reset accuracy but eliminates both watchdog and NMI-critical for fail-safe recovery in complex embedded systems.
Availability
DS1706TESA/T&R is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and telecom infrastructure requiring stable component supply, long-term lifecycle support, and guaranteed tape-and-reel delivery for SMT production.
Supply support for DS1706TESA/T&R 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 design leader specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The DS1706 series belongs to Maxim's MicroMonitor™ supervisory product line, engineered specifically for robust microprocessor reset, watchdog, and power-fail warning in harsh industrial environments with extended temperature operation.
FAQ
What is the exact VCC reset threshold for DS1706TESA/T&R?
The DS1706TESA/T&R has a guaranteed VCC trip point of 3.00 V (min), 3.08 V (typ), and 3.15 V (max) - corresponding to ±5% tolerance at 3.3 V nominal supply. This specification is tested and characterized over the full −40°C to +85°C operating range and defines the voltage at which the /RST output is asserted during power-down. The DS1706TESA/T&R uses an internal bandgap reference to maintain accuracy across temperature and supply variations.
Does DS1706TESA/T&R provide both active-high and active-low reset outputs?
No, DS1706TESA/T&R provides only an active-low reset output (/RST) and does not include the active-high *RST output. That function is reserved for DS1706L and DS1706P variants. The DS1706TESA/T&R pinout and datasheet confirm RST as the sole reset output terminal, configured open-drain with pull-down capability for direct interface to microprocessor /RESET inputs.
How is the watchdog timeout period determined for DS1706TESA/T&R?
The DS1706TESA/T&R watchdog timeout is factory-set to 1.0–2.2 seconds, with typical value 1.6 s. It begins timing after /RST becomes inactive (i.e., after power-up stabilization) and resets on each high-to-low transition at the ST input. If ST is not strobed within the timeout window, WDS is driven low for ≥130 ms. No external components are required - timing is fully internal and temperature-compensated.
Can DS1706TESA/T&R monitor a voltage rail other than VCC?
Yes, DS1706TESA/T&R can monitor an external voltage rail using its dedicated IN pin, which compares the applied voltage against an internal 1.25 V reference. A resistor divider scales higher voltages (e.g., 5 V, 12 V) down to the 1.25 V threshold. The DS1706TESA/T&R datasheet provides the exact equation and example calculations for selecting R1/R2 values, ensuring accurate early-warning NMI generation prior to VCC failure.
Is DS1706TESA/T&R pin-compatible with the MAX705/MAX706 family?
Yes, DS1706TESA/T&R is explicitly documented as pin-compatible with MAX705/MAX706 in 8-pin DIP, SOIC, and µSOP packages. Its pin assignment - PBRST, VCC, GND, IN, NMI, ST, /RST, WDS - matches the MAX706 pinout exactly in SOIC-8 format. This enables direct substitution in legacy designs without PCB modification, provided the 3.3V ±5% trip point meets system requirements.
DS1706TESA/T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- MicroMonitor™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.08V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 130ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DS1706TESA/T&R FAQ
1.How can I place an order for DS1706TESA/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1706TESA/T&R 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 DS1706TESA/T&R reliable?
The price and inventory of DS1706TESA/T&R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1706TESA/T&R is usually 5 days.
3.What payment methods are accepted for DS1706TESA/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1706TESA/T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1706TESA/T&R?
DS1706TESA/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1706TESA/T&R 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 DS1706TESA/T&R?
For technical support, including DS1706TESA/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1706TESA/T&R requirements.
6.How does Aetrix verify that DS1706TESA/T&R is sourced from the original manufacturer or authorized distributors?
All DS1706TESA/T&R 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 DS1706TESA/T&R meets industry standards.
7.What is the process for return or replacement of DS1706TESA/T&R?
All DS1706TESA/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1706TESA/T&R, 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 DS1706TESA/T&R part is unused and in its original packaging.
Return procedure for DS1706TESA/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1706TESA/T&R Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
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…
