My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DS1706ESA/T&R
- Part No.:
- DS1706ESA/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS1706ESA/T&R.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,396
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DS1706ESA/T&R from Maxim Integrated is a 3.3V ±10% supply voltage supervisor IC with active-low reset output, watchdog timer, and non-maskable interrupt functionality. It monitors VCC, senses external power rails via high-impedance IN pin, debounces pushbutton reset, and delivers guaranteed 130ms reset pulse width. Used in embedded microcontroller systems requiring reliable power-up sequencing and fail-safe recovery.
For engineers reviewing the DS1706ESA/T&R datasheet, DS1706ESA/T&R pinout, DS1706ESA/T&R application, or DS1706ESA/T&R equivalent, key selection criteria include VCC trip point (3.08V typ), watchdog timeout (1.0–2.2s), NMI early-warning capability, and SOIC-8 industrial-grade packaging for space-constrained designs.
Technical Context
The DS1706ESA/T&R implements three independent monitoring functions: precision VCC threshold detection (3.08V ±0.07V), user-configurable IN-pin voltage sensing (1.25V reference), and 1-second watchdog timer with ST input strobing. All functions operate across -40°C to +85°C with internal hysteresis and noise immunity.
It generates RST (active-low) on VCC dropout or PBRST assertion, pulses NMI (active-low) at 200µs duration upon IN-sense violation, and drives WDS (active-low) on watchdog timeout. Reset remains asserted ≥130ms after VCC recovery, ensuring processor stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 3.08 V (typ), ±0.07 V tolerance - sets precise 3.3V system reset threshold |
| Reset Pulse Width | 130–285 ms - guarantees sufficient time for microprocessor power stabilization |
| Watchdog Timeout | 1.0–2.2 s - provides configurable software execution supervision window |
| NMI Pulse Width | 200 µs minimum - delivers early power-fail warning without blocking CPU operation |
| IN Pin Reference | 1.25 V (±0.05 V) - enables accurate external rail monitoring via resistor divider |
| Supply Current | 50 µA (VCC < 3.6 V) - supports ultra-low-power battery-backed applications |
| Operating Temp | -40°C to +85°C - qualified for industrial environment deployment |
Pinout & Package
DS1706ESA/T&R is housed in an 8-pin SOIC (150-mil) package with gull-wing leads, surface-mount compatible, and rated for industrial temperature operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PBRST | Pushbutton Reset Input | Active-low, internally pulled up; debounced to generate ≥130ms RST pulse on release |
| VCC | Power Supply Input | Primary 3.3V supply input; monitored for dropout and overvoltage conditions |
| GND | Ground Reference | System ground return path for all internal comparators and outputs |
| IN | External Voltage Sense Input | High-impedance input referenced to 1.25V internal bandgap; enables custom rail monitoring |
| NMI | Non-Maskable Interrupt Output | Active-low, 200µs pulse on IN or VCC fault; signals early power failure before reset |
| ST | Watchdog Strobe Input | Active-low edge-triggered input; resets watchdog timer on each falling edge |
| RST | Active-Low Reset Output | Open-drain, driven low during VCC dropout, PBRST assertion, or watchdog timeout |
| WDS | Watchdog Status Output | Active-low open-drain output pulsed low for ≥130ms on watchdog timeout |
Key Features
| Feature | Design Value |
|---|---|
| Triple-function supervision | Simultaneous VCC monitoring, external rail sensing (IN), and software watchdog - eliminates need for discrete supervisors |
| Configurable reset threshold | 3.3V ±10% trip point (3.08V typ) matches standard 3.3V logic supply tolerances |
| Early-warning NMI | 1.25V reference-based comparator on IN pin enables upstream power rail monitoring with 100µV hysteresis |
| Guaranteed reset timing | 130ms minimum RST assertion ensures reliable microprocessor initialization after power recovery |
| SOIC-8 industrial packaging | 150-mil SOIC footprint supports automated assembly and meets IPC/JEDEC moisture sensitivity level 1 |
Applications
| Industrial PLC Controller | Medical Diagnostic Device |
|---|---|
Use Scenario: Microcontroller-based programmable logic controller operating in factory-floor environments with fluctuating 3.3V supplies. IC Role / Device Role / Timing Role: Primary power supervisor providing VCC monitoring, pushbutton-initiated reset, and watchdog supervision of firmware execution. Use Value: Prevents runaway code and brownout-induced corruption by asserting RST within 8µs of VCC drop below 3.08V and holding it ≥130ms. |
Use Scenario: Portable ultrasound imaging unit powered by Li-ion battery with regulated 3.3V rail and safety-critical boot integrity requirements. IC Role / Device Role / Timing Role: Fail-safe boot supervisor generating NMI for graceful shutdown and RST for controlled restart after power interruption. Use Value: Enables 200µs NMI warning before reset, allowing firmware to save state and disable transducers prior to power collapse. |
| Telecom Remote Terminal | Smart Energy Meter |
Use Scenario: Outdoor telecom node with wide-temperature operation and remote firmware update capability. IC Role / Device Role / Timing Role: Watchdog and reset manager interfacing with ARM Cortex-M microcontroller via ST strobe and RST output. Use Value: Detects hung firmware via 1.0–2.2s watchdog timeout and forces hardware reset without host intervention. |
Use Scenario: ANSI C12.20-compliant electricity meter with tamper-detection circuitry and EEPROM data retention. IC Role / Device Role / Timing Role: Dual-rail supervisor monitoring both 3.3V MCU supply and 5V analog front-end using IN pin divider network. Use Value: Uses 1.25V reference and external resistors to sense 5V rail at 4.5V trip point, triggering NMI before VCC dropout affects metrology accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UT29D3+T | 3.0V ±2.5% fixed threshold; no IN pin or NMI output; only RST output | Lacks external rail monitoring and early-warning interrupt; suitable only for single-rail VCC supervision | Select when only basic 3.0V reset is required and board space permits smaller SOT-23-3 package |
| TPS3808G33DBVR | 3.3V ±0.5% threshold; adjustable reset delay; no watchdog or NMI; pushbutton reset not supported | No software execution supervision or external rail sensing; reset delay configurable but no early warning | Choose for higher-precision 3.3V monitoring where watchdog/NMI functions are handled separately |
Compared with DS1706ESA/T&R, MAX6326UT29D3+T offers tighter threshold accuracy but omits critical features like NMI and watchdog; TPS3808G33DBVR provides superior VCC tolerance control but requires external circuitry for pushbutton reset and failsafe monitoring.
Availability
DS1706ESA/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 SOIC-8 compatibility with legacy Maxim designs.
Supply support for DS1706ESA/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 company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The DS1706ESA/T&R belongs to the MicroMonitor™ family of voltage supervisors, designed specifically for robust microprocessor supervision in harsh environments with multi-rail monitoring and fail-safe recovery.
FAQ
What is the exact VCC trip point specification for DS1706ESA/T&R?
The DS1706ESA/T&R has a nominal VCC trip point of 3.08 V with a tolerance range of 3.00 V to 3.15 V at -40°C to +85°C. This 3.3V ±10% threshold is factory-trimmed and temperature-compensated, ensuring consistent reset behavior across industrial temperature extremes without external calibration. The DS1706ESA/T&R datasheet specifies VCCTP = 3.08 V (typ) in the DC Electrical Characteristics table.
Does DS1706ESA/T&R support external voltage rail monitoring beyond VCC?
Yes, DS1706ESA/T&R supports external rail monitoring via its IN pin, which references an internal 1.25 V ±0.05 V bandgap. By connecting a resistor divider between the target rail and GND, users can configure trip points such as 4.5 V or 12 V. The DS1706ESA/T&R datasheet provides the equation VSENSE = (R2/(R1+R2)) × 1.25 V and confirms IN pin operation up to VCC, enabling safe interface with higher-voltage supplies.
How does the watchdog timer in DS1706ESA/T&R function and what is its timeout range?
The DS1706ESA/T&R watchdog timer initiates timing upon RST deassertion and resets on each falling edge of the ST input. If ST is not strobed within 1.0–2.2 seconds, WDS asserts low for ≥130 ms. The DS1706ESA/T&R AC Electrical Characteristics table defines tTD = 1.0–2.2 s, tested at 2.7 V for 3.3V devices. This window allows flexible firmware polling intervals while preventing false timeouts due to transient noise.
Is DS1706ESA/T&R pin-compatible with other members of the DS1705/DS1706 family?
Yes, DS1706ESA/T&R is pin-compatible with all DS1705/DS1706 variants in SOIC-8 packaging, including DS1705ESA, DS1706LESA, and DS1706RESA. The pinout (PBRST, VCC, GND, IN, NMI, ST, RST, WDS) is identical across the family, enabling direct substitution where trip point and output polarity match design requirements. The DS1706ESA/T&R datasheet explicitly states "Pin-compatible with the MAXIM MAX705/MAX706 in 8-pin DIP, 8-pin SOIC, and -SOP".
What is the purpose and timing behavior of the NMI output on DS1706ESA/T&R?
The NMI output on DS1706ESA/T&R provides early-warning interrupt signaling - pulsing low for ≥200 µs when either VCC drops below 3.08 V or the IN pin voltage falls below 1.25 V. It features 100 µV hysteresis and 5 µs noise immunity, ensuring clean triggering without false alarms. The DS1706ESA/T&R Timing Diagrams (Figures 8 and 9) confirm NMI activation precedes RST assertion, giving firmware time to execute safe shutdown routines before reset occurs.
DS1706ESA/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:
- 4.4V
- 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
DS1706ESA/T&R FAQ
1.How can I place an order for DS1706ESA/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1706ESA/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 DS1706ESA/T&R reliable?
The price and inventory of DS1706ESA/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 DS1706ESA/T&R is usually 5 days.
3.What payment methods are accepted for DS1706ESA/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1706ESA/T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1706ESA/T&R?
DS1706ESA/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1706ESA/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 DS1706ESA/T&R?
For technical support, including DS1706ESA/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1706ESA/T&R requirements.
6.How does Aetrix verify that DS1706ESA/T&R is sourced from the original manufacturer or authorized distributors?
All DS1706ESA/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 DS1706ESA/T&R meets industry standards.
7.What is the process for return or replacement of DS1706ESA/T&R?
All DS1706ESA/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1706ESA/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 DS1706ESA/T&R part is unused and in its original packaging.
Return procedure for DS1706ESA/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1706ESA/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…
