My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DS1708SEUA+T&R
- Part No.:
- DS1708SEUA+T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1708SEUA+T&R.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,056
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DS1708SEUA+T&R from Maxim Integrated is a 3.3V ±10% supply voltage supervisor IC with dual active-high/active-low reset outputs, non-maskable interrupt (NMI), and pushbutton reset debouncing. It monitors VCC, an external sense point (IN), and PBRST to ensure microprocessor reliability during power transients and failures in industrial embedded systems.
For engineers reviewing the DS1708SEUA+T&R datasheet, DS1708SEUA+T&R pinout, DS1708SEUA+T&R application, or DS1708SEUA+T&R equivalent, key selection considerations include its 2.93V–3.00V VCC trip point, 130ms minimum reset pulse width, NMI early-warning capability at 1.25V IN threshold, and µSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The DS1708SEUA+T&R implements a precision bandgap-referenced comparator architecture to monitor both local VCC (trip point 2.93V–3.00V) and remote supply voltage via high-impedance IN pin (1.20V–1.30V threshold). Its internal hysteresis (100µV on NMI path) and noise immunity (<2µs pulses ignored) prevent false triggering during supply ripple or ESD events.
It delivers two synchronized reset signals-RST (active-high) and RST (active-low)-with guaranteed 130ms minimum assertion time after power-up or PBRST release. The NMI output provides early warning of impending power failure, enabling controlled system shutdown before VCC drops below operational threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 2.93V to 3.00V - ensures reliable reset assertion for 3.3V ±10% systems |
| Reset Pulse Width | 130ms min - guarantees sufficient time for processor and power supply stabilization |
| IN Threshold Voltage | 1.20V to 1.30V - enables flexible external voltage monitoring via resistor divider |
| NMI Pulse Width | 200µs min - provides deterministic early-warning signal for firmware-triggered shutdown |
| Operating Temperature | -40°C to +85°C - supports industrial-grade deployment without derating |
| Supply Current | 50µA max at VCC < 3.6V - minimizes quiescent load on battery-backed or low-power rails |
| Package | 8-pin µSOP (118-mil) - surface-mount footprint with 0.5mm pitch for high-density layouts |
Pinout & Package
DS1708SEUA+T&R is housed in an 8-pin µSOP (118-mil) package with exposed pad for thermal performance. Pin assignments are identical across DS1707/DS1708 family variants in this package variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-high reset output | Drives high during reset; compatible with processors requiring active-high reset assertion |
| RST | Active-low reset output | Drives low during reset; supports legacy microcontrollers with active-low reset inputs |
| PBRST | Pushbutton reset input | Internally pulled up; accepts active-low momentary switch; debounced with 130ms guaranteed pulse |
| VCC | Power supply input | Accepts 1.2V to 5.5V; powers internal reference and comparators |
| GND | Ground reference | Common return path for all analog and digital circuitry |
| IN | Voltage sense input | High-impedance (≤1µA leakage); monitors external rail via resistor divider; trip at 1.25V |
| NC | No-connect terminal | Not bonded; must remain unconnected per design |
| NMI | Non-maskable interrupt output | Open-drain, active-low pulse (200µs min); signals early power-fail condition |
Key Features
| Feature | Design Value |
|---|---|
| Dual reset outputs | Simultaneous RST (active-high) and RST (active-low) eliminate need for external inverters |
| Early-warning NMI | 1.25V IN threshold with 100µV hysteresis enables predictive shutdown before VCC collapse |
| Pushbutton debouncing | Hardware-based timing ensures 130ms minimum reset pulse regardless of switch bounce or press duration |
| Voltage tolerance options | DS1708SEUA+T&R supports 3.3V ±10% monitoring - tighter than generic 20% variants for stable LDO-fed systems |
| Industrial temperature range | -40°C to +85°C operation verified across full VCC range (1.2V–5.5V) |
Applications
| Industrial PLC Controller | Medical Diagnostic Equipment |
|---|---|
Use Scenario: Power supervision in DIN-rail mounted programmable logic controllers subject to brownouts and EMI-rich factory environments. IC Role / Device Role / Timing Role: Primary voltage supervisor ensuring deterministic reset and early NMI-triggered state save before main 3.3V rail collapse. Use Value: Prevents corrupted I/O state or firmware lockup by guaranteeing 130ms reset hold time and rejecting sub-2µs noise spikes. | Use Scenario: Monitoring critical 3.3V supply feeding FPGA configuration memory and ADC front-end in portable ultrasound units. IC Role / Device Role / Timing Role: Dual-reset supervisor with NMI alerting firmware to initiate safe image buffer flush prior to power loss. Use Value: Enables compliance with IEC 62304 safety requirements via predictable, hardware-enforced shutdown sequence. |
| Smart Energy Meter | Ruggedized IoT Gateway |
Use Scenario: Supervising isolated 3.3V DC-DC output powering metrology SoC and secure element in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: Monitors both local VCC and upstream 12V rail via IN pin to detect primary power failure before backup capacitor depletion. Use Value: Extends valid operation window by >200ms through early NMI warning, allowing full meter register save to FRAM. | Use Scenario: Ensuring robust boot integrity in edge gateways deployed in outdoor telecom cabinets with wide ambient temperature swings. IC Role / Device Role / Timing Role: Reset generator with µSOP-8 footprint minimizing board area while supporting -40°C cold-start and +85°C sustained operation. Use Value: Eliminates need for discrete RC reset circuits and external watchdog ICs, reducing BOM count and qualification effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX708TESA+ | Same 3.3V ±5% trip point; identical µSOP-8 pinout; higher accuracy but narrower tolerance window | Better suited for systems with tight 3.3V regulation where ±5% margin is required | Select MAX708TESA+ when supply stability exceeds ±5%; DS1708SEUA+T&R preferred for ±10% tolerance flexibility |
| TPS3808G12DBVR | Adjustable threshold (via external resistor); 1.2V–5.5V supply; no NMI output; 200ms reset timeout | Lacks early-warning interrupt; requires external components for voltage scaling; lower quiescent current (1.1µA) | Choose TPS3808G12DBVR for ultra-low-power battery applications where NMI is unnecessary and adjustable trip is needed |
Compared with MAX708TESA+ and TPS3808G12DBVR, DS1708SEUA+T&R uniquely combines fixed ±10% 3.3V supervision, dual reset polarity, and hardware NMI in a single µSOP-8 package - enabling fail-safe shutdown sequencing without firmware dependency or external components.
Availability
DS1708SEUA+T&R is available at Aetrix Electronics and suitable for industrial PLC controllers, medical diagnostic equipment, smart energy meters, and ruggedized IoT gateways requiring stable component supply and long-term lifecycle support.
Supply support for DS1708SEUA+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) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications applications.
The DS1707/DS1708 MicroMonitor product line delivers integrated power-supervision solutions with dual reset outputs and early-warning NMI for microprocessor-based systems operating in harsh environments.
FAQ
What is the exact VCC trip point range for DS1708SEUA+T&R?
The DS1708SEUA+T&R has a guaranteed VCC trip point range of 2.85V to 3.00V, corresponding to 3.3V ±10% monitoring. This is confirmed in the DC Electrical Characteristics table under "VCC Trip Point DS1708S", where MIN=2.85V, TYP=2.93V, and MAX=3.00V. The device asserts reset when VCC falls below this window and holds reset for ≥130ms after recovery.
Does DS1708SEUA+T&R provide both active-high and active-low reset outputs?
Yes, DS1708SEUA+T&R provides two independent reset outputs: RST (active-high) and RST (active-low), both asserted simultaneously during power failure or pushbutton event. This eliminates the need for external inverters and supports mixed-logic systems. Both outputs meet 130ms minimum pulse width specification across -40°C to +85°C.
Can DS1708SEUA+T&R monitor a voltage other than VCC?
Yes, DS1708SEUA+T&R includes a dedicated high-impedance IN pin that monitors an external voltage node via a resistor divider. Its internal 1.25V reference compares against the divided voltage, enabling supervision of higher rails (e.g., 5V, 12V) or upstream supplies. The IN input must not exceed VCC, and proper resistor values are calculated using VSENSE = (R2/(R1+R2)) × 1.25V.
What is the function of the NMI output on DS1708SEUA+T&R?
The NMI (non-maskable interrupt) output on DS1708SEUA+T&R provides an early-warning signal when the IN pin voltage drops to the 1.25V threshold - typically before VCC collapses. It pulses low for ≥200µs with built-in 100µV hysteresis to reject noise. This allows firmware to execute critical save operations before full reset occurs, enhancing system data integrity.
Is DS1708SEUA+T&R pin-compatible with other packages in the DS1707/DS1708 family?
Yes, DS1708SEUA+T&R uses the 8-pin µSOP (118-mil) package with identical pinout to DS1707/DS1708 variants in SOIC and DIP packages. Pin functions - including dual RST outputs, PBRST, IN, NMI, VCC, GND, and NC - are fully consistent across all package types, enabling layout reuse when migrating between form factors.
DS1708SEUA+T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- MicroMonitor™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.93V
- Output:
- Push-Pull, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- 130ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
DS1708SEUA+T&R FAQ
1.How can I place an order for DS1708SEUA+T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1708SEUA+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 DS1708SEUA+T&R reliable?
The price and inventory of DS1708SEUA+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 DS1708SEUA+T&R is usually 5 days.
3.What payment methods are accepted for DS1708SEUA+T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1708SEUA+T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1708SEUA+T&R?
DS1708SEUA+T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1708SEUA+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 DS1708SEUA+T&R?
For technical support, including DS1708SEUA+T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1708SEUA+T&R requirements.
6.How does Aetrix verify that DS1708SEUA+T&R is sourced from the original manufacturer or authorized distributors?
All DS1708SEUA+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 DS1708SEUA+T&R meets industry standards.
7.What is the process for return or replacement of DS1708SEUA+T&R?
All DS1708SEUA+T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1708SEUA+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 DS1708SEUA+T&R part is unused and in its original packaging.
Return procedure for DS1708SEUA+T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1708SEUA+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…
