My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DS1708SESA/T&R
- Part No.:
- DS1708SESA/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS1708SESA/T&R.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,373
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DS1708SESA/T&R from Maxim Integrated is a 3.3V ±10% precision voltage supervisor IC with dual active-high/active-low reset outputs, non-maskable interrupt (NMI), and pushbutton reset debouncing. It monitors VCC and an external sense point (IN), delivers 130ms minimum reset pulse width, and operates across -40°C to +85°C for industrial microprocessor power management.
For engineers reviewing the DS1708SESA/T&R datasheet, DS1708SESA/T&R pinout, DS1708SESA/T&R application, or DS1708SESA/T&R equivalent, key selection criteria include VCC trip point (2.85–3.00V), NMI timing (200µs pulse, 5µs detection delay), RST/RST assertion during power-down/up, PBRST debounce logic, and SOIC-8 package compatibility with MAX707/MAX708.
Technical Context
The DS1708SESA/T&R implements a dual-threshold monitoring architecture: one comparator tracks VCC against a factory-trimmed 2.93V typical trip point (±10% tolerance), while a second high-impedance comparator monitors the IN pin against a 1.25V internal reference for early power-fail warning. Both comparators feed independent timing circuits - one generating 130ms reset hold time, another producing a 200µs NMI pulse with 5µs noise immunity.
Its pushbutton reset input (PBRST) is internally pulled up to VCC via ~40kΩ and debounced to guarantee ≥130ms RST/RST assertion upon button release. The device supports cascaded operation: NMI can be wired to PBRST to trigger automatic reset on upstream supply failure, enabling fail-safe shutdown sequencing in embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 2.85V (min) to 3.00V (max); precise 3.3V system supervision with ±10% tolerance |
| Reset Pulse Width | 130ms (min); ensures stable microprocessor boot after power recovery or manual reset |
| NMI Pulse Width | 200µs (min); provides deterministic early-warning interrupt before reset assertion |
| IN Pin Reference | 1.25V (typ); enables user-configurable voltage sensing via external resistor divider |
| Operating Temp | -40°C to +85°C; qualified for industrial-grade embedded control and instrumentation |
| Supply Current | 50µA (max at VCC < 3.6V); ultra-low quiescent power for battery-backed or energy-sensitive designs |
| Output Drive | 10mA sink / 350µA source; sufficient to directly drive MCU reset inputs without external buffers |
Pinout & Package
DS1708SESA/T&R is supplied in an 8-pin SOIC (150-mil) package, pin-compatible with MAX707/MAX708 and functionally identical to DS1708ESA per Maxim's ordering table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PBRST | Pushbutton Reset Input | Active-low, internally pulled up; debounced to generate ≥130ms RST/RST on release |
| VCC | Power Supply Input | Monitored supply rail (2.85–3.00V trip); powers internal reference and comparators |
| GND | Ground Reference | Common return path for all analog and digital circuitry; must be low-impedance |
| IN | Voltage Sense Input | High-impedance input referenced to 1.25V; used for early warning of upstream supply decay |
| RST | Active-High Reset Output | CMOS-level output asserted high during reset; drives MCU reset pins requiring active-high signal |
| RST | Active-Low Reset Output | Open-drain output asserted low during reset; compatible with legacy microcontrollers |
| NC | No Connect | Unbonded pin; must remain unconnected per mechanical drawing and reliability requirements |
| NMI | Non-Maskable Interrupt Output | Open-drain output pulsed low for ≥200µs when IN falls below 1.25V; triggers emergency shutdown |
Key Features
| Feature | Design Value |
|---|---|
| Dual Reset Outputs | RST (active-high) and RST (active-low) eliminate need for external inverters in mixed-signal systems |
| Programmable Sense Point | IN pin with 1.25V reference allows monitoring of any DC voltage ≥VCC via resistor divider (e.g., 12V rail) |
| Automatic Power-Fail Response | Generates NMI before reset, enabling firmware-controlled data save or graceful shutdown prior to VCC collapse |
| Pushbutton Debounce Logic | Hardware-based timing ensures clean, jitter-free reset pulses regardless of switch bounce characteristics |
| Industrial Temperature Range | Guaranteed operation from -40°C to +85°C supports deployment in harsh environments without derating |
Applications
| Industrial PLC Controller | Medical Diagnostic Equipment |
|---|---|
|
Use Scenario: Real-time control loop execution in programmable logic controllers exposed to variable line voltage and EMI. IC Role / Device Role / Timing Role: Voltage supervisor providing VCC monitoring, early NMI warning, and hardware reset coordination. Use Value: Prevents corrupted I/O states during brownout by asserting RST before VCC drops below MCU operational threshold. |
Use Scenario: Battery-backed imaging subsystem requiring safe shutdown before power loss interrupts data acquisition. IC Role / Device Role / Timing Role: Dual-threshold monitor triggering NMI for firmware-initiated image save, then RST for controlled reboot. Use Value: 200µs NMI pulse gives >10ms margin before RST assertion, enabling full frame buffer flush in FPGA-based capture engines. |
| Telecom Line Card | Automotive Infotainment Head Unit |
|
Use Scenario: Hot-swap power insertion into carrier-grade line cards where transient surges risk MCU lockup. IC Role / Device Role / Timing Role: Supervisor detecting VCC ramp-up faults and generating 130ms reset hold to synchronize multi-rail sequencing. Use Value: Eliminates need for discrete RC reset circuits and reduces BOM count while improving timing accuracy vs. passive solutions. |
Use Scenario: 3.3V domain supervision in infotainment head units sharing power with CAN transceivers and display drivers. IC Role / Device Role / Timing Role: Precision 3.3V ±10% monitor ensuring reset assertion only when core logic voltage violates spec. Use Value: Tight trip tolerance prevents spurious resets during load transients while maintaining robust fault coverage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX708ESA | 5V ±10% trip point (4.25–4.50V); no IN sense input; same SOIC-8 pinout | Limited to 5V systems; lacks early-warning NMI capability for upstream supply monitoring | Select when supervising only VCC in 5V designs and NMI functionality is unnecessary |
| TPS3808G18DBVR | 3.3V ±1.5% trip point; adjustable watchdog timer; no NMI output; SOT-23-6 package | Higher accuracy but no dedicated interrupt output; smaller footprint limits thermal margin in high-reliability use | Prefer for space-constrained 3.3V applications needing tighter trip tolerance but not NMI-driven shutdown |
Compared with MAX708ESA and TPS3808G18DBVR, DS1708SESA/T&R uniquely combines 3.3V ±10% supervision, dual reset polarity, and NMI-driven early warning in a standard SOIC-8 - enabling both robust reset generation and firmware-coordinated power fail response without layout changes.
Availability
DS1708SESA/T&R is available at Aetrix Electronics and suitable for industrial PLC controllers, medical diagnostic equipment, telecom line cards, and automotive infotainment head units requiring stable component supply and guaranteed long-term availability.
Supply support for DS1708SESA/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 and mixed-signal ICs for industrial, communications, and computing applications, with emphasis on reliability and integration.
The DS1708SESA/T&R belongs to the MicroMonitor™ family of voltage supervisors, engineered specifically for fail-safe microprocessor power management in mission-critical embedded systems.
FAQ
What is the exact VCC trip point range for DS1708SESA/T&R?
The DS1708SESA/T&R has a guaranteed VCC trip point range of 2.85V (minimum) to 3.00V (maximum), corresponding to a nominal 3.3V supply with ±10% tolerance. This specification is validated across the full -40°C to +85°C operating temperature range and is factory-trimmed for consistency. The DS1708SESA/T&R datasheet specifies 2.93V as the typical trip point under standard conditions.
Does DS1708SESA/T&R support monitoring of voltages higher than VCC?
Yes, DS1708SESA/T&R supports monitoring of voltages higher than VCC through its IN pin, which compares the external voltage against an internal 1.25V reference. A resistor divider network scales the target voltage down to 1.25V at IN, allowing supervision of rails such as 5V, 12V, or 24V. The DS1708SESA/T&R datasheet provides the design equation and maximum allowable input voltage based on VCC.
How does the NMI output of DS1708SESA/T&R differ from the RST outputs?
The NMI output of DS1708SESA/T&R is a short-duration (≥200µs), open-drain interrupt signal triggered when the IN pin voltage falls below 1.25V - providing early warning before VCC collapse. In contrast, RST and RST are sustained reset signals asserted for ≥130ms once VCC drops below its trip point. DS1708SESA/T&R uses this staged response to enable firmware-controlled shutdown before hardware reset occurs.
Is DS1708SESA/T&R pin-compatible with MAX707/MAX708?
Yes, DS1708SESA/T&R is pin-compatible with MAX707/MAX708 in the 8-pin SOIC package, sharing identical pin assignments for PBRST, VCC, GND, IN, RST, RST, NC, and NMI. This allows direct substitution in existing layouts designed for those Maxim supervisors, provided the 3.3V ±10% trip point meets the system's voltage monitoring requirements.
What is the reset timeout behavior of DS1708SESA/T&R during power-up?
During power-up, DS1708SESA/T&R holds both RST and RST active for a minimum of 130ms after VCC rises above its trip point, ensuring stable power and clock conditions before releasing the microprocessor. This timeout is internally generated and independent of external capacitors, eliminating variability associated with RC-based reset circuits. The DS1708SESA/T&R guarantees this timing across temperature and supply voltage variations.
DS1708SESA/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:
- 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-SOIC
DS1708SESA/T&R FAQ
1.How can I place an order for DS1708SESA/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1708SESA/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 DS1708SESA/T&R reliable?
The price and inventory of DS1708SESA/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 DS1708SESA/T&R is usually 5 days.
3.What payment methods are accepted for DS1708SESA/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1708SESA/T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1708SESA/T&R?
DS1708SESA/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1708SESA/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 DS1708SESA/T&R?
For technical support, including DS1708SESA/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1708SESA/T&R requirements.
6.How does Aetrix verify that DS1708SESA/T&R is sourced from the original manufacturer or authorized distributors?
All DS1708SESA/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 DS1708SESA/T&R meets industry standards.
7.What is the process for return or replacement of DS1708SESA/T&R?
All DS1708SESA/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1708SESA/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 DS1708SESA/T&R part is unused and in its original packaging.
Return procedure for DS1708SESA/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1708SESA/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…
