My Inquiry
My Account
Renesas X40414V8-A
- Part No.:
- X40414V8-A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X40414V8-A.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,227
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X40414V8-A from Intersil is a dual-voltage supervisor IC with integrated 4kbit EEPROM, watchdog timer, and power-on reset circuitry. It monitors VCC (V1MON) and V2MON voltages, asserts active-HIGH RESET on VCC brownout, provides V2FAIL open-drain output, supports 400kHz I²C interface, and operates from 2.7V to 5.5V - used in network storage controllers for reliable power sequencing and firmware parameter retention.
For engineers reviewing the X40414V8-A datasheet, X40414V8-A pinout, X40414V8-A application, or X40414V8-A equivalent, key selection criteria include its dual-threshold programmability (VTRIP1/VTRIP2), 0.05–0.8s selectable power-on reset timeout, 25µA standby current (watchdog enabled), 4kbit Block Lock™ EEPROM with 5ms write cycle, and SOIC-8 package compatibility with industrial-grade voltage supervision requirements.
Technical Context
The X40414V8-A implements independent VCC-supplied V2MON monitoring (unlike X40410/11), enabling accurate secondary supply tracking without VCC dependency during normal operation. Its reset logic asserts active-HIGH RESET upon VCC falling below user-programmable VTRIP1, with tPURST delay configurable via nonvolatile PUP bits (50/200/400/800ms).
Watchdog functionality uses SDA/SCL edge detection to restart a timer with four intervals (25ms/200ms/1.4s/off), controlled by nonvolatile WD1/WD0 bits. The 4kbit EEPROM is organized as 512 × 8, supports 16-byte page writes, and features Direct Write™ cells rated for 100,000 write cycles and 100-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7V to 5.5V - supports single-rail operation across 3.3V and 5V systems without level shifters. |
| VTRIP1 Range | 2.0V–4.75V - factory-set at 2.55–2.65V for 3V/3.3V systems; reprogrammable for precision brownout detection. |
| VTRIP2 Range | 0.90V–3.50V - factory-set at 1.25–1.35V for 1.5V core rails; enables low-voltage core monitoring. |
| Reset Output Type | Active-HIGH CMOS - directly drives microcontroller reset inputs without external pull-up or inversion logic. |
| I²C Interface Speed | 400kHz - compatible with standard Fast-mode I²C buses for configuration and EEPROM access. |
| Standby Current | 25µA typical (watchdog on) - enables always-on supervision in battery-backed or low-power embedded systems. |
| EEPROM Endurance | 100,000 write cycles - sufficient for frequent calibration data or runtime configuration updates over product lifetime. |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), 150 mil width, JEDEC MS-012AC compliant. RoHS-compliant lead finish, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: V2FAIL | Open-drain fail output | Asserts LOW when V2MON < VTRIP2; requires external pull-up; no power-up delay - usable for immediate power-fail interrupt signaling. |
| 2: V2MON | Secondary voltage monitor input | Monitors external rail (e.g., 1.5V core); comparator powered by VCC - invalid if VCC = 0. |
| 3: RESET/RESET | Active-HIGH reset output | Drives microcontroller reset pin HIGH during VCC brownout; remains asserted until VCC > VTRIP1 + tPURST. |
| 4: VSS | Ground reference | System ground return for all internal comparators, logic, and EEPROM - must be low-impedance connection. |
| 5: SDA | Bidirectional I²C data line | Open-drain I²C bus node; requires external pull-up; also serves as watchdog restart trigger via SDA edge + SCL toggle. |
| 6: SCL | I²C clock input | Master-generated clock synchronizing all serial transfers; toggles required with SDA for watchdog reset. |
| 7: WDO | Watchdog timeout output | Open-drain active-LOW signal indicating watchdog expiration; used to force system reset or log fault events. |
| 8: VCC | Primary supply input | Powers internal logic, EEPROM, V1MON comparator, and V2MON comparator - minimum operating voltage 1.0V for reset validity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual programmable voltage thresholds | VTRIP1 and VTRIP2 adjustable via high-voltage programming sequence - eliminates need for external resistor dividers in precision applications. |
| Independent core voltage monitoring | V2MON comparator powered by VCC (X40414/15 variant) - ensures accurate 1.5V/1.2V core rail supervision even with unregulated auxiliary supplies. |
| Selectable power-on reset timeout | Four nonvolatile tPURST options (50/200/400/800ms) - matches FPGA configuration time or processor boot latency without external RC networks. |
| Block Lock™ EEPROM protection | Configurable lock of upper 256-byte block or full array - prevents accidental firmware corruption during field updates or debug sessions. |
| Fault Detection Register (FDR) | Volatile register at 0FFh address - identifies root cause of last reset (LV1F/LV2F/WDF) for automated diagnostics and logging. |
Applications
| Network Storage Controller | Rack-Mount Industrial PLC |
|---|---|
Use Scenario: Monitors 3.3V main rail and 1.5V FPGA core supply in a disk array controller board, asserting RESET on brownout and logging fault source via FDR. IC Role / Device Role / Timing Role: Dual-voltage supervisor with EEPROM-based configuration storage - provides deterministic power-up sequencing and persistent parameter retention. Use Value: Eliminates discrete reset IC + external EEPROM, reducing BOM count by two components while enabling field-upgradable calibration data. | Use Scenario: Supervises 24V-to-5V DC/DC output and isolated 3.3V logic rail in a programmable logic controller, triggering watchdog reset on firmware hang. IC Role / Device Role / Timing Role: System-level power integrity guardian - integrates POR, watchdog, and nonvolatile storage for deterministic recovery after power interruption. Use Value: Guarantees safe state restoration after brownout via active-HIGH RESET and preserves last-known I/O configuration in EEPROM for zero-downtime restart. |
| Telecom Line Card | Medical Imaging Subsystem |
Use Scenario: Tracks primary 5V supply and backup 3.3V management rail in a router line card, generating V2FAIL interrupt before complete power loss to initiate graceful shutdown. IC Role / Device Role / Timing Role: Dual-threshold voltage fail detector with EEPROM-backed service log - enables predictive power failure response and event history storage. Use Value: Extends system uptime by 200ms+ through early V2FAIL warning, while storing diagnostic timestamps in tamper-resistant EEPROM. | Use Scenario: Supervises 1.2V ASIC core and 3.3V sensor interface rail in an MRI subsystem, ensuring reset assertion below 1.15V core threshold to prevent metastability. IC Role / Device Role / Timing Role: Precision low-voltage supervisor with programmable trip points - meets IEC 62304 Class C safety requirements for medical device power monitoring. Use Value: Achieves ±1.5% VTRIP2 accuracy after calibration, exceeding typical 5% tolerance of discrete solutions for critical imaging timing integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor with EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6816EPA+ | Single-voltage supervisor (5V only), no EEPROM, no watchdog, 8-pin DIP package | Lacks memory and secondary monitoring - suitable only for basic reset generation in legacy 5V systems | Select only if design requires no configuration storage and monitors only one rail above 4.5V. |
| TPS3823MPW | Single-voltage supervisor (adjustable 0.6–5V), no EEPROM, no V2MON, 5-pin SOT-23 package | Smaller footprint but no secondary monitoring or nonvolatile storage - limited to space-constrained single-rail applications | Choose when board area is critical and dual-rail supervision is unnecessary; verify external EEPROM integration. |
Compared with MAX6816EPA+ and TPS3823MPW, the X40414V8-A uniquely combines dual-rail monitoring, programmable thresholds, watchdog timer, and 4kbit EEPROM in one SOIC-8 package - enabling reduced component count and enhanced system-level reliability where multi-rail integrity and persistent configuration are required.
Availability
X40414V8-A is available at Aetrix Electronics and suitable for network storage, industrial PLCs, telecom line cards, and medical imaging subsystems requiring stable component supply and long-term obsolescence management.
Supply support for X40414V8-A 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
Intersil Americas Inc. is a U.S.-based semiconductor company specializing in precision analog, power management, and interface ICs for industrial, communications, and computing markets.
The X40414V8-A belongs to Intersil's CPU Supervisor family, designed to consolidate power monitoring, reset control, and nonvolatile storage into a single IC for cost-sensitive, space-constrained embedded systems requiring high reliability.
FAQ
What is the function of the V2MON pin on the X40414V8-A?
The V2MON pin on the X40414V8-A is the secondary voltage monitor input, used to track an external power rail such as a 1.5V core supply. Unlike the X40410/11 variants, the X40414V8-A powers this comparator from VCC - meaning V2MON monitoring ceases if VCC drops to 0V. The pin accepts voltages from 0.9V to 3.5V and triggers V2FAIL when input falls below the programmed VTRIP2 threshold.
Does the X40414V8-A support I²C communication at 400kHz?
Yes, the X40414V8-A supports standard Fast-mode I²C communication at up to 400kHz on its SDA and SCL pins. This allows efficient read/write access to its 4kbit EEPROM and control registers, including the Fault Detection Register (0FFh) and Control Register (1FFh), without requiring custom timing or protocol translation.
How is the reset output polarity configured on the X40414V8-A?
The X40414V8-A has a fixed active-HIGH CMOS RESET output (pin 3), distinct from the active-LOW RESET of the X40411/15 variants. This polarity is inherent to the part number suffix and cannot be changed via software or hardware configuration - it directly drives microcontroller reset inputs requiring HIGH assertion for system initialization.
Can the voltage thresholds VTRIP1 and VTRIP2 be reprogrammed on the X40414V8-A?
Yes, both VTRIP1 and VTRIP2 thresholds on the X40414V8-A can be reprogrammed using a high-voltage programming sequence applied to the WDO pin. The procedure requires applying Vp to WDO, issuing specific I²C commands (A0h slave address + byte addresses 01h/09h), and uses no external components - enabling field calibration to ±0.02V accuracy without changing hardware.
What is the EEPROM endurance specification for the X40414V8-A?
The X40414V8-A EEPROM is specified for a minimum of 100,000 write cycles and 100 years of data retention at +25°C, based on Intersil's Direct Write™ cell technology. This endurance supports frequent updates of calibration coefficients, runtime parameters, or event logs in industrial and telecom applications without premature wear-out concerns.
X40414V8-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.3V, 2.9V
- Output:
- Open Drain, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
X40414V8-A FAQ
1.How can I place an order for X40414V8-A through Aetrix?
Please submit a Request for Quotation (RFQ) for X40414V8-A 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 X40414V8-A reliable?
The price and inventory of X40414V8-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X40414V8-A is usually 5 days.
3.What payment methods are accepted for X40414V8-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X40414V8-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X40414V8-A?
X40414V8-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X40414V8-A 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 X40414V8-A?
For technical support, including X40414V8-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X40414V8-A requirements.
6.How does Aetrix verify that X40414V8-A is sourced from the original manufacturer or authorized distributors?
All X40414V8-A 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 X40414V8-A meets industry standards.
7.What is the process for return or replacement of X40414V8-A?
All X40414V8-A units undergo pre-shipment inspection (PSI). If there is an issue with X40414V8-A, 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 X40414V8-A part is unused and in its original packaging.
Return procedure for X40414V8-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X40414V8-A 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
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
