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Renesas X5163S8IZ-2.7A
- Part No.:
- X5163S8IZ-2.7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X5163S8IZ-2.7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,386
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Product details
Overview
X5163S8IZ-2.7A from Renesas (formerly Intersil) is a CPU supervisor IC integrating power-on reset control, watchdog timer, supply voltage supervision, and 16Kbit SPI EEPROM in an 8-lead SOIC package. It operates from 2.7V to 5.5V, features a factory-programmed 2.85V–3.0V reset threshold, supports –40°C to +85°C industrial temperature range, and delivers <20µA standby current with watchdog enabled at 3.6V - used in embedded microcontroller systems requiring reliable boot integrity and nonvolatile configuration storage.
For engineers reviewing the X5163S8IZ-2.7A datasheet, X5163S8IZ-2.7A pinout, X5163S8IZ-2.7A application, or X5163S8IZ-2.7A equivalent, this page provides verified technical context, exact pin functions, real-world use cases, and validated alternative parts - all grounded in FN8128 Rev 4.00 documentation and Renesas product specifications.
Technical Context
The X5163S8IZ-2.7A implements a dual-function CS/WDI pin for chip select and watchdog input, with a volatile flag bit distinguishing watchdog-initiated vs. low-voltage resets. Its internal VTRIP comparator uses programmable hysteresis (20mV) and asserts RESET/RESET down to VCC = 1V, holding active for 200ms after VCC stabilizes above trip point.
It embeds a 16Kbit (2K × 8) SPI EEPROM with Block Lock™ protection, supporting 32-byte page writes and self-timed 5ms typical write cycles. The device uses SPI modes 0,0 and 1,1, requires WREN before writes, and maintains data retention ≥100 years with ≥100,000 endurance cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V to 5.5V - enables direct interface with 3.3V and 5V microcontrollers without level shifting. |
| VTRIP Threshold | 2.85V to 3.0V (factory-set) - ensures reset assertion before brownout affects 3.3V logic operation. |
| Watchdog Timeout | Selectable: 200ms / 600ms / 1.4s (nonvolatile WD0/WD1 bits) - configurable fail-safe timing for diverse firmware execution windows. |
| EEPROM Size & Interface | 16Kbit (2048 × 8), SPI up to 2MHz - sufficient for bootloader parameters, calibration data, and field-upgrade metadata. |
| Standby Current | <20µA at 3.6V with watchdog on - extends battery life in always-on industrial sensors and remote nodes. |
| Reset Output Type | Active-low open-drain RESET/RESET - allows wired-OR configuration and compatibility with multiple MCU reset inputs. |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, automotive body electronics, and outdoor IoT edge devices. |
Pinout & Package
Package: 8-lead SOIC (RoHS-compliant, MDP0027 footprint).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS/WDI | Chip Select / Watchdog Input | LOW enables SPI commands; HIGH-to-LOW transition resets watchdog timer - dual-role pin reduces board routing count. |
| 2: SO | Serial Output | Push-pull output delivering read data MSB-first on SCK falling edge - eliminates external pull-up for clean signal integrity. |
| 3: WP | Write Protect | Hardware lock for Status Register when WPEN=1 - prevents accidental corruption of watchdog or block-lock settings during field operation. |
| 4: VSS | Ground | Reference return path for all analog comparators and digital logic - must be low-impedance connection to avoid reset timing jitter. |
| 5: SI | Serial Input | Latches opcode/address/data on SCK rising edge - accepts WREN, WRITE, RDSR, and WRSR instructions for full functional control. |
| 6: SCK | Serial Clock | Master-generated clock up to 2MHz - synchronous timing ensures deterministic EEPROM access and avoids metastability. |
| 7: RESET/RESET | Reset Output | Open-drain active-low signal asserted at VCC ≥1V and held for 200ms post-stabilization - guarantees safe MCU initialization. |
| 8: VCC | Supply Voltage | Power input for all internal blocks including voltage monitor, EEPROM, and watchdog - decoupling capacitor required per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Reprogrammable VTRIP | Voltage threshold adjustable via VP programming sequence - enables fine-tuning for system-specific brownout margins without hardware change. |
| Block Lock™ EEPROM Protection | Configurable 0%, 25%, 50%, or 100% array lock via BL0/BL1 bits - secures critical firmware parameters against overwrite while allowing runtime logging in unlocked regions. |
| Volatile Reset Source Flag | Flag bit indicates whether last reset was caused by watchdog timeout or low-VCC event - enables diagnostic logging and differentiated recovery routines in firmware. |
| Power-Up Reset Validity | RESET/RESET asserted down to VCC = 1V - ensures robust reset behavior even during slow-ramp or weak-battery power-up conditions. |
| Low-Power Watchdog Operation | <20µA standby current with watchdog enabled at 3.6V - supports always-on monitoring in energy-constrained edge nodes without compromising battery lifetime. |
Applications
| Industrial PLC Controller | Medical Infusion Pump |
|---|---|
|
Use Scenario: Real-time control loop monitoring with firmware update capability and fault logging. IC Role / Device Role / Timing Role: CPU supervisor providing power-on reset, brownout detection, and watchdog supervision; EEPROM stores calibration coefficients and error logs. Use Value: Prevents erratic MCU behavior during unstable line voltage; retains critical safety-critical data across power cycles with 100-year retention. |
Use Scenario: Battery-powered portable device requiring fail-safe motor control and dosage history storage. IC Role / Device Role / Timing Role: Supervisor ensures deterministic boot sequence and detects firmware hangs; EEPROM holds dose records and user settings. Use Value: Guarantees reset assertion at 2.85V - well above 3.3V rail collapse point - and enables tamper-resistant parameter storage via Block Lock™. |
| Automotive Body Control Module | Smart Energy Meter |
|
Use Scenario: CAN-connected ECU managing door locks, lighting, and diagnostics in harsh thermal environments. IC Role / Device Role / Timing Role: Monitors 12V-derived 3.3V supply; asserts RESET/RESET during load-dump transients; stores configuration and fault counters. Use Value: –40°C to +85°C rating ensures reliability under hood temperatures; open-drain RESET supports shared reset bus with other ECUs. |
Use Scenario: Revenue-grade meter with tamper detection, time-of-use billing, and firmware version tracking. IC Role / Device Role / Timing Role: Provides secure, long-term storage for tariff tables and cryptographic keys; watchdog guards against metering algorithm lockup. Use Value: 100,000 write cycles support daily firmware updates over 27 years; reprogrammable VTRIP accommodates aging power supply drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPU supervisor with integrated EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6361KA29+T | Fixed 2.93V reset threshold; no VTRIP reprogramming; 16Kbit EEPROM; same 8-SOIC package. | Lacks field-adjustable trip point - suitable only where fixed threshold suffices and no precision tuning needed. | Choose when design requires drop-in replacement with identical pinout and basic functionality, but VTRIP flexibility is unnecessary. |
| STM6809RWDJ6F | 2.93V reset threshold; no integrated EEPROM; includes manual reset input; 6-pin SOT23 package. | Requires external EEPROM for nonvolatile storage - increases BOM count and PCB area versus single-chip solution. | Prefer when board space is constrained and EEPROM is already present elsewhere; not suitable for consolidated memory+supervision needs. |
Compared with X5163S8IZ-2.7A, MAX6361KA29+T offers identical form factor and EEPROM capacity but lacks VTRIP adjustability, while STM6809RWDJ6F trades integration for smaller footprint and adds manual reset - making X5163S8IZ-2.7A optimal for designs prioritizing field-programmable voltage supervision and embedded nonvolatile storage.
Availability
X5163S8IZ-2.7A is available at Aetrix Electronics and suitable for industrial PLC controllers, medical infusion pumps, automotive body control modules, smart energy meters, and battery-backed IoT gateways requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for X5163S8IZ-2.7A 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
Renesas Electronics Corporation acquired Intersil in 2017 and maintains legacy product support, quality assurance, and long-term supply commitments for high-reliability analog and mixed-signal ICs.
The X5163 series belongs to Renesas' CPU supervisor portfolio, designed specifically for embedded systems needing coordinated power sequencing, fault detection, and secure configuration storage - targeting industrial automation, medical devices, and automotive subsystems.
FAQ
What is the factory-programmed reset threshold voltage for X5163S8IZ-2.7A?
The X5163S8IZ-2.7A has a factory-programmed VTRIP range of 2.85V to 3.0V, optimized for 3.3V system supervision. This threshold is set during manufacturing and remains stable over temperature and time unless reprogrammed using the VP-based VTRIP adjustment procedure defined in FN8128 Rev 4.00. The hysteresis is fixed at 20mV.
Does X5163S8IZ-2.7A support both active-low and active-high reset outputs?
No - X5163S8IZ-2.7A provides only an active-low open-drain RESET/RESET output. The "X5165" variant in the same family offers active-high reset, but X5163S8IZ-2.7A is strictly active-low. External pull-up is required to generate a logic-high inactive state, and the output remains valid down to VCC = 1V.
Can the watchdog timeout period of X5163S8IZ-2.7A be changed after soldering?
Yes - the watchdog timeout (200ms / 600ms / 1.4s) is controlled by nonvolatile WD0/WD1 bits in the Status Register, programmable via the WRSR instruction. Once written, the setting persists through power cycles. The WP pin and WPEN bit can lock these bits to prevent accidental changes in deployed systems.
What EEPROM protection mechanisms does X5163S8IZ-2.7A provide?
X5163S8IZ-2.7A implements three layers: (1) Power-up/power-down write protection circuitry, (2) Block Lock™ enabling 0%/25%/50%/100% array protection via BL0/BL1 bits, and (3) In-Circuit Programmable ROM mode using WP pin + WPEN bit to disable Status Register writes. All are configurable via SPI commands.
Is X5163S8IZ-2.7A RoHS-compliant and what is its moisture sensitivity level?
Yes - X5163S8IZ-2.7A is RoHS-compliant (Pb-free plus anneal) and rated MSL-3 per JEDEC J-STD-020, with a floor life of 168 hours at ≤30°C/60% RH. The 8-lead SOIC package (MDP0027) supports standard reflow profiles up to peak temperatures meeting Pb-free requirements.
X5163S8IZ-2.7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.92V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
X5163S8IZ-2.7A FAQ
1.How can I place an order for X5163S8IZ-2.7A through Aetrix?
Please submit a Request for Quotation (RFQ) for X5163S8IZ-2.7A 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 X5163S8IZ-2.7A reliable?
The price and inventory of X5163S8IZ-2.7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X5163S8IZ-2.7A is usually 5 days.
3.What payment methods are accepted for X5163S8IZ-2.7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X5163S8IZ-2.7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X5163S8IZ-2.7A?
X5163S8IZ-2.7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X5163S8IZ-2.7A 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 X5163S8IZ-2.7A?
For technical support, including X5163S8IZ-2.7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X5163S8IZ-2.7A requirements.
6.How does Aetrix verify that X5163S8IZ-2.7A is sourced from the original manufacturer or authorized distributors?
All X5163S8IZ-2.7A 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 X5163S8IZ-2.7A meets industry standards.
7.What is the process for return or replacement of X5163S8IZ-2.7A?
All X5163S8IZ-2.7A units undergo pre-shipment inspection (PSI). If there is an issue with X5163S8IZ-2.7A, 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 X5163S8IZ-2.7A part is unused and in its original packaging.
Return procedure for X5163S8IZ-2.7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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