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Renesas X5163S8Z-2.7T1
- Part No.:
- X5163S8Z-2.7T1
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X5163S8Z-2.7T1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,775
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Product details
Overview
X5163S8Z-2.7T1 from Intersil (now Renesas) 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 provides active-low RESET output, operates from 2.7V to 5.5V, features programmable VTRIP threshold (2.55–2.7V), and supports 200ms power-up reset timeout - used in embedded microcontroller systems requiring reliable boot sequencing and nonvolatile configuration storage.
For engineers reviewing the X5163S8Z-2.7T1 datasheet, X5163S8Z-2.7T1 pinout, X5163S8Z-2.7T1 application, or X5163S8Z-2.7T1 equivalent, this device delivers integrated system-level supervision with reprogrammable reset thresholds, selectable watchdog timeouts (200ms/600ms/1.4s), block-lock EEPROM protection, and SPI interface compatibility at up to 2MHz - critical for industrial controllers, medical instrumentation, and battery-powered edge devices where supply stability and firmware integrity are essential.
Technical Context
The X5163S8Z-2.7T1 implements a dual-function CS/WDI pin for chip select and watchdog input, with volatile flag bits distinguishing watchdog vs. low-voltage reset causes. Its internal VTRIP comparator uses factory-trimmed reference circuitry, reprogrammable via external VP pulses on SCK/SI pins under controlled VCC bias conditions.
It combines four independent functional blocks: a power-on reset generator asserting RESET/RESET down to 1V VCC, a configurable watchdog timer with nonvolatile WD0/WD1 bits, a low-VCC detector with hysteresis (20mV), and a 2K × 8 SPI EEPROM array supporting 32-byte page writes and 100,000 write cycles - all sharing a single 4-wire SPI bus with MSB-first protocol and WREN/WRSR command set.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V to 5.5V - supports wide-input industrial and battery-backed systems without external regulators. |
| VTRIP Threshold | 2.55V to 2.7V - factory-set trip point for active-low reset assertion during brownout; reprogrammable for precision tuning. |
| Watchdog Timeout | Selectable: 200ms / 600ms / 1.4s - configured via nonvolatile WD0/WD1 bits; persists across power cycles. |
| EEPROM Capacity | 16Kbit (2K × 8) - organized as serial memory with Block Lock™ protection for 0%, 25%, 50%, or 100% array locking. |
| SPI Interface Speed | Up to 2MHz - compatible with standard SPI modes 0,0 and 1,1; enables fast configuration reads/writes in real-time systems. |
| Standby Current | <20µA at 3.6V with watchdog enabled - extends battery life in always-on monitoring applications. |
| Reset Validity | RESET/RESET asserted down to VCC = 1V - ensures deterministic reset behavior even during deep undervoltage events. |
Pinout & Package
Package: 8-lead SOIC (RoHS-compliant, MDP0027 footprint).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS/WDI | Chip Select / Watchdog Input | Active-low enable for SPI commands; falling edge restarts watchdog timer - dual-role pin reduces board routing complexity. |
| 2: SO | Serial Output | Push-pull data output synchronized to SCK falling edge - eliminates need for external pull-up in most host interfaces. |
| 3: WP | Write Protect | Hardware lock for Status Register writes when WPEN bit = 1 - prevents accidental corruption of watchdog or block-lock settings. |
| 4: VSS | Ground | Reference return path for all analog and digital functions; must be low-impedance for stable reset threshold accuracy. |
| 5: SI | Serial Input | Data/address/opcode input latched on SCK rising edge - supports MSB-first SPI protocol with no byte-order ambiguity. |
| 6: SCK | Serial Clock | Master-generated clock controlling timing of all SPI transactions; also used as programming voltage input during VTRIP reconfiguration. |
| 7: RESET/RESET | Active-Low Reset Output | Open-drain output asserted during power-up, brownout, or watchdog timeout - requires external pull-up for MCU reset line interfacing. |
| 8: VCC | Supply Voltage | Primary power input for all internal circuits; also serves as reference for VTRIP comparator and programming voltage sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Reprogrammable VTRIP threshold | Enables field calibration of reset point using external VP pulses - avoids BOM proliferation for varying supply tolerances. |
| Block Lock™ EEPROM protection | Allows hardware/software-selectable write protection of 0%, 25%, 50%, or 100% of 16Kbit array - secures bootloader, calibration data, or security keys. |
| Volatile reset source flag | Distinguishes watchdog timeout from low-VCC event via status register bit - simplifies post-reset diagnostic logging in firmware. |
| Self-timed EEPROM write cycle | Guarantees 5ms typical write completion without host polling - frees MCU resources during nonvolatile storage operations. |
| Power-up reset at 1V | Ensures reset assertion before oscillator startup - prevents metastability or undefined state execution in low-VCC conditions. |
Applications
| Industrial PLC Controller | Medical Diagnostic Device |
|---|---|
Use Scenario: Microcontroller-based programmable logic controller operating in factory environments with fluctuating 3.3V rail. IC Role / Device Role / Timing Role: CPU supervisor providing power-on reset, brownout detection, and watchdog safety monitoring - ensures deterministic boot and fault recovery. Use Value: Prevents spurious I/O activation during unstable power; stores calibrated sensor offsets in protected EEPROM pages accessible only after secure unlock sequence. |
Use Scenario: Portable ultrasound unit powered by Li-ion battery with dynamic voltage sag during high-power transducer bursts. IC Role / Device Role / Timing Role: System monitor asserting RESET/RESET when VCC drops below 2.55V - maintains safe shutdown before data corruption occurs. Use Value: Guarantees clean reset at 1V VCC; retains last-known patient calibration parameters in EEPROM even after full discharge and cold start. |
| Smart Energy Meter | Automotive Body Control Module |
Use Scenario: ANSI C12.20-compliant electricity meter with tamper-detection logic and firmware update capability. IC Role / Device Role / Timing Role: Supervisory hub managing secure boot, watchdog supervision, and encrypted configuration storage in SPI EEPROM. Use Value: Block Lock™ protects firmware signature keys; reprogrammable VTRIP accommodates aging battery backup voltage drift over 15-year service life. |
Use Scenario: CAN-connected door module subject to load dump and cold-crank conditions per ISO 7637-2. IC Role / Device Role / Timing Role: Power integrity guardian triggering hard reset if 5V rail collapses below 2.55V during cranking - prevents CAN node lockup. Use Value: Active-low RESET/RESET drives microcontroller reset pin directly; EEPROM stores seat position profiles with write-protection against ESD-induced corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPU supervisor with EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6369ESA+ | Single 2.5V fixed VTRIP; no VTRIP reprogramming; 16Kbit EEPROM; same 8-SOIC package. | Lacks field-adjustable reset threshold - suitable only where supply tolerance is tightly controlled. | Choose when design requires proven automotive qualification (AEC-Q100 Grade 2) and fixed-threshold simplicity. |
| STM8AF6266TAY | Integrated 8-bit MCU + 16KB Flash + 2KB EEPROM + supervisor peripherals - not a standalone supervisor. | Requires firmware development; no discrete reset pin - resets handled internally via software-controlled registers. | Choose when system consolidation justifies replacing discrete supervisor + MCU with single-chip solution and added processing overhead. |
Compared with MAX6369ESA+ and STM8AF6266TAY, the X5163S8Z-2.7T1 uniquely balances configurability (reprogrammable VTRIP, selectable watchdog), robustness (1V reset validity), and drop-in compatibility - making it optimal for designs needing field-serviceable voltage thresholds without MCU integration trade-offs.
Availability
X5163S8Z-2.7T1 is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, smart metering, and automotive body electronics requiring stable component supply across extended product lifecycles.
Supply support for X5163S8Z-2.7T1 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 (formerly Intersil) is a global semiconductor leader specializing in microcontrollers, analog, power management, and trusted computing solutions for industrial, automotive, and infrastructure markets.
The X5163S8Z-2.7T1 belongs to Renesas' legacy CPU supervisor family designed specifically for embedded systems requiring integrated reset, watchdog, and nonvolatile memory - emphasizing reliability, low-power operation, and field-programmable flexibility.
FAQ
What is the exact VTRIP voltage range for X5163S8Z-2.7T1?
The X5163S8Z-2.7T1 has a factory-set VTRIP range of 2.55V to 2.7V (typical 2.63V) for active-low reset assertion. This threshold is reprogrammable using the VP pulse method described in the FN8128 datasheet - enabling precise field calibration to match actual system supply tolerances without changing hardware.
Does X5163S8Z-2.7T1 support both active-low and active-high reset outputs?
No - X5163S8Z-2.7T1 provides only an active-low RESET/RESET output. The "X5165" variant in the same family offers active-high reset; however, the X5163S8Z-2.7T1 part number explicitly denotes the active-low version and does not support active-high operation.
How is the watchdog timeout period selected on X5163S8Z-2.7T1?
The watchdog timeout on X5163S8Z-2.7T1 is selected via two nonvolatile bits (WD1 and WD0) in the Status Register, programmed using the WRSR instruction. Valid combinations yield 200ms (WD1=1, WD0=0), 600ms (WD1=0, WD0=1), or 1.4s (WD1=0, WD0=0); WD1=1, WD0=1 disables the watchdog.
Can the EEPROM in X5163S8Z-2.7T1 be fully protected against writes?
Yes - the X5163S8Z-2.7T1 supports full EEPROM array protection using Block Lock™. Setting BL1=1 and BL0=1 in the Status Register locks all 2K bytes (0x0000–0x07FF), allowing read-only access until the bits are reprogrammed - ideal for safeguarding immutable firmware or calibration data.
What is the maximum SPI clock frequency supported by X5163S8Z-2.7T1?
X5163S8Z-2.7T1 supports SPI communication up to 2MHz across its full 2.7V–5.5V VCC range. Timing parameters including tSU (50ns), tH (50ns), and tCYC (500ns) are guaranteed per the FN8128 Rev 4.00 datasheet - ensuring reliable operation with modern microcontrollers' high-speed SPI peripherals.
X5163S8Z-2.7T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- 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:
- 2.63V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
X5163S8Z-2.7T1 FAQ
1.How can I place an order for X5163S8Z-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X5163S8Z-2.7T1 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 X5163S8Z-2.7T1 reliable?
The price and inventory of X5163S8Z-2.7T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X5163S8Z-2.7T1 is usually 5 days.
3.What payment methods are accepted for X5163S8Z-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X5163S8Z-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X5163S8Z-2.7T1?
X5163S8Z-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X5163S8Z-2.7T1 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 X5163S8Z-2.7T1?
For technical support, including X5163S8Z-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X5163S8Z-2.7T1 requirements.
6.How does Aetrix verify that X5163S8Z-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X5163S8Z-2.7T1 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 X5163S8Z-2.7T1 meets industry standards.
7.What is the process for return or replacement of X5163S8Z-2.7T1?
All X5163S8Z-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X5163S8Z-2.7T1, 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 X5163S8Z-2.7T1 part is unused and in its original packaging.
Return procedure for X5163S8Z-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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