My Inquiry
My Account
Renesas X5329S8Z-2.7
- Part No.:
- X5329S8Z-2.7
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X5329S8Z-2.7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,639
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X5329S8Z-2.7 from Renesas Electronics is a CPU supervisor IC integrating power-on reset control, supply voltage supervision, and 32Kbit SPI EEPROM in an 8-lead SOIC package. It asserts an active-high RESET output when VCC falls below 2.55–2.7V, supports 2.7–5.5V operation, delivers <1µA standby current, and features reprogrammable VTRIP for precision brownout detection in embedded microcontroller systems.
For engineers reviewing the X5329S8Z-2.7 datasheet, X5329S8Z-2.7 pinout, X5329S8Z-2.7 application, or X5329S8Z-2.7 equivalent, this device serves as a system-level power integrity and nonvolatile configuration manager-particularly where single-chip reset + memory integration reduces BOM count and improves reliability in space-constrained industrial controllers and IoT edge nodes.
Technical Context
The X5329S8Z-2.7 implements dual-function supervision: a power-on reset circuit that activates at ~1V and holds RESET high for 100–280ms, and a low-VCC detector with hysteresis (20mV) that asserts RESET when VCC drops below its factory-set 2.55–2.7V trip point. The reset remains active until VCC exceeds VTRIP for ≥200ms.
Its integrated SPI EEPROM operates at up to 2MHz (modes 0,0 and 1,1), supports 32-byte page writes with 5ms typical write cycle time, and includes Block Lock™ protection configurable to lock 0%, 25%, 50%, or 100% of the 32Kbit array. The WP pin and nonvolatile WPEN bit enable in-circuit programmable ROM mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V to 5.5V - supports wide-input industrial and battery-powered systems without external regulators |
| VTRIP Threshold | 2.55V to 2.7V - factory-programmed brownout detection point with ±100mV accuracy at 25°C |
| RESET Polarity | Active HIGH - directly interfaces with microcontrollers requiring high-asserted reset signals |
| EEPROM Size | 32Kbit (4K × 8) - stores boot configuration, calibration data, or firmware metadata without external memory |
| Standby Current | <1µA at VCC = 5.5V - enables multi-year battery life in always-on monitoring applications |
| SPI Clock Speed | Up to 2MHz - compatible with standard MCU SPI peripherals without clock divider tuning |
| Write Endurance | 100,000 cycles - sufficient for field-updatable parameter storage over product lifetime |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, Pb-free with matte tin anneal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CS | Chip Select Input | Enables SPI communication when LOW; places device in standby when HIGH |
| 2 SO | Serial Output | Push-pull data output synchronized to SCK falling edge; high-impedance when CS HIGH |
| 3 WP | Write Protect Input | Hardware lock for Status Register when WPEN = 1; enables in-circuit programmable ROM mode |
| 4 VSS | Ground Reference | Primary return path for all internal circuits and I/O drivers |
| 5 SI | Serial Input | Latches opcode, address, and data on SCK rising edge; MSB-first protocol |
| 6 SCK | Serial Clock | Master-controlled timing signal; rising edge clocks inputs, falling edge clocks outputs |
| 7 RESET/RESET | Reset Output | Open-drain active-HIGH reset signal; asserted at power-up (~1V) and during brownout |
| 8 VCC | Supply Voltage | Primary power input; powers both supervisor logic and EEPROM array |
Key Features
| Feature | Design Value |
|---|---|
| Reprogrammable VTRIP | Field-adjustable reset threshold via VP pulse sequence on SCK/SI - enables fine-tuning without hardware change |
| Block Lock™ Protection | Nonvolatile BL0/BL1 bits allow selective write-protection of 0%, 25%, 50%, or 100% of EEPROM - prevents accidental firmware corruption |
| Power-Up Reset Timing | tPURST = 100–280ms - ensures stable VCC and oscillator startup before processor release |
| Low-Voltage Validity | RESET remains valid down to VCC = 1V - guarantees reliable reset assertion even during deep brownout |
| Direct Write™ EEPROM Cell | 100-year data retention and 100,000 write cycles - eliminates need for wear-leveling firmware |
Applications
| Industrial PLC Controller | Smart Meter Firmware Storage |
|---|---|
Use Scenario: Microcontroller-based programmable logic controller operating from 3.3V rail with variable load-induced voltage sag. IC Role / Device Role / Timing Role: Monitors VCC for sub-2.7V brownout events and asserts active-HIGH RESET to halt execution; stores I/O configuration and calibration constants in protected EEPROM blocks. Use Value: Prevents erratic logic states during undervoltage; eliminates external reset IC and serial flash, reducing PCB area by 32 mm². |
Use Scenario: Utility meter with tamper-resistant firmware update capability and lifetime energy logging. IC Role / Device Role / Timing Role: Provides power-fail reset signaling and secure, block-locked storage of tariff tables, meter ID, and cryptographic keys. Use Value: Enables field-upgradable firmware while preventing unauthorized EEPROM modification via WP pin + WPEN bit lock. |
| Medical Sensor Node | Automotive Body Control Module |
Use Scenario: Battery-powered wearable sensor collecting physiological data with periodic BLE transmission. IC Role / Device Role / Timing Role: Delivers <1µA standby current and brownout reset at 2.55V to preserve battery life; retains sensor calibration offsets and device serial number. Use Value: Extends coin-cell battery life beyond 5 years; avoids data loss during low-battery shutdown sequences. |
Use Scenario: 12V automotive subsystem regulated to 3.3V, subject to load dump and cold-crank transients. IC Role / Device Role / Timing Role: Supervises post-regulator VCC and provides glitch-free reset during cranking; stores seat position presets and lighting profiles. Use Value: Guarantees deterministic MCU reset under ISO 7637-2 Pulse 4; eliminates separate EEPROM and reset IC BOM line items. |
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 |
|---|---|---|---|
| MAX6369KA27+T | Fixed 2.63V reset threshold; no VTRIP reprogramming; 16Kbit EEPROM; 3.0–5.5V operation | Lacks field-adjustable trip point and half the EEPROM capacity; suitable only for fixed-threshold designs | Select when VTRIP tuning is unnecessary and 16Kbit storage suffices |
| STM8AF6266TCY | MCU with embedded 2Kbyte EEPROM and reset generator; requires firmware development; no standalone supervisor mode | Not a drop-in replacement - demands full software integration and validation effort | Choose only when system already uses STM8 and firmware resources permit custom reset logic |
Compared with MAX6369KA27+T and STM8AF6266TCY, the X5329S8Z-2.7 uniquely combines field-reprogrammable VTRIP, 32Kbit EEPROM, and active-HIGH reset in a pin-compatible 8-SOIC package - enabling rapid deployment without firmware changes or layout revision.
Availability
X5329S8Z-2.7 is available at Aetrix Electronics and suitable for industrial PLC controllers, smart meter firmware storage, medical sensor nodes, automotive body control modules, and battery-backed data loggers requiring stable component supply across extended temperature ranges (0°C to 70°C).
Supply support for X5329S8Z-2.7 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The X5329S8Z-2.7 belongs to Renesas' CPU Supervisor with EEPROM family, designed to consolidate power monitoring, reset generation, and nonvolatile storage into a single chip for cost-sensitive, space-constrained embedded systems.
FAQ
What is the factory-programmed VTRIP range for X5329S8Z-2.7?
The X5329S8Z-2.7 is factory-programmed with a VTRIP range of 2.55V to 2.7V, verified per FN8132 Rev 3.00 Page 2 ordering table. This threshold is guaranteed over temperature (0°C to 70°C) and may be reprogrammed higher using the VP pulse sequence on SCK and SI pins - but not lowered without first executing the VTRIP reset procedure.
Does X5329S8Z-2.7 support active-low reset configurations?
No - the X5329S8Z-2.7 provides only active-HIGH RESET output, as indicated by the "RESET ACTIVE HIGH" designation in the ordering information table (Page 2). For active-low reset, Renesas offers the pin-compatible X5328S8Z-2.7 variant, which shares identical EEPROM, VTRIP, and package specifications but asserts RESET/RESET low during fault conditions.
How is EEPROM write protection implemented on X5329S8Z-2.7?
X5329S8Z-2.7 implements three-tier write protection: (1) hardware WP pin + nonvolatile WPEN bit for Status Register lock, (2) volatile Write Enable Latch (WEL) requiring WREN instruction before each write, and (3) nonvolatile BL0/BL1 bits enabling Block Lock™ protection of 0%, 25%, 50%, or 100% of the 32Kbit array - all documented in Pages 6–7 of FN8132.
What is the maximum SPI clock frequency supported by X5329S8Z-2.7?
The X5329S8Z-2.7 supports SPI clock frequencies up to 2MHz, confirmed in the AC Characteristics table (Page 12) and Features list (Page 1). It operates in SPI modes 0,0 and 1,1 only - meaning CPOL = 0/1 and CPHA = 0/1 combinations are supported, but mode 0,1 and 1,0 are not.
Can the VTRIP threshold of X5329S8Z-2.7 be adjusted in-system after soldering?
Yes - the VTRIP threshold of X5329S8Z-2.7 can be reprogrammed in-system using a 15–18V programming voltage (VP) applied to SCK and SI while CS is pulsed LOW/HIGH, as detailed in Figures 1 and 3 (Pages 4–5). This requires no device removal or UV erasure, enabling field calibration without hardware modification.
X5329S8Z-2.7 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:
- 2.63V
- Output:
- Open Drain or Open Collector
- Reset:
- Active High
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
X5329S8Z-2.7 FAQ
1.How can I place an order for X5329S8Z-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X5329S8Z-2.7 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 X5329S8Z-2.7 reliable?
The price and inventory of X5329S8Z-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X5329S8Z-2.7 is usually 5 days.
3.What payment methods are accepted for X5329S8Z-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X5329S8Z-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X5329S8Z-2.7?
X5329S8Z-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X5329S8Z-2.7 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 X5329S8Z-2.7?
For technical support, including X5329S8Z-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X5329S8Z-2.7 requirements.
6.How does Aetrix verify that X5329S8Z-2.7 is sourced from the original manufacturer or authorized distributors?
All X5329S8Z-2.7 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 X5329S8Z-2.7 meets industry standards.
7.What is the process for return or replacement of X5329S8Z-2.7?
All X5329S8Z-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X5329S8Z-2.7, 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 X5329S8Z-2.7 part is unused and in its original packaging.
Return procedure for X5329S8Z-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X5329S8Z-2.7 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…
