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Renesas R1EX25004ATA00I#S0
- Part No.:
- R1EX25004ATA00I#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R1EX25004ATA00I#S0.pdf
- Description:
- IC EEPROM 4KBIT SPI 5MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
R1EX25004ATA00I#S0 from Renesas Electronics is a 4-kbit Serial Peripheral Interface (SPI) EEPROM organized as 512 words × 8 bits, operating from 1.8 V to 5.5 V supply, supporting SPI modes 0 and 3, with 3 MHz max clock at 1.8 V and 5 MHz at ≥2.5 V, and delivering 16-byte page write capability for embedded system configuration storage.
For engineers reviewing the R1EX25004ATA00I#S0 datasheet, R1EX25004ATA00I#S0 pinout, R1EX25004ATA00I#S0 application, or R1EX25004ATA00I#S0 equivalent, this device serves as a low-power, industrial-temperature nonvolatile memory for firmware parameter retention, sensor calibration data logging, and secure boot configuration in space-constrained designs using TSSOP-8 packaging.
Technical Context
This SPI EEPROM implements MONOS floating-gate memory technology with CMOS low-voltage circuitry to achieve 1,000k write endurance and 100-year data retention at 25°C. It supports hardware write protection via the W pin and software block protection via BP1/BP0 bits in the status register.
The device features dual SPI mode compatibility (0 and 3), automatic page write with 16-byte granularity, and HOLD functionality that pauses serial communication without deselecting the chip-enabling multi-master arbitration and real-time suspend/resume of memory access sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 4 kbit (512 × 8-bit) - sufficient for storing bootloader configuration, device ID, calibration coefficients, or small firmware patches |
| Supply voltage range | 1.8 V to 5.5 V - enables direct interfacing with 1.8 V, 3.3 V, and 5 V logic domains without level shifting |
| Max clock frequency | 5 MHz at ≥2.5 V / 3 MHz at 1.8 V - determines maximum read/write throughput (up to ~500 kbit/s effective) |
| Write cycle time | 5 ms per page - defines worst-case latency for committing configuration changes during power-down sequences |
| Endurance & retention | 1,000k cycles @25°C / 100 years @25°C - ensures long-term reliability in field-deployed industrial controllers and medical devices |
| Operating temperature | −40°C to +85°C - qualified for use in automotive body control modules, industrial PLCs, and outdoor IoT gateways |
| Package | TSSOP-8 (PTSP0008JC-B) - 4.4 mm × 3.0 mm footprint with 0.65 mm pitch, suitable for high-density PCB layouts |
Pinout & Package
Package: 8-pin plastic TSSOP (JEITA code PTSP0008JC-B, Renesas code TTP-8DAV), lead-free and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Accepts 1.8–5.5 V; requires local 0.1 μF ceramic bypass capacitor to VSS for noise immunity |
| VSS | Ground reference | System ground return path; must be low-impedance and co-located with bypass capacitor |
| S (Chip Select) | Active-low device enable | Drives Q to high-Z when high; falling edge initiates instruction decoding; must be held stable during HOLD |
| C (Serial Clock) | Interface timing reference | Controls data sampling on rising edge (D) and output transition on falling edge (Q); supports modes 0/3 |
| D (Data In) | Serial command/address/data input | Latches instruction byte, address, and write data on rising C edge; ignored during HOLD |
| Q (Data Out) | Serial memory output | Shifts out read data on falling C edge; enters high-Z state when S high or HOLD active |
| W (Write Protect) | Hardware write inhibit | Low disables all WRITE/WRSR instructions; does not affect READ or status register reads |
| HOLD | Communication pause control | Halts ongoing SPI transaction without resetting internal state; requires C low for valid assertion/deassertion |
Key Features
| Feature | Design Value |
|---|---|
| MONOS memory technology | Enables 1,000k endurance and 100-year data retention while reducing leakage vs. traditional floating-gate EEPROM |
| 16-byte page write | Reduces average write time by up to 16× versus byte-write mode, critical for fast configuration updates |
| Hardware + software write protection | Combines W pin (global disable) and BP1/BP0 bits (configurable protected blocks) for layered security against corruption |
| HOLD function | Allows external master to suspend SPI transfers mid-sequence without losing address pointer or command context |
| Industrial temperature range | Validated operation from −40°C to +85°C ensures reliability in uncontrolled environments like factory floors or vehicle cabins |
Applications
| Industrial Sensor Node | Automotive Body Control Module |
|---|---|
Use Scenario: Storing calibrated offset/gain values and fault history logs in a wireless temperature/humidity sensor node deployed outdoors. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with infrequent writes and frequent reads; retains data across battery replacement or deep sleep cycles. Use Value: Eliminates need for external backup power or supercapacitors due to 1.8 V operation and sub-μA standby current (0.5 μA typ). | Use Scenario: Holding door lock actuator calibration profiles and last-known position states in a vehicle body control unit (BCU). IC Role / Device Role / Timing Role: Secure, tamper-resistant memory for safety-critical settings; accessed during wake-up and before CAN message transmission. Use Value: Hardware W pin prevents accidental overwrites during ECU reset transients; BP bits protect factory-set parameters from field updates. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Recording drug delivery history, dose limits, and user audit trails in an FDA-regulated infusion pump with battery backup. IC Role / Device Role / Timing Role: High-reliability data logger with guaranteed 100-year retention and 1,000k endurance for regulatory compliance. Use Value: Meets IEC 62304 Class C software requirements for persistent data integrity without periodic refresh cycles. | Use Scenario: Storing tariff schedules, metering calibration constants, and tamper-event timestamps in a DIN-rail mounted electricity meter. IC Role / Device Role / Timing Role: Secure configuration store interfaced to an MCU's SPI peripheral; accessed during power-on initialization and firmware updates. Use Value: TSSOP-8 package fits tight meter PCB constraints; 3.3 V compatibility eliminates level-shifter components in 3.3 V MCU designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25SF041-SSHD-B | 4 Mbit density, quad SPI interface, 104 MHz max clock, no HOLD pin, different status register map | Higher bandwidth but larger footprint (SOIC-8); lacks HOLD for multi-master arbitration | Select only if migrating to quad SPI architecture and requiring >4 kbit capacity |
| M95040-DRMN6TP/K | 4 kbit, same TSSOP-8 package, 20 MHz max clock at 5 V, 1 million endurance, no hardware W pin | Higher speed but no dedicated write-protect pin; relies solely on software BP bits | Prefer when board layout rework is unacceptable and hardware W is not required for system-level protection |
Compared with AT25SF041-SSHD-B and M95040-DRMN6TP/K, the R1EX25004ATA00I#S0 provides unique HOLD functionality for deterministic SPI bus sharing, integrated hardware write protection, and verified 100-year data retention-making it optimal for safety-critical, low-power, and space-constrained industrial applications where deterministic timing and robustness outweigh raw speed or density.
Availability
R1EX25004ATA00I#S0 is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, and medical infusion pumps requiring stable component supply across extended product lifecycles.
Supply support for R1EX25004ATA00I#S0 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 memory solutions for automotive, industrial, and IoT markets.
The R1EX25xxx series targets cost-sensitive, low-power embedded systems needing reliable nonvolatile storage with minimal external components and broad voltage compatibility.
FAQ
What is the memory organization of the R1EX25004ATA00I#S0?
The R1EX25004ATA00I#S0 contains 4,096 bits of EEPROM memory organized as 512 words × 8 bits. Its address space spans 000h to 1FFh (9-bit addressing), with A8 used as the most significant address bit in READ and WRITE instructions. This structure supports efficient byte-level access and page-based programming across 32-byte pages.
Does the R1EX25004ATA00I#S0 support both SPI mode 0 and mode 3?
Yes, the R1EX25004ATA00I#S0 explicitly supports SPI mode 0 (CPOL = 0, CPHA = 0) and mode 3 (CPOL = 1, CPHA = 1), as confirmed in the datasheet Features section. This dual-mode compatibility allows seamless integration with diverse host MCUs without requiring custom SPI peripheral configuration or bit-banging workarounds.
What is the purpose of the HOLD pin on the R1EX25004ATA00I#S0?
The HOLD pin on the R1EX25004ATA00I#S0 pauses ongoing SPI communication without deselecting the device or resetting internal state. When asserted (low) while C is low, it places Q in high-Z and ignores D and C transitions-enabling multi-master arbitration or real-time interruption of long read/write sequences. The R1EX25004ATA00I#S0 resumes exactly where it left off upon HOLD deassertion.
How does hardware write protection work on the R1EX25004ATA00I#S0?
Hardware write protection on the R1EX25004ATA00I#S0 is implemented via the W (Write Protect) pin: when driven low, it globally disables all WRITE and WRSR instructions regardless of WEL or BP bit states. This provides fail-safe protection against spurious writes during power transients or software faults-complementing the software-configurable BP1/BP0 block protection bits in the status register.
What package type is used for the R1EX25004ATA00I#S0?
The R1EX25004ATA00I#S0 uses an 8-pin plastic TSSOP package (JEITA code PTSP0008JC-B, Renesas code TTP-8DAV), measuring 4.4 mm × 3.0 mm with 0.65 mm lead pitch. It is lead-free and halogen-free, and ships in tape-and-reel format (3,000 units per reel), optimized for automated SMT assembly in space-constrained industrial and automotive PCBs.
R1EX25004ATA00I#S0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 4Kbit
- Memory Organization:
- 512 x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 5 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
R1EX25004ATA00I#S0 FAQ
1.How can I place an order for R1EX25004ATA00I#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1EX25004ATA00I#S0 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 R1EX25004ATA00I#S0 reliable?
The price and inventory of R1EX25004ATA00I#S0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1EX25004ATA00I#S0 is usually 5 days.
3.What payment methods are accepted for R1EX25004ATA00I#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1EX25004ATA00I#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1EX25004ATA00I#S0?
R1EX25004ATA00I#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1EX25004ATA00I#S0 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 R1EX25004ATA00I#S0?
For technical support, including R1EX25004ATA00I#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1EX25004ATA00I#S0 requirements.
6.How does Aetrix verify that R1EX25004ATA00I#S0 is sourced from the original manufacturer or authorized distributors?
All R1EX25004ATA00I#S0 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 R1EX25004ATA00I#S0 meets industry standards.
7.What is the process for return or replacement of R1EX25004ATA00I#S0?
All R1EX25004ATA00I#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1EX25004ATA00I#S0, 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 R1EX25004ATA00I#S0 part is unused and in its original packaging.
Return procedure for R1EX25004ATA00I#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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