My Inquiry
My Account
Renesas R1EX25064ATA00A#UN
- Part No.:
- R1EX25064ATA00A#UN
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- -
- Datasheet:
-
R1EX25064ATA00A#UN.pdf
- Description:
- EEPROM, 8KX8, SERIAL
- Quantity:
- Payment:
- Shipping:
Inventory:82,276
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R1EX25064ATA00A from Renesas Electronics is a 64-kbit (8,192 × 8-bit) serial EEPROM with SPI interface, MONOS memory technology, and TSSOP-8 package. It operates from 1.8 V to 5.5 V, supports up to 3 MHz clock at 1.8 V, delivers 5 ms write cycle time, and guarantees 1,000k endurance cycles and 100-year data retention at 25°C - used for configuration storage in consumer audio equipment and camcorders.
For engineers reviewing the R1EX25064ATA00A datasheet, R1EX25064ATA00A pinout, R1EX25064ATA00A application, or R1EX25064ATA00A equivalent, key selection criteria include SPI mode 0/3 compatibility, hardware write protection via W and HOLD pins, 32-byte page programming, −40°C to +85°C industrial temperature range, and lead-free TSSOP-8 packaging.
Technical Context
This device implements a Serial Peripheral Interface (SPI) with support for Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1), enabling interoperability with standard microcontroller SPI peripherals. Its internal architecture uses MONOS (Metal-Oxide-Nitride-Oxide-Silicon) charge-trap nonvolatile memory cells, delivering high reliability without floating-gate wear mechanisms.
The R1EX25064ATA00A integrates a status register with WIP, WEL, BP1/BP0, and SRWD bits, allowing software-controlled block protection and hardware-locked register writes when W is low and SRWD is set. It features automatic 32-byte page write execution and supports continuous read with address rollover across the full 8-kword memory space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 64 kbit (8,192 × 8-bit) - provides sufficient space for firmware parameters, calibration data, or user settings in compact embedded systems. |
| Interface | SPI bus (Mode 0 and Mode 3) - ensures plug-and-play compatibility with most MCU SPI controllers without custom timing logic. |
| Supply voltage | 1.8 V to 5.5 V - enables direct integration into mixed-voltage systems (e.g., 3.3 V logic with 1.8 V I/O domains). |
| Max clock frequency | 3 MHz at 1.8 V - sustains reliable communication in low-power battery-operated devices while maintaining timing margin. |
| Write cycle time | 5 ms per page (32 bytes) - reduces firmware update latency compared to byte-write-only EEPROMs. |
| Endurance | 1,000,000 write/erase cycles at 25°C - supports frequent field-updatable configurations in industrial control nodes. |
| Data retention | 100 years at 25°C - ensures long-term validity of stored calibration coefficients or security keys over product lifetime. |
| Operating temperature | −40°C to +85°C - qualifies for use in automotive cabin electronics and industrial edge sensors without derating. |
Pinout & Package
Package: 8-pin plastic TSSOP (PTSP0008JC-B / TTP-8DAV), lead-free, 3.0 mm × 4.4 mm footprint, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Accepts 1.8–5.5 V; decoupling capacitor required within 10 mm for stable SPI read/write operation. |
| VSS | Ground reference | Must be connected directly to system ground plane; shared return path with MCU SPI signals. |
| S (Chip Select) | Active-low device enable | Drives device into active mode on falling edge; must remain low during full instruction sequence. |
| C (Serial Clock) | Timing input for SPI | Controls latching of D (rising edge) and output transition on Q (falling edge); max 3 MHz at 1.8 V. |
| D (Data Input) | Serial instruction/address/data input | Latches command opcodes (e.g., 0x02 for WRITE), addresses, and payload on rising C edge. |
| Q (Data Output) | Serial data output | Drives read data on falling C edge; high-impedance when S is high or HOLD is asserted. |
| W (Write Protect) | Hardware lock control | When low and SRWD=1, disables WRSR and locks BP1/BP0 bits - prevents accidental register corruption. |
| HOLD | Communication pause signal | Halts ongoing SPI transfer without deselecting device; Q goes high-Z, D/C ignored until HOLD deasserted. |
Key Features
| Feature | Design Value |
|---|---|
| MONOS memory cell technology | Enables 1M-cycle endurance and 100-year data retention without gate oxide degradation seen in floating-gate EEPROMs. |
| 32-byte page write capability | Reduces average write time by 97% vs. byte-wise writes - critical for rapid parameter updates in real-time systems. |
| Dual SPI mode support (0 and 3) | Eliminates need for level-shifting or firmware workarounds when interfacing with diverse host MCUs (e.g., ARM Cortex-M, PIC, MSP430). |
| Hardware + software write protection | Combines W pin assertion with BP1/BP0 status register bits to define protected memory blocks - prevents firmware corruption during power glitches. |
| Low-power standby current | 2 µA max at 5.5 V - extends battery life in always-on IoT sensor nodes where EEPROM is polled infrequently. |
| Lead-free TSSOP-8 package | Meets RoHS compliance and enables automated reflow assembly in high-volume consumer electronics manufacturing. |
Applications
| Audio Equipment Configuration Storage | Camcorder User Settings Retention |
|---|---|
Use Scenario: Storing equalizer presets, input source mappings, and volume limit thresholds in portable Bluetooth speakers. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed via SPI during boot and runtime adjustment. Use Value: Preserves user preferences across power cycles without requiring backup batteries or supercapacitors. |
Use Scenario: Saving resolution modes, white balance offsets, and timestamp formats between recording sessions in handheld camcorders. IC Role / Device Role / Timing Role: Dedicated SPI EEPROM for persistent parameter storage independent of main SoC flash. Use Value: Enables instant resume of last-used settings after cold start, improving UX consistency and reducing initialization delay. |
| Smart Home Sensor Calibration Data | Industrial HMI Display Profile Memory |
Use Scenario: Holding factory-calibrated ADC offset/gain coefficients and temperature compensation tables in Zigbee-enabled environmental sensors. IC Role / Device Role / Timing Role: Read-once-at-boot storage element interfaced to MCU's SPI peripheral during initialization. Use Value: Ensures measurement accuracy remains traceable to NIST standards over 10+ years without recalibration. |
Use Scenario: Storing UI theme colors, language localization strings, and touch-screen calibration matrices in panel-mounted HMIs for factory automation. IC Role / Device Role / Timing Role: SPI-configurable memory mapped to MCU's external peripheral address space via GPIO-controlled chip select. Use Value: Allows field technicians to update display behavior via USB-to-SPI adapter without reflashing main controller firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25DF041A-SSH-T | 4 Mbit density, quad SPI interface, 85 MHz max clock, no HOLD pin | Targeted at firmware code storage, not parameter EEPROM; lacks hardware HOLD functionality | Select only if higher density and faster read speed outweigh loss of HOLD and simpler SPI protocol. |
| M95M04-DRMN6TP/K | 4 Mbit, SPI-compatible, 20 MHz max clock, built-in write protection via WP pin and status register | Same 8-pin SO8/TSSOP8 footprint but larger die; higher active current (5 mA vs. 3.5 mA) | Prefer for designs needing >64 kbit capacity and tighter write-protection granularity, accepting higher power draw. |
Compared with AT25DF041A-SSH-T and M95M04-DRMN6TP/K, the R1EX25064ATA00A offers optimal balance of low-power operation (2 µA standby), deterministic 5 ms write timing, and dual-mode SPI compatibility - making it ideal for cost-sensitive, battery-aware consumer electronics where predictable small-block writes dominate.
Availability
R1EX25064ATA00A is available at Aetrix Electronics and suitable for audio equipment, camcorders, and smart home sensors requiring stable component supply, long-lifecycle support, and RoHS-compliant TSSOP packaging.
Supply support for R1EX25064ATA00A 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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and consumer markets.
The R1EX25xxx Series was designed specifically for reliable, low-voltage serial configuration storage in battery-powered consumer electronics - emphasizing endurance, data retention, and SPI interoperability over raw speed or density.
FAQ
What is the maximum SPI clock frequency supported by the R1EX25064ATA00A at 1.8 V?
The R1EX25064ATA00A supports up to 3 MHz SPI clock frequency when operating at 1.8 V to 5.5 V supply voltage. This is specified in the AC Characteristics table under "Clock frequency" for the 1.8 V to 5.5 V condition. At higher voltages (2.5 V to 5.5 V), the device supports up to 5 MHz, but the R1EX25064ATA00A variant is rated for 3 MHz across its full voltage range to ensure robustness at minimum supply.
Does the R1EX25064ATA00A support hardware write protection independent of software commands?
Yes, the R1EX25064ATA00A supports hardware write protection via the W (Write Protect) pin in conjunction with the SRWD bit in the status register. When SRWD = 1 and W is driven low, the device enters Hardware Protected Mode, locking BP1/BP0 bits and disabling Write Status Register (WRSR) instructions - preventing accidental modification even if firmware issues erroneous commands.
What package type and dimensions does the R1EX25064ATA00A use?
The R1EX25064ATA00A uses an 8-pin plastic TSSOP package (PTSP0008JC-B / TTP-8DAV), measuring 3.0 mm × 4.4 mm with 0.65 mm lead pitch. It is lead-free and RoHS compliant, compatible with standard reflow soldering profiles for high-volume surface-mount assembly.
How many write/erase cycles can the R1EX25064ATA00A endure at 85°C?
The R1EX25064ATA00A guarantees a minimum of 100,000 write/erase cycles at 85°C, as specified in the Memory Cell Characteristics table. At 25°C, endurance is rated at 1,000,000 cycles. This derating reflects accelerated wear at elevated temperature and ensures reliable operation in thermally demanding environments like enclosed consumer enclosures.
Can the R1EX25064ATA00A be used in automotive applications?
Renesas explicitly states that the R1EX25064ATA00A is authorized for consumer applications such as cellular phones, camcorders, and audio equipment. Use in automotive systems requires prior written consent from Renesas Electronics, as automotive qualifies under "High Quality" grade and demands additional qualification testing beyond standard industrial specs.
R1EX25064ATA00A#UN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- -
- Memory Format:
- -
- Technology:
- -
- Memory Size:
- -
- Memory Organization:
- -
- Memory Interface:
- -
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
R1EX25064ATA00A#UN FAQ
1.How can I place an order for R1EX25064ATA00A#UN through Aetrix?
Please submit a Request for Quotation (RFQ) for R1EX25064ATA00A#UN 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 R1EX25064ATA00A#UN reliable?
The price and inventory of R1EX25064ATA00A#UN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1EX25064ATA00A#UN is usually 5 days.
3.What payment methods are accepted for R1EX25064ATA00A#UN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1EX25064ATA00A#UN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1EX25064ATA00A#UN?
R1EX25064ATA00A#UN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1EX25064ATA00A#UN 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 R1EX25064ATA00A#UN?
For technical support, including R1EX25064ATA00A#UN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1EX25064ATA00A#UN requirements.
6.How does Aetrix verify that R1EX25064ATA00A#UN is sourced from the original manufacturer or authorized distributors?
All R1EX25064ATA00A#UN 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 R1EX25064ATA00A#UN meets industry standards.
7.What is the process for return or replacement of R1EX25064ATA00A#UN?
All R1EX25064ATA00A#UN units undergo pre-shipment inspection (PSI). If there is an issue with R1EX25064ATA00A#UN, 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 R1EX25064ATA00A#UN part is unused and in its original packaging.
Return procedure for R1EX25064ATA00A#UN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1EX25064ATA00A#UN Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
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…
