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Renesas R1EX25016ATA00A#S0
- Part No.:
- R1EX25016ATA00A#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R1EX25016ATA00A#S0.pdf
- Description:
- IC EEPROM 16KBIT SPI 5MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:20,270
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Product details
Overview
R1EX25016ATA00A from Renesas Electronics is a 16-kbit (2048 × 8-bit) Serial Peripheral Interface (SPI) EEPROM with MONOS memory technology, operating from 1.8 V to 5.5 V, supporting up to 3 MHz clock at 1.8 V, and housed in an 8-pin TSSOP package. It delivers high reliability for nonvolatile data storage in space-constrained consumer electronics.
For engineers reviewing the R1EX25016ATA00A datasheet, R1EX25016ATA00A pinout, R1EX25016ATA00A application, or R1EX25016ATA00A equivalent, this page provides verified technical context, SPI timing behavior, page-write capability, hardware write protection, and real-world use cases in audio equipment, camcorders, and embedded controllers.
Technical Context
The R1EX25016ATA00A implements SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), with dual-voltage AC timing: 5 MHz max at 2.5–5.5 V and 3 MHz max at 1.8–5.5 V. Its internal architecture includes a 32-byte page buffer, status register with BP1/BP0 block protection bits, and SRWD/W pin hardware-protected mode.
It uses MONOS (Metal-Oxide-Nitride-Oxide-Silicon) charge-trap technology for enhanced endurance (1,000k cycles @25°C) and data retention (100 years @25°C), and integrates low-voltage circuitry enabling full functionality down to 1.8 V while maintaining 3 µA standby current and fast 5–8 ms write cycle time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 kbit (2048 × 8-bit) - supports firmware parameter storage and calibration tables in compact systems |
| Supply voltage range | 1.8 V to 5.5 V - enables direct interface with 1.8 V logic, 3.3 V microcontrollers, and 5 V legacy systems without level shifting |
| Max SPI clock frequency | 3 MHz at 1.8 V - ensures reliable serial communication in low-power battery-operated devices |
| Page write size | 32 bytes - reduces total write time by up to 32× vs. byte-write for bulk configuration updates |
| Endurance & retention | 1,000k cycles / 100 years @25°C - meets long-life requirements for consumer electronics with infrequent but critical writes |
| Operating temperature | −40°C to +85°C - qualified for industrial-grade operation in enclosed enclosures and automotive cabin environments |
| Package | TSSOP-8 (PTSP0008JC-B) - 3.0 mm × 4.4 mm footprint ideal for space-limited PCB layouts |
Pinout & Package
8-pin TSSOP (PTSP0008JC-B), lead-free, 3.0 mm × 4.4 mm body, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S | Chip select | Active-low enable signal; must fall before first clock edge to initiate SPI command sequence |
| C | Serial clock | Input timing reference; rising edge latches D, falling edge drives Q; supports Mode 0/3 |
| D | Serial data input | Unidirectional input for instruction, address, and write data; sampled on C rising edge |
| Q | Serial data output | Unidirectional output for read data and status register; driven on C falling edge |
| W | Write protect | Hardware control for Status Register Write Disable (SRWD) mode when pulled low with SRWD=1 |
| HOLD | Communication pause | Halts ongoing SPI transfer without deselecting device; Q goes high-Z, D/C ignored |
| VCC | Supply voltage | 1.8–5.5 V power rail; decoupling capacitor required within 10 mm of pin |
| VSS | Ground | Reference return path; must be connected to low-impedance system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| MONOS memory technology | Enables 1,000k write cycles and 100-year data retention without oxide degradation mechanisms |
| 32-byte page programming | Reduces average write latency by batching up to 32 bytes per self-timed 5–8 ms cycle |
| Hardware + software write protection | Combines W pin and BP1/BP0 bits to lock memory blocks permanently or conditionally |
| Low-power active modes | 2.5 mA max read current and 3.0 mA max write current at 5.5 V support energy-efficient polling |
| Lead-free TSSOP-8 packaging | Meets RoHS compliance and enables automated SMT assembly with standard reflow profiles |
Applications
| Audio Equipment Configuration Storage | Camcorder User Settings Retention |
|---|---|
Use Scenario: Storing equalizer presets, input gain calibration, and user-defined sound profiles in portable Bluetooth speakers. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed via SPI during boot and runtime parameter updates. Use Value: Preserves settings across power cycles without backup battery; 32-byte page writes reduce update time during firmware upgrades. |
Use Scenario: Saving white balance offsets, exposure compensation values, and custom scene modes in digital camcorders. IC Role / Device Role / Timing Role: SPI EEPROM interfaced with image processor MCU for persistent camera tuning parameters. Use Value: Enables instant recall of user preferences after cold start; 1.8 V operation allows direct connection to low-voltage sensor subsystems. |
| Embedded Controller Calibration Data | Smart Home Device Network Credentials |
Use Scenario: Holding factory-calibrated ADC offset/gain coefficients and thermistor lookup tables in HVAC control modules. IC Role / Device Role / Timing Role: Read-once-at-boot memory for precision analog subsystem initialization. Use Value: Eliminates need for external trimming components; 100-year retention ensures calibration integrity over product lifetime. |
Use Scenario: Securing Wi-Fi SSID/password, Zigbee network keys, and OTA update certificates in smart thermostats. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for credentials accessed only during network initialization. Use Value: Hardware write protection (W + SRWD) prevents accidental or malicious overwrite of sensitive connectivity data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25160B-SSHL-T (Microchip) | 16 kbit SPI EEPROM, 5 MHz max, SOIC-8 only; no HOLD pin; 100k cycles endurance | Lacks HOLD function and lower endurance limits use in high-write-count calibration logging | Select if board already uses SOIC-8 footprint and HOLD is unused; verify endurance margin for field recalibration frequency |
| M95160-DFMN6TP/K (STMicroelectronics) | 16 kbit SPI EEPROM, 20 MHz max, TSSOP-8; built-in write protection via WP pin; 400k cycles | Higher speed and same package, but reduced endurance and different status register mapping | Prefer for designs requiring faster configuration loads; confirm compatibility of WP logic and status bit definitions in firmware |
Compared with AT25160B-SSHL-T and M95160-DFMN6TP/K, the R1EX25016ATA00A offers superior endurance (1,000k vs. ≤400k cycles), integrated HOLD functionality, and MONOS-based data retention stability-making it optimal for long-lifecycle consumer devices where firmware updates and user customization occur infrequently but must persist reliably.
Availability
R1EX25016ATA00A is available at Aetrix Electronics and suitable for audio equipment, camcorders, and embedded controllers requiring stable component supply, long-term data retention, and RoHS-compliant TSSOP packaging.
Supply support for R1EX25016ATA00A 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 global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and consumer markets.
The R1EX25xxx Series was designed specifically for cost-sensitive, space-constrained consumer electronics-including cellular phones, camcorders, and audio equipment-where high reliability, low-voltage operation, and compact packaging are essential.
FAQ
What is the maximum SPI clock frequency supported by the R1EX25016ATA00A at 1.8 V?
The R1EX25016ATA00A supports a maximum SPI clock frequency of 3 MHz when operating at 1.8 V to 5.5 V. 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), it supports up to 5 MHz. The R1EX25016ATA00A's dual-speed specification ensures compatibility across both low-power and performance-oriented designs.
Does the R1EX25016ATA00A support hardware write protection independent of software configuration?
Yes, the R1EX25016ATA00A supports hardware write protection via the W (Write Protect) pin in conjunction with the SRWD (Status Register Write Disable) bit. When SRWD = 1 and W is driven low, the device enters Hardware Protected Mode, locking BP1/BP0 and SRWD bits against modification-even if WREN and WRSR commands are issued. This feature is explicitly defined in the Functional Description section of the R1EX25016ATA00A datasheet.
What is the page size and write cycle time for the R1EX25016ATA00A?
The R1EX25016ATA00A has a fixed 32-byte page size and supports automatic page programming. Its write cycle time is 5 ms minimum at VCC ≥ 2.5 V and 8 ms minimum at VCC ≥ 1.8 V. These values are guaranteed across the full operating temperature range (−40°C to +85°C) and directly impact bulk write efficiency-enabling up to 32 bytes to be written in a single self-timed operation. This behavior is confirmed in the Features and AC Characteristics sections of the R1EX25016ATA00A documentation.
Can the R1EX25016ATA00A be used in automotive applications?
Renesas explicitly states that the R1EX25016ATA00A is authorized for consumer applications such as cellular phones, camcorders, and audio equipment-and requires prior consultation with Renesas sales before use in automotive systems, embedded controllers, or meters. While its −40°C to +85°C rating meets extended temperature requirements, formal qualification for automotive AEC-Q100 or functional safety standards is not documented for the R1EX25016ATA00A.
What package type and dimensions does the R1EX25016ATA00A use?
The R1EX25016ATA00A uses an 8-pin plastic TSSOP package designated PTSP0008JC-B (also labeled TTP-8DAV), with a body size of 3.0 mm × 4.4 mm and 0.65 mm lead pitch. This is confirmed in the Ordering Information table and Pin Arrangement diagram of the R1EX25016ATA00A datasheet (REJ03C0385-0100 Rev.1.00). It is lead-free and compatible with standard reflow soldering processes.
R1EX25016ATA00A#S0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K 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
R1EX25016ATA00A#S0 FAQ
1.How can I place an order for R1EX25016ATA00A#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1EX25016ATA00A#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 R1EX25016ATA00A#S0 reliable?
The price and inventory of R1EX25016ATA00A#S0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1EX25016ATA00A#S0 is usually 5 days.
3.What payment methods are accepted for R1EX25016ATA00A#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1EX25016ATA00A#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1EX25016ATA00A#S0?
R1EX25016ATA00A#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1EX25016ATA00A#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 R1EX25016ATA00A#S0?
For technical support, including R1EX25016ATA00A#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1EX25016ATA00A#S0 requirements.
6.How does Aetrix verify that R1EX25016ATA00A#S0 is sourced from the original manufacturer or authorized distributors?
All R1EX25016ATA00A#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 R1EX25016ATA00A#S0 meets industry standards.
7.What is the process for return or replacement of R1EX25016ATA00A#S0?
All R1EX25016ATA00A#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1EX25016ATA00A#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 R1EX25016ATA00A#S0 part is unused and in its original packaging.
Return procedure for R1EX25016ATA00A#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1EX25016ATA00A#S0 Tags
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M24C02-WMN6TP
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