My Inquiry
My Account
Renesas R1EX25016ATA00I#S0
- Part No.:
- R1EX25016ATA00I#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R1EX25016ATA00I#S0.pdf
- Description:
- IC EEPROM 16KBIT SPI 5MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R1EX25016ATA00I#S0 from Renesas Electronics is a 16-kbit SPI serial EEPROM (2048 × 8-bit) in an 8-pin TSSOP package, operating from 1.8 V to 5.5 V with 3 MHz max clock at 1.8 V and 5 MHz at ≥2.5 V, featuring 32-byte page write, 5 ms write cycle time, and industrial −40°C to +85°C temperature range - used for firmware parameter storage in embedded controllers.
For engineers reviewing the R1EX25016ATA00I#S0 datasheet, R1EX25016ATA00I#S0 pinout, R1EX25016ATA00I#S0 application, or R1EX25016ATA00I#S0 equivalent, key selection criteria include SPI mode 0/3 compatibility, hardware write protection via W and HOLD pins, 100-year data retention at 25°C, and 1,000k endurance cycles - critical for infrequently updated configuration memory in automotive and industrial systems.
Technical Context
This device implements a standard SPI interface with dual-mode support (CPOL=0, CPHA=0 and CPOL=1, CPHA=1), enabling interoperability with diverse microcontrollers. Its MONOS nonvolatile memory cell architecture delivers high reliability without requiring external high-voltage programming circuitry.
The internal 32-byte page buffer enables burst writes within a single page boundary, reducing total programming time versus byte-wise writes. Protection logic integrates both software (BP0/BP1 bits in status register) and hardware (W pin + SRWD bit) mechanisms to prevent unintended writes during power transitions or noise events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 kbit (2048 × 8-bit) - supports full device configuration storage for mid-complexity MCU-based modules. |
| Supply voltage | 1.8 V to 5.5 V - enables direct interfacing with 1.8 V, 3.3 V, and 5 V logic domains without level shifters. |
| Max clock frequency | 5 MHz (at ≥2.5 V), 3 MHz (at 1.8 V) - determines maximum read/write throughput; 5 MHz yields ~400 kbit/s effective read rate. |
| Write cycle time | 5 ms per page (32 bytes) - defines worst-case latency for persistent parameter updates; independent of VCC within rated range. |
| Data retention | 100 years at 25°C, 10 years at 85°C - ensures long-term validity of calibration data or security keys across product lifetime. |
| Endurance | 1,000,000 write cycles at 25°C, 100,000 at 85°C - supports frequent field-updatable settings in telemetry or diagnostic subsystems. |
| Operating temperature | −40°C to +85°C - qualified for under-hood automotive ECUs and industrial PLC I/O modules. |
Pinout & Package
Package: 8-pin plastic TSSOP (PTSP0008JC-B / TTP-8DAV), 3.0 mm × 4.4 mm body, 0.65 mm pitch, lead-free, tape-and-reel (3,000 pcs/reel).
| 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 | Return path for all digital and internal memory operations; must be low-impedance connection. |
| S (Chip Select) | Device enable control | Active-low signal; falling edge initiates instruction decoding; high-Z output when deasserted. |
| C (Serial Clock) | SPI timing input | Drives internal state machine; rising edge latches D input, falling edge clocks Q output. |
| D (Data In) | Serial command/address/data input | Receives instruction opcodes (e.g., 0x02 for WRITE), 16-bit address, and up to 32 data bytes per page. |
| Q (Data Out) | Serial data output | Shifts out memory contents MSB-first on falling clock edge; tri-states when S or HOLD is high. |
| W (Write Protect) | Hardware lock control | Low level enables Hardware Protected Mode when SRWD=1, freezing BP0/BP1 and blocking WRSR execution. |
| HOLD | Communication pause | Halts ongoing SPI transfer without deselecting device; requires S=low and C=low for valid assertion. |
Key Features
| Feature | Design Value |
|---|---|
| 32-byte page write buffer | Reduces average write time by >90% vs. byte-wise programming - critical for fast factory calibration uploads. |
| Hardware + software write protection | Combines W pin and SRWD/BP0/BP1 bits to prevent corruption during brown-out, ESD, or firmware bugs. |
| MONOS memory technology | Enables 1.8 V operation and 100-year data retention without charge-pump circuitry - simplifies power design. |
| SPI mode 0 and 3 support | Ensures compatibility with ARM Cortex-M, Renesas RX, and legacy 8-bit MCUs without custom driver adaptation. |
| Industrial temperature grade | Validated operation from −40°C to +85°C - meets AEC-Q100 stress requirements for automotive body electronics. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Storing vehicle-specific configuration (e.g., door lock timing, mirror position presets) that persists across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed via SPI during MCU boot or reconfiguration events. Use Value: 100-year data retention ensures calibration remains valid over full vehicle lifetime without battery backup. |
Use Scenario: Holding module identification, calibration offsets, and channel enable/disable states in modular I/O racks. IC Role / Device Role / Timing Role: Configuration memory mapped to SPI peripheral; read at startup, written only during commissioning or firmware update. Use Value: Hardware write protection (W pin) prevents accidental overwrite during hot-swap or EMI events in noisy factory environments. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Saving user-defined test profiles and last-used measurement parameters between power cycles. IC Role / Device Role / Timing Role: Low-power SPI EEPROM interfaced to ultra-low-power MCU; accessed only during setup or save operations. Use Value: 2.0 μA standby current extends battery life in portable devices where firmware rarely changes. |
Use Scenario: Storing tariff tables, metering constants, and tamper-event logs requiring long-term integrity. IC Role / Device Role / Timing Role: Secure configuration store with dual protection (software BP bits + hardware W pin) against firmware corruption. Use Value: 1,000k endurance supports daily log writes for >2.7 years before wear-out - exceeding utility 10-year deployment requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25160B-SSHL-T (Microchip) | 16 kbit SPI EEPROM, same 8-pin TSSOP, but supports 20 MHz clock (5 V) and lacks HOLD pin. | No HOLD functionality limits use in systems requiring interruptible SPI transfers during real-time operation. | Select if higher speed is needed and HOLD is unused; verify absence of HOLD does not impact system-level timing robustness. |
| M95160-DFMN6TP/K (STMicroelectronics) | 16 kbit SPI EEPROM, 8-pin TSSOP, 20 MHz max (5 V), includes HOLD, but only guarantees 40-year data retention at 25°C. | Lower retention spec may require more frequent recalibration in long-lifetime infrastructure applications. | Prefer for cost-sensitive consumer designs; avoid where >50-year unattended operation is mandated (e.g., smart grid meters). |
Compared with AT25160B-SSHL-T and M95160-DFMN6TP/K, R1EX25016ATA00I#S0 provides superior long-term data integrity (100-year retention) and integrated HOLD functionality in a proven industrial-grade package - making it optimal for safety-critical or maintenance-free deployments.
Availability
R1EX25016ATA00I#S0 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O expansion, medical handheld diagnostics, and smart energy metering requiring stable component supply across multi-year production cycles.
Supply support for R1EX25016ATA00I#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, high-reliability embedded systems requiring SPI-compatible nonvolatile memory with extended data retention and robust write protection - designed specifically for automotive and industrial control applications.
FAQ
What is the maximum SPI clock frequency supported by R1EX25016ATA00I#S0?
R1EX25016ATA00I#S0 supports up to 5 MHz when VCC is 2.5 V to 5.5 V, and up to 3 MHz when VCC is 1.8 V to 5.5 V. These values are specified across the full operating temperature range (−40°C to +85°C) and reflect guaranteed timing margins - not typical or best-case performance. The device uses standard SPI modes 0 and 3, ensuring compatibility with most MCU SPI peripherals without protocol translation.
Does R1EX25016ATA00I#S0 include hardware write protection independent of software configuration?
Yes, R1EX25016ATA00I#S0 implements hardware write protection via the W (Write Protect) pin combined with the SRWD (Status Register Write Disable) bit. When SRWD = 1 and W is driven low, the device enters Hardware Protected Mode - freezing BP0/BP1 bits and rejecting all WRSR instructions. This protection remains active even if firmware attempts to modify protection settings, providing fail-safe defense against corruption during power transients or software faults.
How many write cycles can R1EX25016ATA00I#S0 endure at 85°C?
R1EX25016ATA00I#S0 is rated for a minimum of 100,000 write cycles at 85°C, as specified in the Memory Cell Characteristics table. This is one-tenth of its 25°C rating (1,000,000 cycles), reflecting accelerated wear at elevated temperature. The specification applies to the entire memory array and is validated per JEDEC standards - enabling reliable use in under-hood automotive or enclosed industrial enclosures where ambient temperatures approach the upper limit.
What is the function of the HOLD pin on R1EX25016ATA00I#S0?
The HOLD pin on R1EX25016ATA00I#S0 pauses ongoing SPI communication without deselecting the device or resetting internal state. When asserted (HOLD = low) while S = low and C = low, Q goes high-impedance and D/C become don't-care - allowing the host MCU to service interrupts or perform other tasks. Communication resumes on next valid clock edge after HOLD returns high. This avoids retransmission overhead in time-constrained systems.
Is R1EX25016ATA00I#S0 compatible with 1.8 V logic systems?
Yes, R1EX25016ATA00I#S0 operates fully at 1.8 V, including SPI communication (3 MHz max), read/write functionality, and all protection features. Input thresholds (VIH = VCC × 0.7, VIL = VCC × 0.3) and output drive strength (VOL ≤ 0.4 V at 1.5 mA) are specified down to 1.8 V. Its MONOS memory technology eliminates need for internal charge pumps - ensuring true single-supply 1.8 V operation without level shifters or auxiliary rails.
R1EX25016ATA00I#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:
- 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
R1EX25016ATA00I#S0 FAQ
1.How can I place an order for R1EX25016ATA00I#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1EX25016ATA00I#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 R1EX25016ATA00I#S0 reliable?
The price and inventory of R1EX25016ATA00I#S0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1EX25016ATA00I#S0 is usually 5 days.
3.What payment methods are accepted for R1EX25016ATA00I#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1EX25016ATA00I#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1EX25016ATA00I#S0?
R1EX25016ATA00I#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1EX25016ATA00I#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 R1EX25016ATA00I#S0?
For technical support, including R1EX25016ATA00I#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1EX25016ATA00I#S0 requirements.
6.How does Aetrix verify that R1EX25016ATA00I#S0 is sourced from the original manufacturer or authorized distributors?
All R1EX25016ATA00I#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 R1EX25016ATA00I#S0 meets industry standards.
7.What is the process for return or replacement of R1EX25016ATA00I#S0?
All R1EX25016ATA00I#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1EX25016ATA00I#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 R1EX25016ATA00I#S0 part is unused and in its original packaging.
Return procedure for R1EX25016ATA00I#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1EX25016ATA00I#S0 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…
