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Renesas R1EX24016ASAS0I#S0
- Part No.:
- R1EX24016ASAS0I#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
R1EX24016ASAS0I#S0.pdf
- Description:
- IC EEPROM 16KBIT I2C 400KHZ 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,140
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Product details
Overview
R1EX24016ASAS0I from Renesas Electronics is a 16-kbit (2,048 × 8-bit) two-wire serial EEPROM with I²C interface, MONOS memory technology, and SOP-8 package. It operates from 1.8 V to 5.5 V, supports 400 kHz clock frequency, delivers 5 ms write cycle time, and guarantees 1,000k endurance cycles at 25°C - used for parameter storage in industrial controllers and embedded sensor nodes.
For engineers reviewing the R1EX24016ASAS0I datasheet, R1EX24016ASAS0I pinout, R1EX24016ASAS0I application, or R1EX24016ASAS0I equivalent, key selection considerations include its 16-byte page write capability, WP pin-controlled hardware write protection, −40°C to +85°C industrial temperature range, and lead-free SOP-8 packaging compatible with automated SMT assembly.
Technical Context
This device implements a two-wire I²C-compatible serial interface with fixed 1010 device code and user-configurable A0–A2 address pins for multi-device bus sharing. Its internal architecture includes a voltage detector, high-voltage generator, and serial-parallel converter enabling byte and page write operations.
Write protection is enforced via the WP pin: logic-high disables all writes (full 16k-bit lock), while logic-low enables full read/write access. The SDA line uses open-drain output requiring external pull-up; SCL timing adheres strictly to I²C Fast-mode specifications with tLOW ≥1200 ns and tHIGH ≥600 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 kbit (2,048 × 8-bit) - sufficient for firmware configuration tables or calibration data in compact embedded systems |
| Interface | I²C two-wire serial - enables simple, low-pin-count connection to microcontrollers without dedicated SPI peripherals |
| Max clock frequency | 400 kHz - supports Fast-mode I²C timing for efficient bulk reads/writes within system timing budgets |
| Write cycle time | 5 ms - defines minimum interval between write commands; impacts real-time logging latency |
| Endurance | 1,000k cycles @25°C - ensures reliable operation over 10+ years in daily-write applications like metering or event logging |
| Data retention | 100 years @25°C - maintains stored settings across product lifetime without refresh circuitry |
| Supply voltage | 1.8 V to 5.5 V - interoperable with 3.3 V and 5 V logic domains, simplifying power domain bridging |
| Operating temp | −40°C to +85°C - qualified for industrial control cabinets, automotive body electronics, and outdoor IoT nodes |
Pinout & Package
Package: 150-mil 8-pin plastic SOP (PRSP0008DF-B / FP-8DBV), lead-free, halogen-free, surface-mountable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device address input | Hard-wired or left floating to configure I²C slave address (a8–a10); NC in this variant per datasheet Pin Arrangement |
| VSS | Ground reference | System common return path; must be low-impedance to minimize noise coupling into memory array |
| VCC | Power supply | 1.8–5.5 V input; requires 0.1 μF ceramic bypass capacitor near pin to suppress supply noise during write cycles |
| WP | Write protect control | Active-high hardware lock: logic high disables all writes; internally pulled down - safe default if unconnected |
| SCL | Serial clock input | Positive-edge sampled for data-in, negative-edge for data-out; must meet tLOW ≥1200 ns and tHIGH ≥600 ns |
| SDA | Serial data I/O | Open-drain bidirectional line; requires external pull-up resistor sized per VOL, IOL, and bus capacitance |
Key Features
| Feature | Design Value |
|---|---|
| MONOS memory technology | Enables 1,000k write cycles and 100-year data retention without charge-pump wear-out mechanisms |
| 16-byte page write | Reduces average write time by up to 16× vs. byte-write mode when storing consecutive configuration parameters |
| Low-power standby | 2.0 μA max current at 5.5 V - extends battery life in always-on sensor nodes with infrequent EEPROM access |
| Hardware write protection | WP pin provides tamper-resistant locking of critical calibration or security keys without software overhead |
| Industrial temperature range | −40°C to +85°C operation - eliminates need for thermal derating in factory automation or energy metering designs |
Applications
| Industrial PLC Configuration Storage | Smart Sensor Calibration Data Retention |
|---|---|
Use Scenario: Storing I/O mapping, PID tuning parameters, and alarm thresholds in programmable logic controllers deployed in manufacturing lines. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding user-defined operational settings across power cycles. Use Value: Ensures deterministic startup behavior and eliminates manual reconfiguration after maintenance or firmware updates. | Use Scenario: Preserving factory-trimmed offset/gain coefficients and temperature compensation curves in MEMS-based environmental sensors. IC Role / Device Role / Timing Role: High-reliability parameter vault accessed only during sensor initialization or field recalibration. Use Value: Maintains measurement accuracy over 10+ years without drift-induced recalibration events. |
| Medical Device Usage Logs | Automotive Body Control Module Settings |
Use Scenario: Recording cumulative operating hours, error counters, and last-known fault codes in portable diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-evident event logger with WP-enabled write-lock after final audit entry. Use Value: Supports regulatory compliance (IEC 62304) by guaranteeing immutable runtime history without MCU intervention. | Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in automotive door modules. IC Role / Device Role / Timing Role: Low-voltage (1.8–5.5 V) persistent storage interfaced directly to 3.3 V microcontroller I²C peripheral. Use Value: Enables seamless user experience across vehicle power cycles while meeting AEC-Q100 ambient temperature requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16D-SSHM-T | Same 16k-bit capacity, I²C interface, and SOP-8 package; rated for 1M endurance cycles but specifies only 40 years data retention | Optimized for consumer-grade cost-sensitive designs; lacks MONOS reliability architecture for long-life industrial use | Select when BOM cost is primary constraint and 40-year retention suffices |
| M95160-DRMN3TP/K | 16k-bit SPI interface (not I²C); same voltage range and −40°C to +85°C rating; 1M endurance, 40-year retention | Requires SPI-capable host MCU; incompatible with I²C-only systems without protocol translation | Choose only if existing design uses SPI bus and layout cannot accommodate I²C routing |
Compared with AT24C16D-SSHM-T and M95160-DRMN3TP/K, R1EX24016ASAS0I offers superior long-term data integrity (100-year retention) and MONOS-based endurance stability, making it preferred for mission-critical industrial and medical applications where field replacement is impractical.
Availability
R1EX24016ASAS0I is available at Aetrix Electronics and suitable for industrial PLCs, smart sensors, medical diagnostics equipment, and automotive body control modules requiring stable component supply across extended product lifecycles.
Supply support for R1EX24016ASAS0I 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The R1EX24xxx series targets cost-sensitive, high-reliability embedded systems needing robust nonvolatile storage - designed specifically for applications where data integrity over decades outweighs raw speed or density.
FAQ
What is the maximum I²C clock frequency supported by R1EX24016ASAS0I?
R1EX24016ASAS0I supports a maximum I²C clock frequency of 400 kHz, compliant with Fast-mode I²C specifications. This allows efficient data transfer while maintaining timing margins for noise immunity in electrically noisy industrial environments. The device meets tLOW ≥1200 ns and tHIGH ≥600 ns requirements at this rate, ensuring reliable communication with standard I²C masters.
Does R1EX24016ASAS0I require external pull-up resistors on SDA and SCL lines?
Yes, R1EX24016ASAS0I requires external pull-up resistors on both SDA and SCL lines because the SDA pin uses an open-drain output structure. The resistor value must be selected based on bus capacitance, VOL (≤0.4 V at 3.0 mA), and system rise time requirements. Typical values range from 2.2 kΩ to 10 kΩ depending on bus length and speed.
How does the WP pin function on R1EX24016ASAS0I?
The WP pin on R1EX24016ASAS0I enables hardware write protection: when driven high, it locks the entire 16k-bit memory array against write operations, returning "NO ACK" after address transmission. When low or floating (due to internal VSS pull-down), full read/write access is granted. This provides secure, glitch-immune protection for critical calibration or security data.
What is the write endurance specification for R1EX24016ASAS0I at 85°C?
R1EX24016ASAS0I guarantees a minimum of 100,000 write cycles at 85°C, as specified in the Memory Cell Characteristics table. This reflects derating from the 1,000,000-cycle rating at 25°C due to accelerated oxide stress at elevated temperatures - sufficient for most industrial logging applications with moderate write frequency.
Is R1EX24016ASAS0I compatible with 1.8 V microcontrollers?
Yes, R1EX24016ASAS0I operates across a 1.8 V to 5.5 V supply range and supports I²C signaling at 1.8 V logic levels. Its VIH threshold is defined as VCC × 0.7 (≥1.26 V at 1.8 V), and VOL is ≤0.2 V at 1.5 mA, ensuring interoperability with 1.8 V MCUs without level-shifting circuitry.
R1EX24016ASAS0I#S0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOP
R1EX24016ASAS0I#S0 FAQ
1.How can I place an order for R1EX24016ASAS0I#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1EX24016ASAS0I#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 R1EX24016ASAS0I#S0 reliable?
The price and inventory of R1EX24016ASAS0I#S0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1EX24016ASAS0I#S0 is usually 5 days.
3.What payment methods are accepted for R1EX24016ASAS0I#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1EX24016ASAS0I#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1EX24016ASAS0I#S0?
R1EX24016ASAS0I#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1EX24016ASAS0I#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 R1EX24016ASAS0I#S0?
For technical support, including R1EX24016ASAS0I#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1EX24016ASAS0I#S0 requirements.
6.How does Aetrix verify that R1EX24016ASAS0I#S0 is sourced from the original manufacturer or authorized distributors?
All R1EX24016ASAS0I#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 R1EX24016ASAS0I#S0 meets industry standards.
7.What is the process for return or replacement of R1EX24016ASAS0I#S0?
All R1EX24016ASAS0I#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1EX24016ASAS0I#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 R1EX24016ASAS0I#S0 part is unused and in its original packaging.
Return procedure for R1EX24016ASAS0I#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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