My Inquiry
My Account
Renesas R1EX24064ASA00I#S0
- Part No.:
- R1EX24064ASA00I#S0
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- -
- Datasheet:
-
R1EX24064ASA00I#S0.pdf
- Description:
- EEPROM, 8KX8, SERIAL
- Quantity:
- Payment:
- Shipping:
Inventory:85,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R1EX24064ASA00I#S0 from Renesas Electronics is a 64-kbit (8,192 × 8-bit) two-wire serial I²C EEPROM with 1.8 V to 5.5 V single-supply operation, 400 kHz clock frequency, and 32-byte page write capability - used for nonvolatile parameter storage in embedded control modules, power management units, and sensor calibration systems.
For engineers reviewing the R1EX24064ASA00I#S0 datasheet, R1EX24064ASA00I#S0 pinout, R1EX24064ASA00I#S0 application, or R1EX24064ASA00I#S0 equivalent, key selection considerations include I²C bus compatibility at 400 kHz, −40°C to +85°C industrial temperature range, SOP-8 package footprint, and 100-year data retention at 25°C.
Technical Context
This device implements a standard I²C-compatible two-wire interface with open-drain SDA and active-high SCL, supporting byte and page write modes up to 32 bytes per cycle. It uses CMOS process with MNOS memory cells to achieve high endurance and low-power operation.
Internal address generation supports 13-bit addressing (0x0000–0x1FFF), with hardware device addressing via A0–A2 pins enabling up to eight devices on one bus. Write protection is controlled by the WP pin, which locks the upper 16 kbit (25%) of memory when asserted high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 64 kbit (8,192 × 8-bit) - sufficient for firmware configuration tables, calibration coefficients, or device identity data in resource-constrained systems. |
| Interface | I²C two-wire serial - compatible with standard microcontroller I²C peripherals without additional level-shifting or protocol translation. |
| Max clock frequency | 400 kHz - enables ~100 µs typical byte write latency and supports real-time parameter updates in industrial control loops. |
| Supply voltage | 1.8 V to 5.5 V - interoperable with 3.3 V and 5 V logic domains and tolerant of brown-out conditions down to 1.8 V. |
| Write endurance | 1,000,000 cycles @25°C - supports frequent logging or runtime configuration updates over product lifetime. |
| Data retention | 100 years @25°C - ensures long-term reliability for unattended equipment such as utility meters or remote sensors. |
| Operating temperature | −40°C to +85°C - qualified for industrial-grade deployment in motor drives, HVAC controllers, and factory automation hardware. |
| Package | SOP-8 (PRSP0008DF-B / FP-8DBV) - industry-standard 150-mil body with 1.27 mm pitch, compatible with automated PCB assembly. |
Pinout & Package
Package: 8-pin plastic SOP (PRSP0008DF-B), 150 mil width, 1.27 mm lead pitch, lead-free finish (Ni/Pd/Au plating).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Hardware device address inputs | Set 3-bit slave address (000–111); enable up to eight R1EX24064ASA00I#S0 devices on same I²C bus without software arbitration. |
| VSS | Ground reference | Common return path for all internal circuitry; must be connected directly to system ground plane for noise immunity. |
| VCC | Power supply input | Single 1.8–5.5 V supply powers logic and memory array; decoupling capacitor (0.1 µF) required within 5 mm. |
| WP | Write protect control | High = lock upper 16 kbit (addresses 0x1000–0x1FFF); prevents accidental firmware corruption during field updates. |
| SCL | Serial clock input | Positive-edge sampled clock; max 400 kHz; requires external pull-up resistor (typically 2.2–10 kΩ) to VCC. |
| SDA | Serial data I/O | Open-drain bidirectional line; requires external pull-up; supports multi-master arbitration and clock stretching. |
Key Features
| Feature | Design Value |
|---|---|
| 32-byte page write | Reduces average write time by 75% vs. byte writes - critical for fast boot-time configuration loading in PLCs and gateways. |
| Low standby current | 2 µA max - extends battery life in always-on IoT edge nodes powered by coin cells or energy harvesters. |
| Automatic write cycle termination | Internally timed 5 ms max write cycle - eliminates need for host polling delay; ACK polling supported for precise timing control. |
| Robust noise immunity | 50 ns noise suppression on SCL/SDA - prevents spurious writes from EMI in motor drive or power supply environments. |
| Power-on reset protection | Prevents unintended writes during VCC ramp-up/down - ensures data integrity during cold starts or brownouts. |
Applications
| Industrial Sensor Calibration | Power Supply Configuration Storage |
|---|---|
Use Scenario: Storing temperature-compensated gain/offset coefficients for analog sensor front-ends in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed once per power-on via I²C; no runtime writes after calibration. Use Value: Enables field-replaceable sensor modules with pre-loaded calibration data, eliminating factory recalibration labor. | Use Scenario: Holding output voltage/current setpoints, protection thresholds, and soft-start profiles in digitally controlled AC-DC power supplies. IC Role / Device Role / Timing Role: Configuration memory read at startup; write-enabled only during service-mode programming via isolated UART-to-I²C bridge. Use Value: Supports multi-model power supply families with shared hardware and differentiated firmware-defined behavior. |
| Embedded Controller Boot Parameters | Consumer Audio Device Settings |
Use Scenario: Retaining network MAC address, Wi-Fi credentials, and user-defined I/O mapping in industrial Ethernet I/O modules. IC Role / Device Role / Timing Role: I²C slave accessed early in boot sequence; writes occur only during provisioning or firmware update. Use Value: Eliminates need for external provisioning jigs; allows over-the-air credential updates with secure write-locking of sensitive fields. | Use Scenario: Saving volume levels, equalizer presets, and Bluetooth pairing information in portable speakers and headphones. IC Role / Device Role / Timing Role: Low-power I²C storage updated during user interaction; operates at 3.3 V from Li-ion battery rail. Use Value: Maintains user preferences across battery depletion cycles with guaranteed 100-year data retention at room temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C64D-SSHM-T | Same 64 kbit I²C EEPROM, but rated for 1 MHz max clock and offers 1.7–5.5 V operation; endurance 400k cycles @85°C. | Higher-speed interface supports faster boot sequences; slightly lower endurance at elevated temperature. | Preferred where system clock budget allows >400 kHz I²C and extended high-temp reliability is needed. |
| M95640-DRMN6TP/K | 64 kbit SPI EEPROM (not I²C); 20 MHz max clock; 1.8–5.5 V; 1M write cycles @25°C; SO8N package. | Requires SPI interface instead of I²C; incompatible pinout and protocol - not drop-in. | Select only when migrating from I²C to SPI architecture or when higher throughput justifies redesign. |
Compared with AT24C64D-SSHM-T, R1EX24064ASA00I#S0 offers superior data retention (100 vs. 40 years) and tighter industrial temp qualification; compared with M95640-DRMN6TP/K, it preserves I²C compatibility and simplifies firmware reuse but trades off peak throughput.
Availability
R1EX24064ASA00I#S0 is available at Aetrix Electronics and suitable for industrial control systems, power management units, and sensor calibration modules requiring stable component supply across multi-year production cycles.
Supply support for R1EX24064ASA00I#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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The R1EX24xxx series was designed specifically for reliable, low-power nonvolatile storage in cost-sensitive industrial and consumer electronics - emphasizing robustness under voltage variation and long-term data integrity.
FAQ
What is the maximum I²C clock frequency supported by R1EX24064ASA00I#S0?
R1EX24064ASA00I#S0 supports a maximum I²C clock frequency of 400 kHz, compliant with Fast-mode I²C specifications. This allows typical byte read access times under 100 µs and supports deterministic timing in real-time control applications. The device does not support standard-mode (100 kHz) only - it is fully Fast-mode capable across its full 1.8–5.5 V supply range.
Does R1EX24064ASA00I#S0 require external pull-up resistors on SDA and SCL lines?
Yes, R1EX24064ASA00I#S0 requires external pull-up resistors on both SDA and SCL lines due to its open-drain output structure. Recommended values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and desired rise time; 4.7 kΩ is typical for 100–200 pF total bus load. Pull-ups must connect to the same VCC rail used by the device.
How is write protection implemented on R1EX24064ASA00I#S0?
R1EX24064ASA00I#S0 implements hardware write protection via the WP pin: when WP is driven high (VIH ≥ 0.7×VCC), the upper 16 kbit (25%) of memory (addresses 0x1000–0x1FFF) is locked against write and page-write operations. Read access remains fully enabled regardless of WP state. This allows safe storage of immutable firmware parameters while permitting runtime updates to user-configurable sections.
What package type is used for R1EX24064ASA00I#S0?
R1EX24064ASA00I#S0 uses an 8-pin plastic SOP (Small Outline Package) with 150-mil body width and 1.27 mm lead pitch, designated PRSP0008DF-B (JEITA code FP-8DBV). It is lead-free with Ni/Pd/Au plating and weighs approximately 0.08 g. This package is compatible with standard reflow soldering profiles and automated pick-and-place equipment.
Can R1EX24064ASA00I#S0 operate reliably at 1.8 V supply?
Yes, R1EX24064ASA00I#S0 is fully specified for operation at 1.8 V, including all DC and AC characteristics: write current ≤3.0 mA, standby current ≤2.0 µA, and 400 kHz I²C communication. At 1.8 V, VOL is guaranteed ≤0.2 V with 1.5 mA sink current, ensuring noise margin with 1.8 V logic families. This makes R1EX24064ASA00I#S0 suitable for ultra-low-power battery-powered designs.
R1EX24064ASA00I#S0 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:
- -
R1EX24064ASA00I#S0 FAQ
1.How can I place an order for R1EX24064ASA00I#S0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1EX24064ASA00I#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 R1EX24064ASA00I#S0 reliable?
The price and inventory of R1EX24064ASA00I#S0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1EX24064ASA00I#S0 is usually 5 days.
3.What payment methods are accepted for R1EX24064ASA00I#S0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1EX24064ASA00I#S0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1EX24064ASA00I#S0?
R1EX24064ASA00I#S0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1EX24064ASA00I#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 R1EX24064ASA00I#S0?
For technical support, including R1EX24064ASA00I#S0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1EX24064ASA00I#S0 requirements.
6.How does Aetrix verify that R1EX24064ASA00I#S0 is sourced from the original manufacturer or authorized distributors?
All R1EX24064ASA00I#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 R1EX24064ASA00I#S0 meets industry standards.
7.What is the process for return or replacement of R1EX24064ASA00I#S0?
All R1EX24064ASA00I#S0 units undergo pre-shipment inspection (PSI). If there is an issue with R1EX24064ASA00I#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 R1EX24064ASA00I#S0 part is unused and in its original packaging.
Return procedure for R1EX24064ASA00I#S0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1EX24064ASA00I#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
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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…
