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Microchip Technology 24VL025/SN
- Part No.:
- 24VL025/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24VL025/SN.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,595
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Product details
Overview
24VL025/SN from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM optimized for ultra-low-voltage operation down to 1.5V, organized as 256 × 8-bit memory with 16-byte page write buffer and hardware write protection disabled (WP pin not internally connected). It delivers ≤400 μA active current and ≤1 μA standby current, supporting 100 kHz (VCC < 1.8V) or 400 kHz (VCC ≥ 1.8V) clock rates in industrial temperature range (–20°C to +85°C). It is used for nonvolatile parameter storage in battery-powered sensor nodes and portable medical devices.
For engineers reviewing the 24VL025/SN datasheet, 24VL025/SN pinout, 24VL025/SN application, or 24VL025/SN equivalent, key selection criteria include its 1.5V minimum VCC, SOT-23 6-pin footprint, absence of internal WP connection, Schmitt-triggered SDA/SCL inputs for noise immunity, and guaranteed >1 million erase/write cycles with >200-year data retention.
Technical Context
The 24VL025/SN implements a standard I²C slave interface with fixed 4-bit control code '1010', where A0 and A1 pins serve as chip-select bits enabling up to four devices on one bus (A2 unconnected in SOT-23 package). Its internal address pointer auto-increments during sequential reads and supports current-address, random, and sequential read modes.
Write operations use self-timed internal erase-and-program cycles (max 5 ms), with acknowledge polling supported to detect completion. The device integrates Schmitt-trigger inputs and input filters (50 ns spike suppression) on SDA/SCL, plus output slope control to suppress ground bounce - all critical for reliable operation in noisy, low-power embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), sufficient for calibration data, device IDs, or configuration registers in compact systems |
| VCC Range | 1.5V to 3.6V - enables direct interface with single-cell Li-ion, coin-cell, or energy-harvesting power rails |
| Max Clock Frequency | 400 kHz at VCC ≥ 1.8V; 100 kHz at VCC < 1.8V - ensures timing compliance across full voltage range |
| Active Current | ≤400 μA at VCC = 3.6V, SCL = 400 kHz - minimizes battery drain during firmware updates or logging |
| Standby Current | ≤1 μA at VCC = 3.6V, all inputs high - supports multi-year operation in always-on IoT endpoints |
| Endurance | >1 million erase/write cycles per page - supports frequent field calibration or usage counter updates |
| Data Retention | >200 years at 25°C - guarantees long-term reliability without refresh in sealed industrial modules |
Pinout & Package
24VL025/SN is supplied in a Pb-free, RoHS-compliant 6-lead SOT-23 package (3.0 mm × 1.7 mm × 1.3 mm body, 0.95 mm pitch). Pin 1 is marked by laser dot; pin 1 corner is indicated by chamfered edge per JEDEC MO-178.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | Serial Clock Input | Asynchronous master-generated clock synchronizing all I²C transfers; Schmitt-triggered for noise margin |
| SDA | Bidirectional Serial Data | Open-drain I/O requiring external pull-up; changes only during SCL low except for Start/Stop signaling |
| A0 | Chip Select Bit 0 | Hardwired to VSS or VCC to configure 1 of 4 possible slave addresses (A2 not connected) |
| A1 | Chip Select Bit 1 | Used with A0 to select among four unique I²C addresses on shared bus (A2 omitted in SOT-23) |
| VSS | Ground Reference | Return path for all internal logic and I/O; must be low-impedance to support <1 μA standby leakage |
| VCC | Power Supply | Accepts 1.5–3.6V; internal voltage detector disables writes below ~1.0V to prevent corruption |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs on SDA/SCL | Provides 0.05×VCC hysteresis and 50 ns spike suppression - eliminates false triggering on EMI-prone PCB traces |
| Page write buffer (16 bytes) | Reduces I²C transaction overhead by 16× vs. byte writes - accelerates firmware parameter batch updates |
| Self-timed write cycle (≤5 ms) | Removes need for external timing control or busy-wait loops - simplifies host MCU firmware design |
| No internal WP connection | Eliminates external pull-up/down resistor and routing for WP - saves board space and BOM cost in SOT-23 designs |
| ESD protection >4 kV HBM | Enables safe handling and assembly in standard manufacturing environments without special ESD controls |
Applications
| Smart Sensor Calibration Storage | Portable Medical Device Settings |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients and user-adjusted thresholds in MEMS accelerometers or environmental sensors. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent parameters accessed at power-up and during runtime recalibration. Use Value: Enables accurate measurement over temperature and lifetime without external microcontroller intervention or battery-backed RAM. | Use Scenario: Saving patient-specific therapy settings, usage logs, and device serial numbers in handheld glucose meters or pulse oximeters. IC Role / Device Role / Timing Role: Secure, low-power parameter store interfaced via I²C to an ultra-low-power MCU during sleep/wake transitions. Use Value: Guarantees data integrity across thousands of battery cycles and meets medical device data retention requirements (>10 years). |
| Energy-Harvesting Node State Memory | Industrial Control Module Configuration |
Use Scenario: Retaining operational state (e.g., last valve position, fault history) in solar- or thermal-harvested wireless transmitters with intermittent power. IC Role / Device Role / Timing Role: Power-fail-safe memory that writes reliably down to 1.5V and retains data during multi-hour energy gaps. Use Value: Prevents loss of critical system state between harvest events - eliminates need for supercapacitor backup. | Use Scenario: Storing field-configurable I/O mapping, scaling factors, and alarm limits in DIN-rail mounted PLC I/O modules. IC Role / Device Role / Timing Role: Robust configuration EEPROM accessible via isolated I²C bus, tolerant of industrial bus noise and voltage transients. Use Value: Supports remote reconfiguration without firmware update; >200-year retention ensures no field replacement due to data decay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C02C-SSHM-T | 2 Kbit I²C EEPROM; 1.7–5.5V VCC range; no 1.5V operation; WP pin present and functional | Requires ≥1.7V supply; WP functionality adds hardware lock capability but increases layout complexity | Select when higher VCC margin or mandatory hardware write protection is required |
| BR24G02NUX-10 | 2 Kbit I²C EEPROM; 1.6–5.5V VCC; 6-lead USON package (2.0×2.0 mm); WP pin tied internally to VSS | Smaller footprint than SOT-23; lacks configurable WP but matches 24VL025/SN's no-WP behavior | Select for space-constrained designs needing identical WP-disabled operation in smaller package |
Compared with AT24C02C-SSHM-T and BR24G02NUX-10, the 24VL025/SN uniquely supports true 1.5V operation and uses industry-standard SOT-23 - enabling compatibility with legacy low-voltage designs while avoiding WP-related routing and component count overhead.
Availability
24VL025/SN is available at Aetrix Electronics and suitable for smart sensor calibration storage, portable medical device settings, and energy-harvesting node state memory requiring stable component supply across extended product lifecycles.
Supply support for 24VL025/SN 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
Microchip Technology Inc. is a leading provider of microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24VL025/SN belongs to Microchip's low-voltage serial EEPROM product line, designed specifically for battery-powered and energy-constrained applications demanding robust nonvolatile storage below 1.8V.
FAQ
What is the minimum operating voltage for the 24VL025/SN?
The 24VL025/SN operates down to 1.5V - verified across –20°C to +85°C - making it suitable for single-cell lithium or alkaline battery systems where other 2 Kbit EEPROMs require ≥1.7V. This specification is confirmed in DS22130A-page 1 Device Selection Table and Electrical Characteristics section.
Does the 24VL025/SN have a functional write-protect (WP) pin?
No - the WP pin is not internally connected on the 24VL025/SN, as explicitly stated in the "Note" under Figure 2-1 and Table 2-1 Pin Function Table. Hardware write protection is unavailable; software-level access control must be implemented externally if needed.
How many devices can be connected on the same I²C bus using the 24VL025/SN?
Up to four 24VL025/SN devices can share one I²C bus, because only A0 and A1 pins are bonded in the SOT-23 package (A2 is unconnected). Each device is assigned a unique address via combinations of A0/A1 tied to VSS or VCC, per Section 5.0 Device Addressing.
What is the maximum write cycle time for the 24VL025/SN?
The maximum write cycle time (byte or page) for the 24VL025/SN is 5 ms, as specified in Table 1-2 AC Characteristics Parameter No. 16 (TWC). This self-timed duration includes internal erase and programming; no external delay is required beyond issuing the Stop condition.
Is the 24VL025/SN compatible with standard I²C protocols?
Yes - the 24VL025/SN is fully I²C™-compatible, supporting standard Start/Stop conditions, 7-bit slave addressing with '1010' control code, and ACK/NACK handshaking. It operates at 100 kHz (VCC < 1.8V) and 400 kHz (VCC ≥ 1.8V), meeting I²C Specification Rev. 6 timing requirements per DS22130A-page 3.
24VL025/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 2Kbit
- Memory Organization:
- 256 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 1.5V ~ 3.6V
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24VL025/SN FAQ
1.How can I place an order for 24VL025/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24VL025/SN 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 24VL025/SN reliable?
The price and inventory of 24VL025/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24VL025/SN is usually 5 days.
3.What payment methods are accepted for 24VL025/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24VL025/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24VL025/SN?
24VL025/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24VL025/SN 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 24VL025/SN?
For technical support, including 24VL025/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24VL025/SN requirements.
6.How does Aetrix verify that 24VL025/SN is sourced from the original manufacturer or authorized distributors?
All 24VL025/SN 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 24VL025/SN meets industry standards.
7.What is the process for return or replacement of 24VL025/SN?
All 24VL025/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24VL025/SN, 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 24VL025/SN part is unused and in its original packaging.
Return procedure for 24VL025/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24VL025/SN Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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