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Microchip Technology 24VL025T/SN
- Part No.:
- 24VL025T/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24VL025T/SN.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,334
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Product details
Overview
24VL025T/SN from Microchip Technology Inc. is a 2 Kbit (256 × 8) I²C-compatible serial EEPROM optimized for ultra-low-voltage operation down to 1.5 V, with maximum active current of 400 μA and standby current of 1 μA. It supports 100 kHz/400 kHz I²C bus speeds, features Schmitt-trigger inputs for noise immunity, and includes a 16-byte page write buffer. It serves as nonvolatile configuration storage in battery-powered sensor nodes and portable medical devices.
For engineers reviewing the 24VL025T/SN datasheet, 24VL025T/SN pinout, 24VL025T/SN application, or 24VL025T/SN equivalent, key selection criteria include its 1.5–3.6 V supply range, SOT-23-6 package footprint, absence of WP pin, and compatibility with I²C master controllers requiring low-power, high-reliability data retention.
Technical Context
The 24VL025T/SN implements a standard I²C slave interface with fixed 7-bit address prefix '1010', where A0 and A1 pins configure device addressing-A2 is unconnected in the SOT-23 package. Its internal architecture includes a self-timed write cycle (≤5 ms), on-chip address pointer for sequential reads, and EEPROM array with >1 million erase/write cycles and >200 years data retention.
It uses Schmitt-trigger inputs on SDA and SCL with ≥50 ns spike suppression and hysteresis of 0.05×VCC, enabling robust operation on noisy PCBs. The device lacks hardware write protection (WP pin not internally connected), distinguishing it from the 24VL024 variant, and supports cascading up to four units on one bus due to missing A2 pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit array), sufficient for firmware calibration tables or device ID storage |
| Supply Voltage Range | 1.5 V to 3.6 V - enables direct connection to single-cell Li-ion or coin-cell power rails |
| I²C Clock Frequency | Up to 400 kHz (≥1.8 V); 100 kHz (1.5–1.8 V) - balances speed and noise margin in mixed-signal systems |
| Active Current | Max 400 μA at 3.6 V/400 kHz - minimizes impact on battery life during configuration reads |
| Standby Current | Max 1 μA at 3.6 V - critical for always-on IoT edge sensors with multi-year battery targets |
| Write Endurance | >1 million cycles per memory location - supports frequent logging or parameter updates |
| Data Retention | >200 years at 25°C - ensures long-term reliability without refresh in sealed industrial modules |
Pinout & Package
24VL025T/SN is housed in a 6-pin SOT-23 package (3.0 mm × 1.7 mm × 1.1 mm), optimized for space-constrained PCB layouts in wearables and compact modules. The WP pin is not internally connected - write protection must be implemented via software or external logic.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SCL) | Serial Clock Input | Asynchronous I²C clock input; requires external pull-up; Schmitt-triggered for noise rejection |
| 2 (VSS) | Ground Reference | Primary return path for all internal circuitry; must be low-impedance to minimize ground bounce |
| 3 (SDA) | Serial Data Bidirectional | Open-drain I²C data line; requires external pull-up; supports ACK/NACK signaling |
| 4 (A1) | Chip Select Bit 1 | Configures slave address bit A1; tied to VSS or VCC to select one of four possible addresses |
| 5 (A0) | Chip Select Bit 0 | Configures slave address bit A0; enables up to four 24VL025T/SN devices on same I²C bus |
| 6 (VCC) | Power Supply | 1.5–3.6 V input; internal voltage detector disables writes below ~1.0 V to prevent corruption |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Voltage Operation | Functional down to 1.5 V - eliminates need for voltage regulators in energy-harvesting designs |
| Page Write Buffer | 16-byte buffer enables burst writes with single Stop condition - reduces I²C transaction overhead by ~80% vs. byte writes |
| Schmitt-Trigger Inputs | Hysteresis ≥0.05×VCC on SDA/SCL - rejects >50 ns noise spikes without external filtering components |
| Self-Timed Write Cycle | Internal timing (≤5 ms) eliminates need for host MCU to poll status - simplifies firmware and improves determinism |
| ESD Robustness | >4 kV HBM - withstands handling and board-level ESD events without latch-up or parametric shift |
Applications
| Smart Wearable Sensors | Industrial Field Transmitters |
|---|---|
Use Scenario: Storing calibrated offset/gain coefficients and user-specific thresholds in wrist-worn health monitors. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed at boot and during runtime recalibration. Use Value: Enables field-updatable calibration without firmware reflash; 1 μA standby current extends battery life beyond 2 years. |
Use Scenario: Holding sensor linearization tables and commissioning parameters in 4–20 mA loop-powered temperature transmitters. IC Role / Device Role / Timing Role: Persistent memory for analog front-end trim values and device identity (MAC, serial). Use Value: Survives brownouts and hot-swap events; >200-year retention guarantees accuracy over equipment lifetime. |
| Medical Diagnostic Handhelds | Automotive Body Control Modules |
Use Scenario: Recording usage logs, error history, and regulatory compliance data in portable ultrasound probes. IC Role / Device Role / Timing Role: Secure, tamper-resistant event logger with timestamped entries. Use Value: Meets IEC 62304 data integrity requirements; >1M endurance supports daily diagnostics over 10+ years. |
Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in entry-level BCMs. IC Role / Device Role / Timing Role: User preference storage accessed via vehicle CAN-to-I²C gateway. Use Value: Low 1.5 V operation allows direct connection to backup battery rail during ignition-off state. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C02D-SSHM-T | 2 Kbit I²C EEPROM; 1.7–5.5 V supply; includes WP pin; SOIC-8 package | Requires PCB redesign for 8-pin SOIC; WP enables hardware lockout of configuration registers | Choose when hardware write protection and wider VCC range are mandatory, and board space permits SOIC-8 |
| M95020-WMN6TP | 2 Kbit SPI EEPROM; 1.8–5.5 V; 10 MHz SPI interface; TSSOP-8 | Different serial protocol (SPI vs. I²C); no native multi-device addressing; higher speed but needs extra CS line | Prefer when system already uses SPI peripherals and I²C bus is congested; avoid if I²C topology or pin count is fixed |
Compared with AT24C02D-SSHM-T and M95020-WMN6TP, the 24VL025T/SN uniquely delivers sub-1.8 V operation and SOT-23-6 footprint while omitting WP-making it optimal for ultra-low-power, space-limited I²C nodes where software-controlled write enable suffices.
Availability
24VL025T/SN is available at Aetrix Electronics and suitable for battery-powered wearables, industrial field instruments, and portable medical diagnostics requiring stable component supply across extended product lifecycles.
Supply support for 24VL025T/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 microcontroller, analog, FPGA, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24VL024/24VL025 family was designed specifically for ultra-low-voltage, low-power embedded systems-targeting applications where energy efficiency, small footprint, and long-term data integrity are critical, such as portable and battery-operated devices.
FAQ
What is the minimum operating voltage for the 24VL025T/SN?
The 24VL025T/SN operates down to 1.5 V, enabling direct interface with single-cell lithium batteries and energy-harvesting sources. Below 1.8 V, I²C clock frequency is limited to 100 kHz to maintain timing margins. The internal voltage detector disables write operations below ~1.0 V to prevent data corruption, ensuring reliability across the full specified range.
Does the 24VL025T/SN have a write-protect (WP) pin?
No-the 24VL025T/SN does not include functional hardware write protection. The WP pin is not internally connected, as confirmed in the datasheet's Pin Function Table and "Note" under Figure 2-1. Write protection must be implemented in firmware or via external logic; this distinguishes it from the 24VL024, which includes a functional WP pin.
How many 24VL025T/SN devices can share the same I²C bus?
Up to four 24VL025T/SN devices can be connected to a single I²C bus. Because the SOT-23 package lacks the A2 pin, only A0 and A1 are available for chip-select addressing-yielding 2² = 4 unique slave addresses (1010_00, 1010_01, 1010_10, 1010_11). This is explicitly stated in Section 5.0 and Table 2-1 of the DS22130A datasheet.
What is the maximum write cycle time for the 24VL025T/SN?
The maximum write cycle time for the 24VL025T/SN is 5 ms, covering both byte and page writes. This self-timed duration is internally managed and independent of host clock speed. During this period, the device does not acknowledge I²C commands-a behavior used in acknowledge polling to detect write completion without fixed delays.
Is the 24VL025T/SN RoHS compliant and lead-free?
Yes-the 24VL025T/SN is Pb-free and RoHS compliant, as stated in the "Features" section of DS22130A-page 1. The "T/SN" suffix denotes the 6-lead SOT-23 package with matte tin (Sn) plating per JEDEC standards, and marking information on page 14 confirms Pb-free designation on packaging and reels.
24VL025T/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
24VL025T/SN FAQ
1.How can I place an order for 24VL025T/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24VL025T/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 24VL025T/SN reliable?
The price and inventory of 24VL025T/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24VL025T/SN is usually 5 days.
3.What payment methods are accepted for 24VL025T/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24VL025T/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24VL025T/SN?
24VL025T/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24VL025T/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 24VL025T/SN?
For technical support, including 24VL025T/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24VL025T/SN requirements.
6.How does Aetrix verify that 24VL025T/SN is sourced from the original manufacturer or authorized distributors?
All 24VL025T/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 24VL025T/SN meets industry standards.
7.What is the process for return or replacement of 24VL025T/SN?
All 24VL025T/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24VL025T/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 24VL025T/SN part is unused and in its original packaging.
Return procedure for 24VL025T/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24VL025T/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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