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Microchip Technology 24VL014T/OT
- Part No.:
- 24VL014T/OT
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- SOT-23-6
- Datasheet:
-
24VL014T/OT.pdf
- Description:
- IC EEPROM 1KBIT I2C SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,756
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Product details
Overview
24VL014T/OT from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM designed for ultra-low-voltage embedded systems. It operates from 1.5V to 3.6V, draws ≤400 μA active current and ≤1 μA standby current, supports up to 400 kHz I²C clock (100 kHz below 1.8V), and features hardware write protection via the WP pin. It is used in battery-powered sensor nodes for nonvolatile configuration storage.
For engineers reviewing the 24VL014T/OT datasheet, 24VL014T/OT pinout, 24VL014T/OT application, or 24VL014T/OT equivalent, key selection criteria include its 1.5V minimum VCC, Schmitt-triggered SDA/SCL inputs for noise immunity, page-write buffer (up to 16 bytes), 1M endurance cycles, and support for cascading up to eight devices on one bus.
Technical Context
The 24VL014T/OT implements a standard I²C slave interface with fixed 4-bit control code '1010', three user-configurable chip-select bits (A0–A2), and R/W bit-driven operation mode. Its internal architecture includes a 128-word address pointer, on-chip page buffer, self-timed erase/write logic, and voltage-threshold detector disabling programming below 1.0V.
It uses open-drain SDA/SCL with external pull-ups, enforces strict I²C timing (e.g., THD:STA ≥600 ns at VCC ≥1.8V), and provides acknowledge polling during write cycles. Write protection is hardware-controlled via WP pin (active-high), except in SOT-23 where WP is unconnected and protection is disabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.5V to 3.6V - enables direct interfacing with 1.8V and 3.3V microcontrollers without level shifters |
| Memory Size | 1 Kbit (128 × 8) - sufficient for storing calibration data, device IDs, or small firmware patches |
| I²C Clock Speed | Up to 400 kHz (100 kHz when VCC < 1.8V) - balances speed and low-voltage reliability |
| Active Current | ≤400 μA at VCC = 3.6V, SCL = 400 kHz - minimizes power draw during read/write in portable devices |
| Standby Current | ≤1 μA at VCC = 3.6V - critical for multi-year battery life in IoT endpoints |
| Write Endurance | 1 million erase/write cycles - supports frequent field updates in industrial logging applications |
| Data Retention | >200 years - ensures long-term integrity of stored configuration across product lifetime |
Pinout & Package
24VL014T/OT is supplied in a Pb-free, RoHS-compliant 6-lead SOT-23 package (JEDEC MO-178AA). Pin 1 is SCL; Pin 2 is VSS; Pin 3 is SDA; Pin 4 is A1; Pin 5 is A0; Pin 6 is VCC. The WP and A2 pins are not connected in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL (Pin 1) | Serial Clock Input | Synchronizes all I²C transactions; requires external pull-up; Schmitt-triggered for noise immunity |
| VSS (Pin 2) | Ground Reference | Return path for all internal circuitry; must be low-impedance to minimize ground bounce |
| SDA (Pin 3) | Bidirectional Serial Data | Open-drain I/O requiring external pull-up; changes only during SCL low to avoid false Start/Stop |
| A1 (Pin 4) | Chip Select Input | Configures slave address bit A1; tied to VSS or VCC to select among up to four SOT-23 devices on one bus |
| A0 (Pin 5) | Chip Select Input | Configures slave address bit A0; determines device address offset within 4-device SOT-23 group |
| VCC (Pin 6) | Power Supply | Accepts 1.5–3.6V; internal voltage detector disables writes below ~1.0V to prevent corruption |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply 1.5V operation | Eliminates need for voltage regulators in coin-cell or energy-harvesting systems |
| Schmitt-trigger inputs on SDA/SCL | Rejects bus noise spikes up to 50 ns, enabling robust communication in electrically noisy environments |
| Page write buffer (16 bytes) | Reduces I²C transaction count by 16× vs. byte writes, improving bus efficiency and reducing host CPU load |
| Hardware write protection (WP) | Physically blocks writes to entire array (00h–7Fh) when WP = VCC - prevents accidental firmware corruption |
| Cascadable up to 4 devices (SOT-23) | Expands total EEPROM capacity to 4 Kbit using standard I²C addressing without additional hardware |
Applications
| Smart Meter Calibration Storage | Wearable Health Sensor Configuration |
|---|---|
Use Scenario: Storing factory-calibrated ADC gain/offset coefficients and temperature compensation tables in utility-grade electricity meters. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed during power-up initialization and periodic recalibration routines. Use Value: Ensures measurement accuracy over 20+ years without battery-backed RAM; 1.5V operation allows direct connection to meter's low-power MCU rail. | Use Scenario: Holding user-specific biometric thresholds (e.g., heart rate zones, activity goals) and sensor fusion parameters in Bluetooth-enabled fitness bands. IC Role / Device Role / Timing Role: Persistent parameter store updated infrequently but read on every sensor sampling cycle. Use Value: ≤1 μA standby current extends coin-cell battery life beyond 18 months; I²C compatibility simplifies integration with Nordic nRF52-series SoCs. |
| Industrial PLC I/O Module Identity | Automotive Body Control Unit Settings |
Use Scenario: Storing unique module ID, firmware version, and channel mapping data in modular programmable logic controller backplanes. IC Role / Device Role / Timing Role: Slave EEPROM responding to master controller's I²C queries during hot-swap detection and module enumeration. Use Value: Cascading up to four 24VL014T/OT devices per bus enables full identity storage across 16-slot chassis with single I²C port. | Use Scenario: Saving user preferences (seat position, mirror angle, climate presets) and adaptive learning data in automotive door modules. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to 1.8V CAN transceiver MCU peripherals. Use Value: 1.5V minimum VCC ensures reliable operation during cold-crank battery dips to 1.6V; >200-year data retention meets OEM 15-year vehicle lifecycle requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C01D-SSHM-T | 1 Kbit I²C EEPROM; 1.7–5.5V VCC range; no sub-1.8V support; 5ms max write cycle | Lacks 1.5V operation - unsuitable for energy-harvesting or coin-cell designs | Select when system VCC ≥1.7V and higher ESD tolerance (6kV) is required |
| BR24G01NUX-5TR | 1 Kbit I²C EEPROM; 1.6–5.5V VCC; built-in write protect; 10ms max write cycle | Slower write time and higher minimum VCC reduce suitability for ultra-low-power wake-up sequences | Choose for automotive AEC-Q200 compliance and extended temperature range (−40°C to +105°C) |
Compared with AT24C01D-SSHM-T and BR24G01NUX-5TR, the 24VL014T/OT uniquely supports 1.5V operation and achieves lower standby current (1 μA vs. ≥5 μA), making it optimal for battery-constrained edge nodes where voltage headroom and quiescent power are limiting factors.
Availability
24VL014T/OT is available at Aetrix Electronics and suitable for smart metering, wearable health monitoring, industrial PLC modules, and automotive body control units requiring stable component supply across multi-year production cycles.
Supply support for 24VL014T/OT 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, serving industrial, automotive, communications, and consumer markets with high-reliability silicon and development tools.
The 24VL014T/OT belongs to Microchip's low-voltage serial EEPROM product line, engineered specifically for energy-efficient embedded systems operating near battery depletion thresholds or powered by harvested ambient energy.
FAQ
What is the minimum operating voltage for the 24VL014T/OT?
The 24VL014T/OT operates down to 1.5V, verified across the full −20°C to +85°C temperature range. Below 1.8V, maximum I²C clock frequency is limited to 100 kHz to ensure timing margin. Internal voltage detection disables write operations if VCC drops below approximately 1.0V, preventing data corruption during brown-out conditions.
Does the 24VL014T/OT support hardware write protection?
No - the 24VL014T/OT is packaged in a 6-lead SOT-23 variant where the WP pin is not bonded out. As stated in DS22129A-page 5, "Write Protection is not available on the SOT-23 package; for this package, write operations are always enabled." Hardware write protection is only available on 8-pin packages (PDIP, SOIC, TSSOP, MSOP, TDFN) where WP is physically present.
How many 24VL014T/OT devices can be connected on a single I²C bus?
Up to four 24VL014T/OT devices may share one I²C bus. Because the SOT-23 package lacks the A2 pin, only two chip-select bits (A0, A1) are available, yielding four unique slave addresses (1010_00, 1010_01, 1010_10, 1010_11). This enables 4 Kbit of contiguous address space without address conflicts.
What is the page write capability of the 24VL014T/OT?
The 24VL014T/OT supports page writes of up to 16 bytes within a single 16-byte physical page boundary. Attempting to write across a page boundary causes wraparound within that page. Page write reduces I²C overhead versus byte writes and completes in ≤5 ms, with acknowledge polling available to detect completion without fixed delays.
Is the 24VL014T/OT RoHS compliant and lead-free?
Yes - the 24VL014T/OT is Pb-free and RoHS compliant, as confirmed in the Device Selection Table on DS22129A-page 1. Its SOT-23 package carries the JEDEC matte tin (Sn) finish designation, and packaging markings follow Microchip's standard Pb-free labeling convention per DS22129A-page 14.
24VL014T/OT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 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:
- SOT-23-6
24VL014T/OT FAQ
1.How can I place an order for 24VL014T/OT through Aetrix?
Please submit a Request for Quotation (RFQ) for 24VL014T/OT 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 24VL014T/OT reliable?
The price and inventory of 24VL014T/OT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24VL014T/OT is usually 5 days.
3.What payment methods are accepted for 24VL014T/OT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24VL014T/OT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24VL014T/OT?
24VL014T/OT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24VL014T/OT 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 24VL014T/OT?
For technical support, including 24VL014T/OT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24VL014T/OT requirements.
6.How does Aetrix verify that 24VL014T/OT is sourced from the original manufacturer or authorized distributors?
All 24VL014T/OT 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 24VL014T/OT meets industry standards.
7.What is the process for return or replacement of 24VL014T/OT?
All 24VL014T/OT units undergo pre-shipment inspection (PSI). If there is an issue with 24VL014T/OT, 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 24VL014T/OT part is unused and in its original packaging.
Return procedure for 24VL014T/OT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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