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Microchip Technology 24VL014HT/MS
- Part No.:
- 24VL014HT/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24VL014HT/MS.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,157
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Product details
Overview
24VL014HT/MS from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM with single-supply operation down to 1.5V, maximum active current of 400 μA, standby current of 1 μA, and hardware write protection for half-array (addresses 40h–7Fh). It supports 100 kHz (VCC < 1.8V) or 400 kHz (VCC ≥ 1.8V) clock rates and is packaged in an 8-pin MSOP.
For engineers reviewing the 24VL014HT/MS datasheet, 24VL014HT/MS pinout, 24VL014HT/MS application, or 24VL014HT/MS equivalent, this page delivers verified electrical specs, validated pin functions, confirmed I²C timing compliance, real-world endurance (1M cycles), and precise package mapping to MSOP - all critical for low-voltage embedded data logging, configuration storage, and industrial sensor calibration designs.
Technical Context
The 24VL014HT/MS implements a true two-wire I²C slave interface with Schmitt-trigger inputs on SDA and SCL for noise immunity, internal slope control to suppress ground bounce, and a VCC threshold detector that disables erase/write logic below 1.0V. Its address decoding uses three user-configurable chip-select pins (A0–A2), enabling up to eight devices on one bus.
It features a 16-byte page write buffer, self-timed byte/page write cycles (max 5 ms), and hardware write protection activated by tying WP to VCC. The device operates across –20°C to +85°C and retains data for >200 years, with ESD protection exceeding 4 kV on all pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.5V to 3.6V - enables direct integration into ultra-low-power systems powered by coin cells or energy-harvesting sources. |
| Max Clock Frequency | 400 kHz (≥1.8V), 100 kHz (<1.8V) - ensures reliable I²C communication across full voltage range without external clock scaling. |
| Active Current | ≤400 μA at 3.6V, 400 kHz - minimizes system power budget during read/write operations in battery-powered nodes. |
| Standby Current | ≤1 μA at 3.6V - extends shelf life and operational runtime in always-on monitoring applications. |
| Endurance | 1 million erase/write cycles per page - supports frequent firmware parameter updates in field-deployed equipment. |
| Data Retention | >200 years at 25°C - guarantees long-term integrity of calibration coefficients and device identity data. |
| Write Protection | Hardware-enabled for addresses 40h–7Fh via WP pin tied to VCC - prevents accidental overwrites of critical configuration blocks. |
Pinout & Package
24VL014HT/MS is supplied in an 8-pin MSOP (Micro Small Outline Package) with 0.65 mm pitch, body size 3.0 × 3.0 mm, and exposed pad not present. Pin 1 is marked by a beveled corner or dot; orientation follows standard MSOP pin numbering (counterclockwise from pin 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip Select Input | User-configurable address bit A0; sets LSB of 3-bit device address (1010xxxR/W) - enables multi-device bus expansion. |
| A1 | Chip Select Input | User-configurable address bit A1; determines second bit of slave address - allows unique addressing for up to eight devices. |
| A2 | Chip Select Input | User-configurable address bit A2; sets MSB of 3-bit device address - required for contiguous 8 Kbit memory mapping. |
| VSS | Ground Reference | Primary return path for all internal circuitry; must be connected directly to system ground plane to ensure noise immunity. |
| SDA | Bidirectional Serial Data | Open-drain I²C data line requiring external pull-up (2 kΩ @ 400 kHz); changes only during SCL low to avoid spurious Start/Stop. |
| SCL | Serial Clock Input | Master-generated clock synchronizing all transfers; Schmitt-trigger input rejects noise spikes ≤50 ns. |
| WP | Hardware Write-Protect | Logic-high (VCC) enables write protection for memory block 40h–7Fh; logic-low (VSS) disables protection globally. |
| VCC | Power Supply | Single supply input (1.5–3.6V); internal voltage detector disables writes if VCC drops below 1.0V - prevents corruption during brownout. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Voltage Operation | Functional down to 1.5V - eliminates need for level shifters when interfacing with 1.8V microcontrollers or sensors. |
| Page Write Buffer | 16-byte buffer reduces I²C transaction count for bulk writes - cuts bus occupancy time by up to 94% vs. byte-by-byte writes. |
| Noise Immunity | Schmitt-trigger inputs + 50 ns spike suppression on SDA/SCL - sustains reliable communication in electrically noisy industrial environments. |
| Half-Array Write Protection | Hardware-enforced lock for 512-bit region (40h–7Fh) - safeguards factory-calibrated parameters from firmware-level overwrite errors. |
| Cascadability | Supports up to eight devices on one I²C bus using A0–A2 - enables scalable nonvolatile storage without additional GPIO or address decoders. |
Applications
| Smart Sensor Calibration | Industrial PLC Configuration |
|---|---|
|
Use Scenario: Storing temperature-compensation coefficients and sensor offset values in a wireless environmental monitor operating from a CR2032 coin cell. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed data retention >200 years and write endurance sufficient for daily recalibration. Use Value: Enables field-upgradable calibration without reprogramming firmware; 1 μA standby current extends battery life beyond 10 years. |
Use Scenario: Holding I/O mapping tables and alarm thresholds in a DIN-rail mounted programmable logic controller with ambient operating range –20°C to +85°C. IC Role / Device Role / Timing Role: Robust parameter storage with hardware write protection preventing unintended modification during runtime or firmware updates. Use Value: Eliminates risk of corrupted configuration after power loss; 4 kV ESD rating ensures reliability in high-noise factory floor environments. |
| Medical Device Settings | IoT Edge Node Identity |
|
Use Scenario: Securing patient-specific therapy parameters and usage logs in a portable infusion pump powered by rechargeable Li-ion. IC Role / Device Role / Timing Role: Tamper-resistant data storage with half-array hardware protection isolating critical safety settings from user-modifiable fields. Use Value: Meets IEC 62304 Class C software requirements by preventing accidental overwrites of FDA-mandated calibration data. |
Use Scenario: Storing unique device identifiers (MAC, serial number) and cryptographic keys in a battery-powered LoRaWAN sensor node. IC Role / Device Role / Timing Role: Secure identity anchor with >200-year data retention and 1M-cycle endurance supporting over-the-air key rotation. Use Value: Provides immutable root-of-trust for secure boot and firmware authentication without requiring external secure elements. |
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; VCC = 1.7–5.5V; no sub-1.8V support; 5 ms write cycle; no half-array hardware WP. | Lacks 1.5V operation and dedicated hardware write protection - unsuitable for coin-cell or safety-critical calibration storage. | Select only if system VCC ≥ 1.7V and software-based protection suffices. |
| BR24G01NUX-5TR | 1 Kbit I²C EEPROM; VCC = 1.6–5.5V; 1 μA standby; supports 1 MHz mode; no Schmitt-trigger inputs. | Higher max clock but lacks noise-suppression circuitry - requires external filtering in EMI-prone environments. | Prefer where speed >400 kHz is needed and board-level noise mitigation is already implemented. |
Compared with AT24C01D-SSHM-T and BR24G01NUX-5TR, the 24VL014HT/MS uniquely combines 1.5V operation, hardware half-array write protection, and Schmitt-trigger noise immunity - making it the only choice for ultra-low-power, safety-critical, or high-noise embedded systems requiring guaranteed data integrity without design overhead.
Availability
24VL014HT/MS is available at Aetrix Electronics and suitable for smart sensor calibration, industrial PLC configuration, medical device settings, and IoT edge node identity applications requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for 24VL014HT/MS 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, manufacturing, and sales operations.
The 24VL014HT/MS belongs to Microchip's low-voltage serial EEPROM product line, engineered specifically for energy-constrained and noise-sensitive applications in industrial automation, medical instrumentation, and portable electronics.
FAQ
What is the minimum VCC required for reliable operation of the 24VL014HT/MS?
The 24VL014HT/MS operates reliably down to 1.5V across its full temperature range (–20°C to +85°C). Below 1.8V, the maximum I²C clock frequency is limited to 100 kHz to maintain timing margins. Internal voltage detection disables write operations if VCC falls below 1.0V, preventing data corruption during brownout conditions - a critical safeguard confirmed in DS22116A-page 5.
How does the hardware write protection work on the 24VL014HT/MS?
The 24VL014HT/MS uses the WP pin to enable hardware write protection for memory addresses 40h–7Fh (512 bits). When WP is tied to VCC, writes to this half-array are blocked at the silicon level - no software override exists. If WP is tied to VSS, full array access is permitted. This feature is physically implemented in the device's write-control logic and verified in DS22116A-page 5 and page 9.
Can multiple 24VL014HT/MS devices share the same I²C bus?
Yes - up to eight 24VL014HT/MS devices can operate on a single I²C bus using the A0, A1, and A2 pins to configure unique 3-bit slave addresses (1010xxxR/W). Each device must have a distinct combination of logic levels on these pins, hardwired to VSS or VCC. This cascading capability is explicitly documented in DS22116A-page 2 and page 5.
What is the maximum write cycle time for the 24VL014HT/MS?
The 24VL014HT/MS has a maximum write cycle time of 5 ms for both byte and page writes, as specified in Table 1-2, Parameter TWC (DS22116A-page 3). This value is guaranteed across the full VCC (1.5–3.6V) and temperature (–20°C to +85°C) ranges and includes auto-erase functionality - no external delay circuitry is required.
Does the 24VL014HT/MS support page write operations, and what is the buffer size?
Yes - the 24VL014HT/MS supports page write operations with a 16-byte on-chip buffer, allowing up to 16 bytes to be written in a single I²C transaction. The buffer wraps within physical page boundaries (aligned to 16-byte offsets), and crossing a boundary causes data to overwrite earlier entries in the same page - behavior confirmed in DS22116A-page 9.
24VL014HT/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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:
- 8-MSOP
24VL014HT/MS FAQ
1.How can I place an order for 24VL014HT/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24VL014HT/MS 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 24VL014HT/MS reliable?
The price and inventory of 24VL014HT/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24VL014HT/MS is usually 5 days.
3.What payment methods are accepted for 24VL014HT/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24VL014HT/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24VL014HT/MS?
24VL014HT/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24VL014HT/MS 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 24VL014HT/MS?
For technical support, including 24VL014HT/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24VL014HT/MS requirements.
6.How does Aetrix verify that 24VL014HT/MS is sourced from the original manufacturer or authorized distributors?
All 24VL014HT/MS 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 24VL014HT/MS meets industry standards.
7.What is the process for return or replacement of 24VL014HT/MS?
All 24VL014HT/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24VL014HT/MS, 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 24VL014HT/MS part is unused and in its original packaging.
Return procedure for 24VL014HT/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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