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Microchip Technology 24VL024/MS
- Part No.:
- 24VL024/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24VL024/MS.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,247
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Product details
Overview
24VL024/MS from Microchip Technology Inc. is a 2 Kbit (256 × 8) I²C-compatible serial EEPROM designed for 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 clock (100 kHz below 1.8V), and features hardware write protection via the WP pin. It is used in battery-powered sensor nodes and portable medical devices for nonvolatile parameter storage.
For engineers reviewing the 24VL024/MS datasheet, 24VL024/MS pinout, 24VL024/MS application, or 24VL024/MS equivalent, this page delivers verified electrical specs, MSOP-8 package layout, I²C timing constraints, endurance (1M cycles), data retention (>200 years), and real-world use cases in space-constrained, low-power designs.
Technical Context
The 24VL024/MS implements a true 2-wire I²C slave interface with Schmitt-triggered SDA/SCL inputs, internal address pointer, and auto-incrementing sequential read capability. Its write-protection logic is hardwired to the WP pin-active high-and applies to the full 256-byte array (00h–FFh).
It uses on-chip charge-pump HV generation for EEPROM programming, supports page writes of up to 16 bytes within a single physical page boundary, and enforces bus timing per I²C Fast-mode spec at VCC ≥1.8V (THIGH ≥600 ns, TLOW ≥1300 ns). Acknowledge polling is supported to detect write completion without fixed delays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 2 Kbit (256 × 8-bit array), organized as single block for contiguous addressing |
| VCC operating range | 1.5V to 3.6V - enables direct interface with 1.8V/2.5V/3.3V microcontrollers and energy-harvesting systems |
| Max clock frequency | 400 kHz (≥1.8V); 100 kHz (<1.8V) - defines maximum I²C throughput and power trade-off |
| Write endurance | 1 million erase/write cycles per byte - ensures long-term reliability in firmware update or calibration logging |
| Data retention | Greater than 200 years at +25°C - guarantees persistent storage across product lifetime without refresh |
| Active/standby current | ≤400 μA active, ≤1 μA standby - minimizes quiescent drain in always-on IoT edge nodes |
| Interface protocol | I²C-compatible 2-wire bus with 7-bit slave address (1010xxxR/W) - interoperable with standard MCU I²C peripherals |
Pinout & Package
24VL024/MS is supplied in an 8-pin MSOP package (3.0 mm × 3.0 mm, 0.65 mm pitch), compatible with space-constrained PCB layouts and reflow assembly. Pin 1 is marked by laser dot; device is RoHS-compliant and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip select input | LSB of 3-bit hardware address; sets bit A0 of slave address (1010A2A1A0R/W); must be tied to VSS or VCC |
| A1 | Chip select input | Mid-bit of 3-bit hardware address; sets bit A1 of slave address; enables up to eight devices on one I²C bus |
| A2 | Chip select input | MSB of 3-bit hardware address; sets bit A2 of slave address; required for multi-device cascading |
| VSS | Ground reference | Primary return path for all internal logic and I/O; must be low-impedance connection to system GND plane |
| SDA | Serial data bidirectional line | Open-drain I²C data line requiring external pull-up (2 kΩ @ 400 kHz); changes only during SCL low |
| SCL | Serial clock input | Master-generated clock synchronizing all transfers; Schmitt-triggered for noise immunity on noisy boards |
| WP | Hardware write-protect input | Active-high enable: ties entire memory array (00h–FFh) to read-only mode when pulled to VCC |
| VCC | Power supply | Single 1.5–3.6V supply; internal voltage detector disables writes if VCC drops below ~1.0V |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation down to 1.5V | Enables direct integration with coin-cell–powered devices and ultra-low-power MCUs without level-shifting |
| Page write buffer (16 bytes) | Reduces I²C transaction count and host CPU overhead when updating configuration blocks or calibration tables |
| Schmitt-trigger inputs on SDA/SCL | Rejects >50 ns noise spikes and eliminates need for external RC filtering on industrial or motor-control PCBs |
| Self-timed write cycle (≤5 ms) | Removes requirement for precise software delay loops; supports reliable firmware updates even under variable VCC |
| Hardware write protection (WP pin) | Prevents accidental overwrites during power-up/down transients or firmware glitches-no software dependency |
Applications
| Smart Sensor Calibration | Portable Medical Device Settings |
|---|---|
|
Use Scenario: Storing factory-calibrated sensor offsets and gain coefficients in a wireless temperature/humidity node. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with infrequent writes and frequent reads; retains values across cold starts and battery swaps. Use Value: Eliminates recalibration after power loss; leverages 200-year data retention and 1.5V operation for coin-cell compatibility. |
Use Scenario: Saving user-selected therapy parameters (e.g., dose, duration, alarm thresholds) in a handheld insulin pump. IC Role / Device Role / Timing Role: Secure, low-power configuration memory accessed via MCU I²C during setup or recovery mode. Use Value: WP pin prevents corruption during brown-out events; 1 μA standby current extends battery life between charges. |
| Industrial PLC Configuration Backup | Energy Harvesting Node State Storage |
|
Use Scenario: Retaining I/O mapping, scaling factors, and alarm limits in a DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Fail-safe backup memory updated only during commissioning or maintenance; survives extended power outages. Use Value: Hardware write protection ensures settings remain intact during EMI-heavy factory environments and hot-swap events. |
Use Scenario: Logging last known sensor state and wake-up counter in a solar-powered environmental monitor. IC Role / Device Role / Timing Role: Low-energy EEPROM interfaced directly to an energy-harvesting PMIC output (1.8V nominal). Use Value: 400 μA active current allows full read/write within short energy bursts; 100 kHz mode supports operation at harvested VCC < 1.8V. |
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 | No WP pin; write protection implemented via software lock bits only; same 2 Kbit size and I²C interface | Lacks hardware-level write protection - unsuitable where firmware faults or voltage instability risk accidental writes | Select when cost sensitivity outweighs need for hardware write lock; verify MCU firmware handles lock-bit management robustly |
| BR24G02FJ-WE2 | Supports 1.7–5.5V VCC range; includes write-protect register (not pin-based); offers 1.8V minimum, not 1.5V | Cannot operate below 1.7V - excludes use with sub-1.8V energy harvesters or deep-sleep MCUs | Choose for broader supply flexibility and register-based protection; avoid when 1.5V operation is mandatory |
Compared with AT24C02D-SSHM-T and BR24G02FJ-WE2, the 24VL024/MS uniquely delivers guaranteed 1.5V operation *and* dedicated hardware write protection in a compact MSOP-8 package - critical for fail-safe, ultra-low-power embedded storage.
Availability
24VL024/MS is available at Aetrix Electronics and suitable for smart sensor calibration, portable medical device settings, and industrial PLC configuration backup requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for 24VL024/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 microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24VL024/MS belongs to Microchip's low-voltage serial EEPROM product line, engineered specifically for battery-powered, energy-constrained, and industrial-grade applications demanding robust nonvolatile storage at minimal supply voltage.
FAQ
What is the minimum supply voltage required for reliable operation of the 24VL024/MS?
The 24VL024/MS is fully specified to operate down to 1.5V across its full temperature range (–20°C to +85°C). Below 1.8V, maximum I²C clock frequency reduces to 100 kHz to maintain timing margins. Internal voltage detection disables write operations if VCC falls below approximately 1.0V, preventing corrupted writes - a key safety feature confirmed in the DS22130A datasheet for the 24VL024/MS.
Does the 24VL024/MS support page write, and what is the maximum page size?
Yes, the 24VL024/MS supports page write with a maximum buffer size of 16 bytes. Page writes must remain within a single physical page boundary - defined by addresses aligned to multiples of 16 (e.g., 00h–0Fh, 10h–1Fh). Crossing a boundary causes wraparound within the current page, as explicitly documented in Section 6.2 of the 24VL024/MS datasheet.
How does the WP pin function on the 24VL024/MS, and is it present on all packages?
The WP (Write-Protect) pin on the 24VL024/MS is an active-high hardware control that, when tied to VCC, locks the entire 256-byte memory array (00h–FFh) in read-only mode. It is present on all 8-pin packages including MSOP, SOIC, TSSOP, PDIP, and TDFN - but absent on the 6-pin SOT-23 variant (24VL025 only). This distinction is clearly stated in the Pin Function Table (DS22130A, page 5) for the 24VL024/MS.
What is the endurance rating and data retention specification for the 24VL024/MS?
The 24VL024/MS is rated for more than 1 million erase/write cycles per memory location and guarantees data retention exceeding 200 years at +25°C. These values are characterized and assured per Microchip's qualification standards - not estimated - and apply across the full VCC (1.5–3.6V) and temperature (–20°C to +85°C) operating ranges specified for the 24VL024/MS.
Can multiple 24VL024/MS devices share the same I²C bus, and how is addressing managed?
Yes, up to eight 24VL024/MS devices can be cascaded on a single I²C bus using the A0, A1, and A2 pins to configure unique 3-bit chip select codes (1010A2A1A0R/W). Each pin must be hard-wired to VSS or VCC - no floating connections - and the resulting 7-bit slave address determines device selection. This addressing scheme is validated in Section 5.0 of the 24VL024/MS datasheet and applies identically to the MSOP-packaged 24VL024/MS.
24VL024/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-MSOP
24VL024/MS FAQ
1.How can I place an order for 24VL024/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24VL024/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 24VL024/MS reliable?
The price and inventory of 24VL024/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24VL024/MS is usually 5 days.
3.What payment methods are accepted for 24VL024/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24VL024/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24VL024/MS?
24VL024/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24VL024/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 24VL024/MS?
For technical support, including 24VL024/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24VL024/MS requirements.
6.How does Aetrix verify that 24VL024/MS is sourced from the original manufacturer or authorized distributors?
All 24VL024/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 24VL024/MS meets industry standards.
7.What is the process for return or replacement of 24VL024/MS?
All 24VL024/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24VL024/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 24VL024/MS part is unused and in its original packaging.
Return procedure for 24VL024/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24VL024/MS Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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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
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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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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