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Microchip Technology 24VL024T/SN
- Part No.:
- 24VL024T/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24VL024T/SN.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:983
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Product details
Overview
24VL024T/SN 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 100 kHz/400 kHz clock rates, and features hardware write protection via the WP pin. It is used in battery-powered sensor nodes and portable medical devices for nonvolatile configuration storage.
For engineers reviewing the 24VL024T/SN datasheet, 24VL024T/SN pinout, 24VL024T/SN application, or 24VL024T/SN equivalent, this page delivers verified electrical specs, validated 8-pin SOIC package mapping, confirmed I²C timing compliance down to 1.5V, and real-world use cases in energy-constrained systems requiring >200-year data retention and >1 million endurance cycles.
Technical Context
The 24VL024T/SN implements a true 2-wire I²C slave interface with Schmitt-triggered SDA/SCL inputs and internal noise filtering (50 ns spike suppression), enabling reliable operation on noisy PCBs. Its address decoding uses three user-configurable chip-select pins (A0–A2), supporting up to eight devices on one bus with contiguous 16 Kbit expansion capability.
Internally, it integrates a 16-byte page write buffer, self-timed erase/write logic with 5 ms max write cycle time, and a hardware write-protect circuit tied to the WP pin - active only when WP = VCC - that locks the full 256-byte array (00h–FFh). The device includes VCC threshold detection (<1.0 V disable) and output slope control to suppress ground bounce.
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 |
| VCC range | 1.5V to 3.6V - enables direct integration with single-cell Li-ion (3.0–3.6V) or alkaline (1.5–3.0V) power rails |
| I²C clock rate | Up to 400 kHz (≥1.8V); 100 kHz (1.5–1.79V) - matches standard/fast-mode I²C controllers without external level shifting |
| Write endurance | 1 million erase/write cycles per byte - supports frequent logging or parameter updates in field-deployed equipment |
| Data retention | 200 years at +25°C - ensures long-term reliability in unattended infrastructure monitoring systems |
| Standby current | ≤1 μA at VCC = 3.6V - critical for multi-year battery life in IoT endpoint devices |
| Hardware WP | WP pin enables full-array write protection (00h–FFh) - prevents accidental overwrites during firmware updates or brown-out conditions |
Pinout & Package
24VL024T/SN is supplied in an 8-pin SOIC (150 mil) package, RoHS-compliant and Pb-free. Pin 1 is marked by laser dot; body dimensions are 4.9 mm × 3.9 mm × 1.75 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip select input | LSB of 3-bit slave address; hardwired to VSS or VCC to configure device address (1010xxx0) |
| A1 | Chip select input | Middle bit of slave address; enables up to eight devices on same I²C bus |
| A2 | Chip select input | MSB of slave address; determines unique I²C address within 1010xxx0 group |
| VSS | Ground reference | 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 read/write transfers; Schmitt-triggered for noise immunity |
| WP | Hardware write-protect input | Active-high protection: tie to VCC to lock entire memory array against writes |
| VCC | Power supply | Single 1.5–3.6V rail; internal voltage detector disables writes below ~1.0V to prevent corruption |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation | Functional down to 1.5V - eliminates need for voltage regulators in coin-cell or single-alkaline designs |
| Page write buffer | 16-byte burst write capability - reduces I²C transaction overhead and improves firmware update efficiency |
| Noise-immune interface | Schmitt-trigger inputs + 50 ns input filter - tolerates EMI in motor-driven or industrial environments |
| Self-timed write cycle | Internal auto-erase/write completes in ≤5 ms - no external timing control required; ACK polling supported |
| ESD robustness | >4,000V HBM - withstands handling and board-level electrostatic discharge without latch-up or parametric shift |
Applications
| Smart Energy Meters | Wearable Health Monitors |
|---|---|
|
Use Scenario: Storing tariff schedules, meter calibration coefficients, and tamper-event logs across power outages. IC Role / Device Role / Timing Role: Nonvolatile configuration and event-history storage with guaranteed data integrity during brownouts. Use Value: 200-year retention and 1M-cycle endurance ensure lifetime data reliability without periodic backup or refresh. |
Use Scenario: Saving patient-specific therapy parameters and sensor calibration offsets in compact, battery-powered patches. IC Role / Device Role / Timing Role: Low-power I²C slave storing persistent settings accessible during ultra-low-power sleep modes. Use Value: ≤1 μA standby current extends single-CR2032 battery life beyond 3 years in clinical-grade wearables. |
| Industrial PLC I/O Modules | Automotive Body Control Units |
|
Use Scenario: Holding module identification, channel scaling factors, and diagnostic fault history in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Robust configuration memory interfaced to microcontroller via isolated I²C bus. Use Value: Schmitt-triggered SDA/SCL and >4 kV ESD rating maintain communication integrity in electrically noisy factory floors. |
Use Scenario: Storing seat position presets, mirror calibration, and lighting profiles in 12V automotive subsystems. IC Role / Device Role / Timing Role: Voltage-flexible EEPROM operating directly from regulated 3.3V rail without additional LDO. Use Value: 1.5–3.6V VCC range accommodates automotive cold-crank (down to ~1.8V) and normal operation (3.3V). |
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 | No hardware WP pin; write protection implemented via software lock bits only | Lacks hardware-level write blocking - unsuitable where physical write-disable during firmware updates is required | Select if software-controlled protection suffices and SOIC-8 footprint compatibility is needed |
| BR24G02FJ-WE2 | Supports 1.7–5.5V VCC; higher 10 mA write current; no WP pin; different I²C address map (1010000x) | Higher VCC min (1.7V) excludes single-alkaline use; lacks hardware WP for safety-critical lockout | Choose for wider voltage margin above 1.7V and when BR24G-series ecosystem integration is preferred |
Compared with AT24C02C-SSHM-T and BR24G02FJ-WE2, the 24VL024T/SN uniquely combines sub-1.8V operation, hardware WP, and ≤1 μA standby current - making it optimal for ultra-low-power, safety-aware designs where voltage headroom and physical write disable are mandatory.
Availability
24VL024T/SN is available at Aetrix Electronics and suitable for smart meters, wearable health monitors, industrial I/O modules, automotive body control units, and portable test equipment requiring stable component supply across multi-year production cycles.
Supply support for 24VL024T/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 24VL024T/SN belongs to Microchip's low-voltage serial EEPROM product line, engineered specifically for energy-constrained applications demanding extended battery life, wide input voltage tolerance, and robust data integrity in harsh environments.
FAQ
What is the minimum VCC required for reliable operation of the 24VL024T/SN?
The 24VL024T/SN guarantees full functionality down to 1.5V. Below 1.8V, maximum I²C clock frequency is limited to 100 kHz; above 1.8V, it supports up to 400 kHz. Internal voltage detection disables write operations below ~1.0V to prevent data corruption - a safeguard confirmed in DS22130A-page 5.
Does the 24VL024T/SN support page write, and what is the buffer size?
Yes, the 24VL024T/SN supports page write with a 16-byte buffer. This allows up to 16 sequential bytes to be loaded into the on-chip buffer before initiating the internal write cycle. Page boundaries align to 16-byte intervals (00h–0Fh, 10h–1Fh, etc.), and crossing boundaries causes wraparound - a behavior explicitly documented in DS22130A-page 9.
Is hardware write protection available on the 24VL024T/SN, and how is it enabled?
Yes, hardware write protection is available exclusively on the 24VL024T/SN (not the 24VL025). It is enabled by tying the WP pin to VCC, which locks the entire 256-byte memory array (00h–FFh) against writes. When WP = VSS, full write access is permitted. This function is detailed in DS22130A-page 5 and page 9.
What package type is used for the 24VL024T/SN, and are pinouts compatible with other 24VL024 variants?
The 24VL024T/SN uses an 8-pin SOIC (150 mil) package with standard pinout: Pin 1 = A0, Pin 2 = A1, Pin 3 = A2, Pin 4 = VSS, Pin 5 = SDA, Pin 6 = SCL, Pin 7 = WP, Pin 8 = VCC. This matches all 8-pin 24VL024 variants (PDIP, TSSOP, MSOP, TDFN) per DS22130A-page 5 - ensuring drop-in replacement across packages.
How does the 24VL024T/SN handle I²C bus noise, and what specifications confirm this?
The 24VL024T/SN incorporates Schmitt-trigger inputs on SDA and SCL with 0.05×VCC hysteresis (DS22130A-table 1-1, D4) and a 50 ns input filter (DS22130A-table 1-2, T15). These features suppress EMI-induced glitches and eliminate false Start/Stop detection - validated under -20°C to +85°C ambient conditions.
24VL024T/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:
- Not 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
24VL024T/SN FAQ
1.How can I place an order for 24VL024T/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24VL024T/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 24VL024T/SN reliable?
The price and inventory of 24VL024T/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24VL024T/SN is usually 5 days.
3.What payment methods are accepted for 24VL024T/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24VL024T/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24VL024T/SN?
24VL024T/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24VL024T/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 24VL024T/SN?
For technical support, including 24VL024T/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24VL024T/SN requirements.
6.How does Aetrix verify that 24VL024T/SN is sourced from the original manufacturer or authorized distributors?
All 24VL024T/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 24VL024T/SN meets industry standards.
7.What is the process for return or replacement of 24VL024T/SN?
All 24VL024T/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24VL024T/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 24VL024T/SN part is unused and in its original packaging.
Return procedure for 24VL024T/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24VL024T/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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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24AA02UIDT-I/OT
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