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Microchip Technology 24LC024HT-E/MNY
- Part No.:
- 24LC024HT-E/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24LC024HT-E/MNY.pdf
- Description:
- IC EEPROM 2KBIT I2C 1MHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,050
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Product details
Overview
24LC024HT-E/MNY from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory, operating from 2.5V to 5.5V with 1 MHz clock support, 1 μA standby current, and hardware write protection for the upper half-array (80h–FFh). It is used in embedded systems for storing calibration data, configuration parameters, and device identity in industrial temperature range (−40°C to +125°C).
For engineers reviewing the 24LC024HT-E/MNY datasheet, 24LC024HT-E/MNY pinout, 24LC024HT-E/MNY application, or 24LC024HT-E/MNY equivalent, this page delivers verified electrical specs, validated I²C timing compliance (1 MHz), confirmed TDFN-8 package mapping, and real-world use cases in automotive sensor modules and industrial controllers.
Technical Context
The 24LC024HT-E/MNY implements a true two-wire I²C interface with Schmitt-trigger inputs on SDA/SCL for noise immunity and output slope control to suppress ground bounce. Its internal address counter supports current-address, random, and sequential read modes, while the 16-byte page buffer enables efficient burst writes.
Hardware write protection is controlled solely by the WP pin state-tied to VCC to lock addresses 80h–FFh, or to VSS for full array access. The device uses an internal high-voltage generator and auto-erase logic to complete self-timed byte/page writes within 5 ms, without external timing constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 2 Kbit (256 × 8-bit), single-block organization enabling contiguous addressing across multiple devices |
| VCC range | 2.5V–5.5V - compatible with 3.3V and 5V logic domains; not rated below 2.5V |
| Max clock frequency | 1 MHz - supports high-speed I²C mode, reducing transaction time vs. standard 100 kHz |
| Write endurance | 1 million erase/write cycles - specified at 25°C and VCC = 5.5V, ensuring long-term field reliability |
| Data retention | 200 years - guaranteed minimum retention under nominal operating conditions |
| Standby current | 1 μA max - enables ultra-low-power operation in battery-backed or energy-harvesting systems |
| Operating temperature | −40°C to +125°C (Automotive E grade) - qualified for under-hood and motor-control environments |
Pinout & Package
24LC024HT-E/MNY is supplied in an 8-pin 2×3 mm TDFN package (Moisture Sensitivity Level 1, Pb-free, RoHS compliant), with exposed pad for thermal enhancement and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Chip select inputs | Configure 3-bit slave address; enable up to eight devices on one I²C bus (base address 1010xxx) |
| VSS | Ground reference | Primary return path for all internal circuits; must be low-impedance connection to system GND |
| SDA | Serial data bidirectional line | Open-drain I²C data line requiring external pull-up; transmits/receives addresses and data |
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transactions; Schmitt-trigger input rejects noise |
| WP | Hardware write-protect input | Logic-high (VCC) enables protection of upper 128 bytes (80h–FFh); logic-low (VSS) disables protection |
| VCC | Power supply | 2.5V–5.5V supply input; internal voltage detector disables writes if VCC drops below ~1.5V |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C compatibility | Enables faster firmware updates and parameter loading vs. legacy 100 kHz EEPROMs, reducing host MCU wait time |
| Schmitt-trigger inputs | Provides ≥50 ns spike suppression and 0.05×VCC hysteresis on SDA/SCL, eliminating external filtering in noisy industrial environments |
| Page write buffer (16 bytes) | Reduces total I²C transaction count by up to 16× compared to byte-write mode, improving bus efficiency and system throughput |
| Half-array hardware write protect | Secures critical calibration or security keys stored in upper 128 bytes without software overhead or risk of accidental overwrite |
| 1 μA standby current | Supports always-on applications such as tamper-detection loggers or battery-powered sensors with multi-year runtime |
Applications
| Automotive Sensor Calibration | Industrial PLC Configuration Storage |
|---|---|
|
Use Scenario: Storing factory-calibrated offset/gain coefficients for pressure and temperature sensors in engine control units. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with guaranteed 200-year retention and automotive-grade temperature operation. Use Value: Eliminates need for recalibration during vehicle lifetime; WP pin locks calibration region against field update errors. |
Use Scenario: Holding user-defined I/O mapping, alarm thresholds, and communication settings in programmable logic controllers. IC Role / Device Role / Timing Role: I²C-configurable persistent memory accessed during boot and runtime via microcontroller firmware. Use Value: Enables field reconfiguration without firmware reflashing; 1 MHz interface reduces setup time during commissioning. |
| Medical Device Serial Numbering | Smart Meter Firmware Patch Storage |
|
Use Scenario: Recording unique device identifiers, manufacturing date, and regulatory certification codes in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant identity storage with hardware write protection for immutable fields. Use Value: Meets IEC 62304 traceability requirements; 1 million endurance supports full product lifecycle logging. |
Use Scenario: Caching firmware patch binaries prior to secure over-the-air (OTA) installation in utility smart meters. IC Role / Device Role / Timing Role: High-reliability temporary code storage with fast 1 MHz I²C load and robust noise immunity. Use Value: Prevents patch corruption during power interruption; Schmitt-trigger inputs ensure integrity in electrically noisy meter cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24LC024T-I/MNY | Same die, Industrial (I) grade (−40°C to +85°C); identical pinout, timing, and memory map | Lacks automotive qualification; unsuitable for under-hood or motor-control environments | Select when cost sensitivity outweighs extended temperature requirement and automotive qualification is unnecessary |
| AT24C02D-SSHM-T | 2 Kbit I²C EEPROM, 1.7V–5.5V VCC, 400 kHz max clock, SOIC-8 package; no 1 MHz mode | Lower speed limits throughput in high-bandwidth applications; SOIC-8 footprint incompatible with TDFN-8 PCB layout | Choose only if board space allows SOIC-8 and system clock rate remains ≤400 kHz |
Compared with 24LC024HT-E/MNY, the 24LC024T-I/MNY offers identical functionality at lower cost but lacks automotive qualification, while the AT24C02D-SSHM-T trades speed and package compatibility for broader voltage range and second-source availability.
Availability
24LC024HT-E/MNY is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLCs, medical diagnostics equipment, and smart metering systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24LC024HT-E/MNY 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 nonvolatile memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24LC024HT-E/MNY belongs to Microchip's automotive-qualified serial EEPROM product line, designed specifically for reliable, low-power, noise-immune data storage in harsh environments where functional safety and long-term data integrity are critical.
FAQ
What is the maximum I²C clock frequency supported by the 24LC024HT-E/MNY?
The 24LC024HT-E/MNY supports up to 1 MHz I²C clock frequency when VCC is between 2.5V and 5.5V. This is explicitly specified in the Device Selection Table and confirmed in AC Characteristics Table 1-2. Operation above 400 kHz requires proper bus capacitance control and pull-up resistor sizing per Microchip Application Note AN778. The 24LC024HT-E/MNY does not support 1 MHz below 2.5V - that capability is exclusive to the 24AA024H variant.
How does hardware write protection work on the 24LC024HT-E/MNY?
Hardware write protection on the 24LC024HT-E/MNY is controlled exclusively by the WP pin: when tied to VCC, addresses 80h–FFh (upper 128 bytes) are locked against write/erase commands; when tied to VSS, full-array access is enabled. The protection is active immediately upon power-up and cannot be overridden by software. The 24LC024HT-E/MNY does not support software write protection or partial-page locking - only the fixed half-array scheme defined in Section 2.4 and Figure 6-2.
What package type is used for the 24LC024HT-E/MNY?
The 24LC024HT-E/MNY is packaged in an 8-pin 2×3 mm TDFN (Thin Dual Flat No-lead) with exposed thermal pad, as confirmed by the Package Marking Information section (DS22102A-page 14) and the TDFN pin diagram on DS22102A-page 2. This differs from PDIP, SOIC, TSSOP, and MSOP variants - the "MNY" suffix specifically denotes the TDFN-8 package with wettable flanks and RoHS compliance. Board layout must accommodate 0.5 mm pitch and thermal pad soldering.
Can the 24LC024HT-E/MNY operate below 2.5V?
No, the 24LC024HT-E/MNY is not rated for operation below 2.5V. Its absolute minimum VCC is 2.5V, as stated in the Device Selection Table (DS22102A-page 1) and Electrical Characteristics (DS22102A-page 2). Attempting to power it below 2.5V may result in unreliable I²C communication, failed writes, or undefined behavior. For 1.7V operation, the functionally similar 24AA024H (not 24LC024H) must be selected - they are distinct parts with different voltage and speed specifications.
What is the endurance rating of the 24LC024HT-E/MNY, and under what conditions is it guaranteed?
The 24LC024HT-E/MNY is rated for 1 million erase/write cycles, as specified in Table 1-2 (Note 4) and confirmed in the Features list. This rating is characterized at 25°C and VCC = 5.5V using block-mode programming. Endurance decreases at elevated temperatures and lower VCC; Microchip's Total Endurance™ Model (available at microchip.com) provides application-specific estimates. The 1 million cycle figure is not tested per unit but ensured by process characterization and accelerated life testing.
24LC024HT-E/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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:
- 1 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 400 ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
24LC024HT-E/MNY FAQ
1.How can I place an order for 24LC024HT-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC024HT-E/MNY 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 24LC024HT-E/MNY reliable?
The price and inventory of 24LC024HT-E/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC024HT-E/MNY is usually 5 days.
3.What payment methods are accepted for 24LC024HT-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC024HT-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC024HT-E/MNY?
24LC024HT-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC024HT-E/MNY 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 24LC024HT-E/MNY?
For technical support, including 24LC024HT-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC024HT-E/MNY requirements.
6.How does Aetrix verify that 24LC024HT-E/MNY is sourced from the original manufacturer or authorized distributors?
All 24LC024HT-E/MNY 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 24LC024HT-E/MNY meets industry standards.
7.What is the process for return or replacement of 24LC024HT-E/MNY?
All 24LC024HT-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24LC024HT-E/MNY, 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 24LC024HT-E/MNY part is unused and in its original packaging.
Return procedure for 24LC024HT-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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