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Microchip Technology 24LC024HT-E/MS
- Part No.:
- 24LC024HT-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24LC024HT-E/MS.pdf
- Description:
- IC EEPROM 2KBIT I2C 1MHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,339
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Product details
Overview
24LC024HT-E/MS 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 and hardware write protection for addresses 0x80–0xFF. It features Schmitt-trigger inputs, slope-controlled outputs, and 16-byte page write buffer. Used in embedded systems for storing calibration data, configuration settings, and firmware identifiers.
For engineers reviewing the 24LC024HT-E/MS datasheet, 24LC024HT-E/MS pinout, 24LC024HT-E/MS application, or 24LC024HT-E/MS equivalent, this page delivers verified electrical specs, validated MSOP-8 pin mapping, confirmed industrial/automotive temperature operation (−40°C to +125°C), and real-world use cases in sensor modules and power management units.
Technical Context
The 24LC024HT-E/MS implements a two-wire I²C interface with slave addressing via A0–A2 pins, supporting up to eight devices on one bus. Its internal address counter enables sequential reads across the full 256-byte array with automatic rollover from 0xFF to 0x00.
Write operations include byte-write and 16-byte page-write modes with self-timed erase/write cycles (max 5 ms). Hardware write protection is controlled by the WP pin: tied to VCC disables writes to the upper half (0x80–0xFF); tied to VSS enables full-array access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 2 Kbit (256 × 8-bit) nonvolatile EEPROM storage |
| VCC range | 2.5V to 5.5V - supports standard 3.3V and 5V logic rails without level shifting |
| Max clock frequency | 1 MHz - enables high-speed configuration loading in time-critical boot sequences |
| Write endurance | 1 million erase/write cycles - suitable for field-updatable parameter storage |
| Data retention | 200 years at 25°C - ensures long-term reliability in unpowered storage applications |
| Operating temperature | −40°C to +125°C (Automotive grade E) - qualified for under-hood and industrial control environments |
| Standby current | 1 μA max - minimizes quiescent power in battery-backed systems |
Pinout & Package
24LC024HT-E/MS is housed in an 8-pin MSOP package (3.0 mm × 3.0 mm, 0.65 mm pitch), optimized for space-constrained PCB layouts in automotive and portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip select input | LSB of 3-bit device address; sets unique I²C slave address when multiple EEPROMs share bus |
| A1 | Chip select input | Middle bit of device address; enables up to eight parallel 24LC024HT-E/MS devices on one I²C bus |
| A2 | Chip select input | MSB of device address; hardwired to VSS/VCC to configure fixed slave address (e.g., 0x50–0x57) |
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance connection to system GND plane |
| SDA | Serial data bidirectional line | Open-drain I²C data line requiring external pull-up; transmits/receives addresses, commands, and data |
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transfers; Schmitt-trigger input suppresses noise-induced glitches |
| WP | Hardware write-protect input | Active-high enable: ties to VCC to lock 0x80–0xFF region; ties to VSS for full-array write access |
| VCC | Power supply | Primary supply rail (2.5V–5.5V); powers EEPROM core, interface logic, and charge pump for write operations |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte page write buffer | Reduces I²C transaction count by up to 16× vs. byte-write for block updates, improving bus efficiency |
| Schmitt-trigger SDA/SCL inputs | Provides 50 ns spike suppression and 0.05×VCC hysteresis - eliminates false triggering on noisy automotive buses |
| Output slope control | Prevents ground bounce during SDA transitions, avoiding signal integrity issues in mixed-signal PCBs |
| Half-array hardware write protect | Secures critical firmware parameters (e.g., MAC address, calibration offsets) from accidental overwrite |
| I²C bus compatibility | Fully compliant with standard-mode (100 kHz), fast-mode (400 kHz), and fast-mode plus (1 MHz) timing |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
|
Use Scenario: Storing factory-calibrated offset/gain coefficients for temperature, pressure, and humidity sensors in HVAC and process control systems. IC Role / Device Role / Timing Role: Nonvolatile configuration store accessed during power-on initialization; retains values across cold starts and brownouts. Use Value: Eliminates need for external calibration trimmers or host MCU flash programming, reducing BOM cost and field recalibration labor. |
Use Scenario: Holding seat position memory, mirror angle presets, and lighting configuration profiles in vehicle body control units. IC Role / Device Role / Timing Role: I²C slave EEPROM providing persistent user preference storage with automotive-grade temperature and reliability. Use Value: Enables instant recall of personalized settings after ignition cycle; withstands 125°C ambient under-dash environments. |
| Medical Device Configuration | Smart Energy Meter Firmware ID |
|
Use Scenario: Recording device serial number, manufacturing date, regulatory certification flags, and safety-critical operational limits in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter vault accessed only by certified bootloader during startup validation. Use Value: Supports FDA 21 CFR Part 11 compliance via write-protected memory regions preventing unauthorized firmware modification. |
Use Scenario: Storing firmware version, cryptographic key identifiers, and utility-specific tariff tables in ANSI C12.20-compliant electricity meters. IC Role / Device Role / Timing Role: High-endurance EEPROM used for infrequent but mission-critical firmware metadata updates over 20+ year service life. Use Value: Guarantees 200-year data retention and 1M write cycles - exceeds ANSI C12.20 lifetime requirements for metrology storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA024HT-E/MS | Wider VCC range (1.7V–5.5V); supports 100/400 kHz only; rated for Industrial temp (−40°C to +85°C) | Better suited for low-voltage battery-powered systems where 2.5V minimum is not guaranteed | Select when operating below 2.5V or requiring Industrial (not Automotive) qualification |
| AT24C02-MAHM-T | Same 2 Kbit capacity, MSOP-8 package, and I²C interface; 1.8V–5.5V VCC; 400 kHz max clock; 1M endurance | Lacks hardware write-protect pin; uses software write protection only | Choose when board layout lacks WP routing or software-controlled protection suffices |
Compared with 24LC024HT-E/MS, the 24AA024HT-E/MS offers lower-voltage operation but reduced speed and temperature rating, while the AT24C02-MAHM-T trades hardware write protection for broader vendor availability and simplified routing - making each viable depending on voltage, environmental, and security constraints.
Availability
24LC024HT-E/MS is available at Aetrix Electronics and suitable for automotive body controllers, industrial sensor nodes, medical diagnostics, and smart metering applications requiring stable component supply across extended product lifecycles.
Supply support for 24LC024HT-E/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 and manufacturing operations.
The 24LC024HT-E/MS belongs to Microchip's serial EEPROM product line, engineered specifically for automotive and industrial applications demanding extended temperature operation, high reliability, and robust I²C communication in electrically noisy environments.
FAQ
What is the maximum I²C clock frequency supported by the 24LC024HT-E/MS?
The 24LC024HT-E/MS supports up to 1 MHz I²C clock frequency when VCC is 2.5V or higher. This fast-mode plus capability allows faster configuration loading compared to standard 100 kHz or 400 kHz EEPROMs, reducing boot time in time-sensitive applications. The 24LC024HT-E/MS datasheet confirms this rating under Automotive temperature conditions (−40°C to +125°C).
How does the hardware write protection work on the 24LC024HT-E/MS?
The 24LC024HT-E/MS uses the WP pin to enable hardware write protection: when WP is tied to VCC, writes to memory addresses 0x80–0xFF are blocked while 0x00–0x7F remain writable. When WP is tied to VSS, full-array write access is enabled. This feature is implemented in silicon and requires no software intervention, making it ideal for safeguarding critical calibration data in the 24LC024HT-E/MS.
What package type is used for the 24LC024HT-E/MS?
The 24LC024HT-E/MS is packaged in an 8-pin MSOP (Mini Small Outline Package) with 3.0 mm × 3.0 mm body size and 0.65 mm lead pitch. This compact surface-mount package is specified in Microchip's DS22102A datasheet and is compatible with automated PCB assembly processes used in automotive and industrial electronics manufacturing.
Can multiple 24LC024HT-E/MS devices share the same I²C bus?
Yes, up to eight 24LC024HT-E/MS devices can operate on a single I²C bus using the A0, A1, and A2 address pins to configure unique 3-bit chip select codes. Each device responds only to its assigned slave address (0x50–0x57), enabling scalable memory expansion to 16 Kbits without additional address decoding logic in the 24LC024HT-E/MS system design.
What is the endurance and data retention specification for the 24LC024HT-E/MS?
The 24LC024HT-E/MS guarantees 1 million erase/write cycles and 200 years of data retention at 25°C. These specifications are validated per Microchip's characterization testing and apply across the full −40°C to +125°C automotive temperature range. The 24LC024HT-E/MS endurance rating supports frequent field updates in applications like smart meter firmware metadata storage.
24LC024HT-E/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:
- 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-MSOP
24LC024HT-E/MS FAQ
1.How can I place an order for 24LC024HT-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC024HT-E/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 24LC024HT-E/MS reliable?
The price and inventory of 24LC024HT-E/MS 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/MS is usually 5 days.
3.What payment methods are accepted for 24LC024HT-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC024HT-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC024HT-E/MS?
24LC024HT-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC024HT-E/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 24LC024HT-E/MS?
For technical support, including 24LC024HT-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC024HT-E/MS requirements.
6.How does Aetrix verify that 24LC024HT-E/MS is sourced from the original manufacturer or authorized distributors?
All 24LC024HT-E/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 24LC024HT-E/MS meets industry standards.
7.What is the process for return or replacement of 24LC024HT-E/MS?
All 24LC024HT-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24LC024HT-E/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 24LC024HT-E/MS part is unused and in its original packaging.
Return procedure for 24LC024HT-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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