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Microchip Technology 24LC024-E/MS
- Part No.:
- 24LC024-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24LC024-E/MS.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,709
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Product details
Overview
24LC024-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 hardware write-protection via the WP pin, 400 kHz clock support, and industrial/automotive temperature range (–40°C to +125°C). It delivers low-power operation (1 μA standby, 1 mA read), 16-byte page write buffer, and Schmitt-trigger inputs for noise immunity in embedded control and sensor calibration applications.
For engineers reviewing the 24LC024-E/MS datasheet, 24LC024-E/MS pinout, 24LC024-E/MS application, or 24LC024-E/MS equivalent, key selection criteria include its MSOP-8 package, hardware write-protect capability, automotive-grade temperature rating, and compatibility with multi-device I²C bus configurations up to eight devices.
Technical Context
The 24LC024-E/MS implements a two-wire I²C interface with open-drain SDA/SCL pins, internal address pointer auto-increment, and cascaded addressing using A0–A2 pins to support up to eight devices on one bus. Its architecture includes an on-chip 16-byte page write buffer and self-timed erase/write cycle with 5 ms maximum duration.
Hardware write protection is enabled by tying the WP pin to VCC, locking the entire 2 Kbit array against accidental writes. The device integrates Schmitt-trigger inputs and output slope control to suppress ground bounce and tolerate bus noise-critical for automotive and industrial environments where EMI resilience is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 2 Kbit (256 × 8-bit), enabling compact nonvolatile storage for configuration data or calibration parameters in space-constrained designs. |
| VCC range | 2.5V to 5.5V - compatible with standard 3.3V and 5V logic rails without level-shifting in automotive and industrial systems. |
| Max clock frequency | 400 kHz - supports fast I²C communication for time-sensitive firmware updates or sensor data logging. |
| Page write buffer | 16 bytes - reduces bus transaction overhead by allowing burst writes within a single page boundary (00h–0Fh, 10h–1Fh, etc.). |
| Endurance | 1 million erase/write cycles - ensures long-term reliability in applications requiring frequent parameter updates (e.g., energy metering, motor control). |
| Data retention | 200 years at +25°C - guarantees persistent storage of critical system identifiers or security keys over product lifetime. |
| Temperature grade | Automotive (E): –40°C to +125°C - qualified for under-hood, powertrain, and ADAS subsystems per AEC-Q100 stress requirements. |
| Write-protect | Hardware-enabled via dedicated WP pin - provides deterministic, glitch-immune protection against firmware corruption during power transients. |
Pinout & Package
24LC024-E/MS is packaged in an 8-pin MSOP (Mini Small Outline Package) with 3.0 mm × 3.0 mm body and 0.65 mm pitch, optimized for high-density PCB layouts in automotive modules and portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address input | LSB of 3-bit slave address; sets device ID when multiple EEPROMs share I²C bus (e.g., A0=VSS, A1=VCC, A2=VSS → address 0x50). |
| A1 | Address input | Middle bit of slave address; enables up to eight unique addresses (0x50–0x57) for daisy-chained configuration. |
| A2 | Address input | MSB of slave address; required for full 3-bit addressing; internally connected in MSOP package (unlike SOT-23). |
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance to ensure stable I²C signaling and noise immunity. |
| SDA | Serial data I/O | Bidirectional open-drain line; requires external pull-up (2 kΩ for 400 kHz); carries address, command, and data bits per I²C protocol. |
| SCL | Serial clock input | Master-generated clock synchronizing all data transfers; Schmitt-trigger input rejects noise spikes on clock line. |
| WP | Write-protect control | Active-high hardware lock: tied to VCC → full array protected; tied to VSS → normal write access permitted. |
| VCC | Power supply | 2.5V–5.5V input powering EEPROM core and interface logic; internal voltage detector disables writes below ~1.5V to prevent partial writes. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write-protection | WP pin enables deterministic, power-fail-safe locking of EEPROM contents-eliminates need for software-based protection schemes vulnerable to reset glitches. |
| 16-byte page write buffer | Reduces I²C transaction count by up to 16× versus byte-write mode, improving bus efficiency and minimizing master CPU overhead in firmware update routines. |
| Schmitt-trigger inputs | Provides 50 mV hysteresis on SDA/SCL, rejecting sub-50 ns noise spikes and ensuring robust operation in electrically noisy automotive harness environments. |
| Auto-increment address pointer | Enables seamless sequential reads across full 256-byte memory space without re-sending address bytes-ideal for boot-time configuration loading. |
| 100 kHz / 400 kHz dual-speed support | Backward compatibility with legacy 100 kHz controllers while enabling faster programming in new designs-no hardware redesign needed for speed upgrades. |
| ESD protection >4 kV | Meets IEC 61000-4-2 Level 3 requirements, reducing risk of field failures during handling or in-circuit ESD events in industrial control panels. |
Applications
| Automotive Body Control Module | Industrial Sensor Calibration |
|---|---|
Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in vehicle door modules. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with hardware write-protect to prevent corruption during battery disconnect/reconnect events. Use Value: Ensures user preferences persist across 15+ year vehicle lifecycle without recalibration, leveraging 200-year data retention and automotive-grade temperature operation. |
Use Scenario: Holding factory-calibrated offset/gain coefficients for pressure and temperature sensors in process automation transmitters. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter storage accessed only during initial commissioning or maintenance mode. Use Value: WP pin prevents accidental overwrites during field servicing, while 1M endurance supports repeated recalibration over 10+ years of operation. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Recording dose history, alarm logs, and safety-critical runtime parameters in Class II medical devices. IC Role / Device Role / Timing Role: Reliable event logging with guaranteed write completion detection via ACK polling, even during brown-out conditions. Use Value: 5 ms max write cycle and internal voltage monitoring ensure no partial writes occur-meeting IEC 62304 traceability and data integrity requirements. |
Use Scenario: Storing tariff schedules, demand-response settings, and firmware update flags in ANSI C12.20-compliant meters. IC Role / Device Role / Timing Role: Low-power nonvolatile memory supporting <1 μA standby current to extend battery backup life beyond 10 years. Use Value: Enables extended meter deployment in remote locations with infrequent maintenance, validated for operation at +125°C near transformer heat sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA024-I/MS | Wider VCC range (1.7V–5.5V) but industrial temp only (–40°C to +85°C); no automotive qualification. | Suitable for battery-powered portable equipment (e.g., handheld test gear) where low-voltage operation below 2.5V is required. | Select 24AA024-I/MS only if 1.7V operation is mandatory and automotive temperature range is not needed. |
| AT24C02C-SSHM-T | Same 2 Kbit capacity and MSOP-8 package; operates from 1.7V–5.5V; lacks dedicated WP pin (write-protect implemented via software address lock). | Preferred for cost-sensitive consumer electronics where hardware write-protect is not required and 1.7V startup is beneficial. | Choose AT24C02C-SSHM-T when design prioritizes lowest BOM cost and software-controlled protection suffices. |
Compared with 24AA024-I/MS, the 24LC024-E/MS adds automotive temperature qualification and hardware write-protect-critical for safety-critical systems-while AT24C02C-SSHM-T trades WP functionality for broader voltage range and lower unit cost in non-automotive applications.
Availability
24LC024-E/MS is available at Aetrix Electronics and suitable for automotive body control, industrial sensor calibration, medical infusion pumps, and smart energy metering requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24LC024-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 microcontrollers, analog components, and memory solutions, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The 24LC024-E/MS belongs to Microchip's automotive-qualified serial EEPROM family, designed specifically for reliable nonvolatile data storage in harsh environments where voltage transients, temperature extremes, and long-term data integrity are mission-critical.
FAQ
What is the maximum I²C clock frequency supported by the 24LC024-E/MS?
The 24LC024-E/MS supports up to 400 kHz I²C clock frequency when VCC ≥ 2.5V. At lower voltages (not applicable here, as minimum VCC is 2.5V), it defaults to 100 kHz. This allows high-speed parameter updates in automotive ECUs while maintaining timing compliance per I²C specification.
Does the 24LC024-E/MS have hardware write-protection, and how is it implemented?
Yes, the 24LC024-E/MS includes a dedicated WP (Write-Protect) pin. When tied to VCC, it permanently disables all write operations to the entire 2 Kbit memory array. This hardware-level lock prevents accidental or malicious overwrites during power cycling or firmware faults-critical for automotive safety systems.
What package type is used for the 24LC024-E/MS, and what are its key mechanical dimensions?
The 24LC024-E/MS uses an 8-pin MSOP (Mini Small Outline Package) with 3.0 mm × 3.0 mm body size, 0.65 mm lead pitch, and exposed pad option. Its compact footprint supports high-density routing in automotive ADAS modules and portable medical devices where board space is constrained.
How many devices can be connected on the same I²C bus using the 24LC024-E/MS?
Up to eight 24LC024-E/MS devices can be cascaded on a single I²C bus using the three hardware address pins (A0, A1, A2). Each device is assigned a unique 7-bit slave address (0x50–0x57), enabling scalable memory expansion to 16 Kbits without additional address decoding logic.
What is the endurance and data retention specification for the 24LC024-E/MS?
The 24LC024-E/MS guarantees 1 million erase/write cycles and 200 years of data retention at +25°C. These specifications are validated per JEDEC standards and ensure long-term reliability in applications such as energy meter firmware storage and automotive calibration data archiving.
24LC024-E/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:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
24LC024-E/MS FAQ
1.How can I place an order for 24LC024-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC024-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 24LC024-E/MS reliable?
The price and inventory of 24LC024-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 24LC024-E/MS is usually 5 days.
3.What payment methods are accepted for 24LC024-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC024-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC024-E/MS?
24LC024-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC024-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 24LC024-E/MS?
For technical support, including 24LC024-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC024-E/MS requirements.
6.How does Aetrix verify that 24LC024-E/MS is sourced from the original manufacturer or authorized distributors?
All 24LC024-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 24LC024-E/MS meets industry standards.
7.What is the process for return or replacement of 24LC024-E/MS?
All 24LC024-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24LC024-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 24LC024-E/MS part is unused and in its original packaging.
Return procedure for 24LC024-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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