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Microchip Technology 24LC024T-E/MC
- Part No.:
- 24LC024T-E/MC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
24LC024T-E/MC.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,238
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Product details
Overview
24LC024T-E/MC 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 (WP pin), 16-byte page write buffer, and 400 kHz clock support. It delivers 1 μA standby current, 1 mA read current, and >1 million erase/write cycles - used for configuration storage in industrial sensor nodes and embedded control modules.
For engineers reviewing the 24LC024T-E/MC datasheet, 24LC024T-E/MC pinout, 24LC024T-E/MC application, or 24LC024T-E/MC equivalent, key selection criteria include VCC range (2.5–5.5V), WP-enabled hardware protection, automotive-grade temperature operation (−40°C to +125°C), and compatibility with cascaded I²C bus topologies up to eight devices.
Technical Context
The 24LC024T-E/MC implements a two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal address pointer supports current-address, random, and sequential read modes, while the 16-byte page buffer enables efficient burst writes within physical page boundaries (0x00–0x0F, 0x10–0x1F, etc.).
Hardware write-protection is controlled via the dedicated WP pin: tied to VCC, it disables all array writes; tied to VSS, full write access is granted. The device uses an internal high-voltage generator and self-timed erase/write cycle with 5 ms maximum duration, eliminating external timing dependencies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), providing compact nonvolatile storage for calibration data, device IDs, or firmware flags. |
| VCC Range | 2.5V to 5.5V - compatible with 3.3V and 5V logic systems without level shifting. |
| Interface | I²C-compatible 2-wire serial bus with 100 kHz / 400 kHz clock support - integrates directly into standard microcontroller I²C peripherals. |
| Write Protection | Hardware WP pin enables system-level write lockout - prevents accidental overwrites during power-up/down or firmware updates. |
| Endurance & Retention | 1 million erase/write cycles and >200 years data retention - suitable for long-life industrial deployments. |
| Temperature Range | −40°C to +125°C (Automotive E-grade) - qualified for under-hood, motor control, and harsh-environment applications. |
| Package | 8-lead DFN (2 mm × 3 mm, 0.5 mm pitch) - space-constrained PCBs requiring low profile and thermal efficiency. |
Pinout & Package
24LC024T-E/MC is housed in an 8-lead DFN package (2 mm × 3 mm, 0.5 mm pitch) with exposed pad for thermal dissipation and mechanical stability. Pin numbering follows standard DFN orientation (pin 1 marked by laser dot).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip Select Input | LSB of 3-bit slave address; sets device address on I²C bus (0x50–0x57) when combined with A1/A2. |
| A1 | Chip Select Input | Middle bit of slave address; enables up to eight devices on same I²C bus with unique addressing. |
| A2 | Chip Select Input | MSB of slave address; required for multi-device cascading; internally connected in DFN package. |
| VSS | Ground Reference | Return path for all internal circuitry; must be low-impedance connection to system GND plane. |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up resistor (2 kΩ typical for 400 kHz operation). |
| SCL | Serial Clock Input | Master-generated clock signal; synchronizes all data transfers; Schmitt-trigger input rejects noise. |
| WP | Hardware Write-Protect | Active-high enable: tied to VCC locks entire memory array; tied to VSS enables full write capability. |
| VCC | Power Supply | 2.5V–5.5V supply input; includes internal voltage threshold detector disabling writes below ~1.5V. |
Key Features
| Feature | Design Value |
|---|---|
| Page Write Buffer | 16-byte buffer enables efficient burst writes without repeated start/stop overhead - reduces I²C transaction count by up to 16× vs byte-write. |
| Noise Immunity | Schmitt-trigger inputs + 50 ns input filter suppress bus noise - eliminates need for external RC filtering in electrically noisy environments. |
| Write Cycle Timing | Self-timed 5 ms max erase/write cycle - no external wait states or polling required beyond ACK polling protocol. |
| Cascadability | Three address pins (A0–A2) support up to eight devices on one I²C bus - scales memory capacity to 16 Kbit without additional controllers. |
| ESD Robustness | 4,000 V HBM ESD rating on all pins - enhances reliability in handling-sensitive manufacturing and field service scenarios. |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
|
Use Scenario: Storing factory-calibrated offset/gain coefficients and temperature compensation tables for analog sensor front-ends. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent trim values accessed at power-on reset. Use Value: Enables single-pass calibration during production and eliminates need for re-trimming in field - reduces test time and supports field firmware updates. |
Use Scenario: Retaining user preferences (seat position, mirror angle, lighting profiles) across ignition cycles in vehicle body control units. IC Role / Device Role / Timing Role: Low-power EEPROM interfacing with MCU over I²C during wake-up sequence. Use Value: 1 μA standby current extends battery life during vehicle sleep mode; WP pin prevents corruption during load-dump transients. |
| Medical Device Configuration | Smart Energy Metering |
|
Use Scenario: Securely storing regulatory-compliant device parameters (e.g., dose limits, alarm thresholds) in portable diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-resistant memory with hardware write-lock activated during normal operation. Use Value: WP pin ensures critical safety parameters cannot be overwritten by software faults or malicious commands - meets IEC 62304 requirements. |
Use Scenario: Logging tamper events, meter firmware version, and tariff schedule changes in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: High-endurance memory supporting frequent timestamped writes under utility-defined intervals. Use Value: 1 million write cycles guarantee >10 years of daily event logging at 300 entries/day - exceeds ANSI C12.19 lifetime requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA024T-I/MC | Wider VCC range (1.7–5.5V); Industrial temp only (−40°C to +85°C); identical pinout and functionality. | Lacks automotive qualification; unsuitable for under-hood or engine-control applications. | Select when operating below 2.5V (e.g., coin-cell-powered devices) and automotive temp grade is not required. |
| AT24C02D-SSHM-T | Same 2 Kbit size, I²C interface, and 16-byte page; different slave address map (0x50–0x57 vs 0x50–0x57); no WP pin. | Relies on software write protection only; lacks hardware lockout for critical configuration data. | Choose when board space allows SOIC-8 and hardware WP is not mandated by safety or security policy. |
Compared with 24LC024T-E/MC, the 24AA024T-I/MC offers broader voltage flexibility but sacrifices automotive qualification, while the AT24C02D-SSHM-T omits hardware write protection - making 24LC024T-E/MC the only option meeting both E-grade temperature and system-level hardware lockout requirements.
Availability
24LC024T-E/MC is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, and medical device configuration requiring stable component supply across extended product lifecycles.
Supply support for 24LC024T-E/MC 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, FPGA, and memory solutions, serving industrial, automotive, and consumer markets with high-reliability silicon and development tools.
The 24LC024T-E/MC belongs to Microchip's 24LCxx family of I²C EEPROMs, designed specifically for robust, low-power nonvolatile storage in automotive and industrial systems demanding extended temperature operation and hardware-level data integrity.
FAQ
What is the operating voltage range for the 24LC024T-E/MC?
The 24LC024T-E/MC operates from 2.5V to 5.5V. This range ensures compatibility with both 3.3V and 5V microcontroller I²C buses without level-shifting circuitry. Operation below 2.5V is not supported - unlike the 24AA024 variant, which starts at 1.7V. The internal voltage detector disables write operations if VCC drops below ~1.5V, preventing data corruption during brown-out conditions.
Does the 24LC024T-E/MC have hardware write protection?
Yes, the 24LC024T-E/MC includes a dedicated WP (Write-Protect) pin. When tied to VCC, the entire 2 Kbit memory array is locked against write or erase operations - a hardware-level safeguard independent of software state. This feature is confirmed in the datasheet's Pin Descriptions (Section 2.4) and Device Selection Table, and applies specifically to 24XX024 variants like the 24LC024T-E/MC.
What package type is used for the 24LC024T-E/MC?
The 24LC024T-E/MC uses an 8-lead DFN package (2 mm × 3 mm, 0.5 mm pitch) with exposed thermal pad. This is explicitly listed in the Package Types table and confirmed in the "Part Number Marking" section (DS21210N-page 13), where "24LC024" maps to "2P4" for DFN I-temp and "AP5" for DFN E-temp - matching the "E" suffix and "/MC" suffix denoting DFN packaging in Microchip's naming convention.
How many devices can be connected on the same I²C bus using the 24LC024T-E/MC?
Up to eight 24LC024T-E/MC devices can share a single I²C bus using the A0, A1, and A2 address pins to configure unique 3-bit chip select codes (0x50–0x57). This is documented in the Device Selection Table and Functional Description (Section 3.0), and applies identically across all packages including DFN. Each device retains its own 256-byte address space, enabling scalable memory expansion.
What is the maximum write cycle time for the 24LC024T-E/MC?
The maximum write cycle time for the 24LC024T-E/MC is 5 ms for both byte and page writes, as specified in Table 1-2 (Parameter TWC) and Section 6.0. This self-timed duration is fixed and independent of VCC or temperature - no external timing components or software delays are needed. Acknowledge polling (Section 7.0) is the recommended method to detect completion without fixed delay loops.
24LC024T-E/MC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN 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:
- 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-DFN (2x3)
24LC024T-E/MC FAQ
1.How can I place an order for 24LC024T-E/MC through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC024T-E/MC 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 24LC024T-E/MC reliable?
The price and inventory of 24LC024T-E/MC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC024T-E/MC is usually 5 days.
3.What payment methods are accepted for 24LC024T-E/MC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC024T-E/MC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC024T-E/MC?
24LC024T-E/MC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC024T-E/MC 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 24LC024T-E/MC?
For technical support, including 24LC024T-E/MC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC024T-E/MC requirements.
6.How does Aetrix verify that 24LC024T-E/MC is sourced from the original manufacturer or authorized distributors?
All 24LC024T-E/MC 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 24LC024T-E/MC meets industry standards.
7.What is the process for return or replacement of 24LC024T-E/MC?
All 24LC024T-E/MC units undergo pre-shipment inspection (PSI). If there is an issue with 24LC024T-E/MC, 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 24LC024T-E/MC part is unused and in its original packaging.
Return procedure for 24LC024T-E/MC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC024T-E/MC Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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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
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
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