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Microchip Technology 24LC024-I/SN
- Part No.:
- 24LC024-I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24LC024-I/SN.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,255
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Product details
Overview
24LC024-I/SN 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 industrial temperature range (–40°C to +85°C). It supports up to 400 kHz clock frequency, features Schmitt-trigger inputs for noise immunity, and is used in embedded system configuration storage, sensor calibration data retention, and firmware parameter backup.
For engineers reviewing the 24LC024-I/SN datasheet, 24LC024-I/SN pinout, 24LC024-I/SN application, or 24LC024-I/SN equivalent, key selection criteria include VCC voltage compatibility (2.5–5.5 V), WP-enabled hardware write protection, 8-pin SOIC package footprint, and guaranteed 1 million erase/write cycles with >200-year data retention.
Technical Context
The 24LC024-I/SN implements a standard two-wire I²C interface with slave addressing via A0–A2 pins, supporting up to eight devices on a single bus. Its internal architecture includes a 16-byte page write buffer, self-timed erase/write cycle, and dedicated write-protect circuitry tied to the WP pin - active only when WP = VCC.
It uses CMOS technology with Schmitt-trigger inputs and output slope control to suppress ground bounce and noise spikes. The device incorporates a VCC threshold detector that disables write logic below 1.5 V and supports both 100 kHz (VCC < 2.5 V) and 400 kHz (VCC ≥ 2.5 V) operation modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 2 Kbit (256 × 8-bit), sufficient for small configuration tables or calibration constants in space-constrained designs |
| VCC range | 2.5 V to 5.5 V - compatible with 3.3 V and 5 V microcontroller I/O domains without level shifting |
| Max clock frequency | 400 kHz at VCC ≥ 2.5 V - enables faster bulk writes than 100 kHz legacy EEPROMs |
| Page write size | 16 bytes - reduces I²C transaction overhead versus byte-write-only devices |
| Write endurance | 1 million erase/write cycles - supports frequent field updates in telemetry or logging applications |
| Data retention | >200 years at +25°C - ensures long-term reliability in unpowered storage scenarios |
| Temp range | Industrial: –40°C to +85°C - qualified for use in automotive body electronics and industrial controllers |
| ESD protection | >4 kV HBM - improves robustness during board handling and system integration |
Pinout & Package
24LC024-I/SN is supplied in an 8-pin SOIC (3.90 mm) package per Microchip's DS21210N specification. Pin 1 is marked by laser, and the package is Pb-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address input | LSB of 3-bit hardware slave address; sets device ID when multiple EEPROMs share I²C bus |
| A1 | Address input | Middle bit of slave address; enables up to eight unique addresses (000–111) across devices |
| A2 | Address input | MSB of slave address; required for bus expansion beyond two devices |
| VSS | Ground reference | Common return path for all internal logic and I/O; must be low-impedance connection |
| SDA | Serial data I/O | Open-drain bidirectional line requiring external pull-up resistor (2 kΩ typical for 400 kHz) |
| SCL | Serial clock input | Master-generated clock synchronizing all read/write transfers; Schmitt-trigger input rejects noise |
| WP | Hardware write-protect | Active-high enable: tie to VCC to lock entire memory array against accidental writes |
| VCC | Power supply | Primary power rail (2.5–5.5 V); internal voltage detector disables writes if VCC drops below 1.5 V |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write-protection | WP pin provides unconditional, non-volatile memory lock independent of software state or power loss |
| 16-byte page write buffer | Reduces I²C protocol overhead by up to 16× versus byte-write mode, accelerating configuration updates |
| Schmitt-trigger inputs | Eliminates false triggering from bus noise, enabling reliable operation in electrically noisy environments |
| Low standby current | 1 μA typical ICCS - extends battery life in always-on IoT sensors and portable medical devices |
| Cascadable architecture | Supports up to eight 24LC024-I/SN devices on one I²C bus, enabling scalable memory expansion |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Storing user-defined I/O mapping, scaling factors, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent settings across power cycles. Use Value: Hardware WP prevents corruption during firmware updates or brown-out events, ensuring deterministic startup behavior. | Use Scenario: Retaining seat position memory, mirror presets, and lighting profiles in vehicle BCMs. IC Role / Device Role / Timing Role: Dedicated EEPROM for user preference data, isolated from main MCU flash wear cycles. Use Value: 1M endurance and >200-year retention guarantee long-term reliability over 15+ year vehicle lifetimes. |
| Medical Sensor Calibration Data | Smart Meter Firmware Parameter Backup |
Use Scenario: Saving factory-calibrated offset/gain coefficients for analog front-end sensors in portable diagnostics equipment. IC Role / Device Role / Timing Role: Tamper-resistant storage for precision calibration constants accessed at boot time. Use Value: WP pin ensures coefficients remain unaltered during field servicing or software reflash operations. | Use Scenario: Backing up tariff schedules, billing counters, and communication keys in utility smart meters. IC Role / Device Role / Timing Role: Secure, low-power nonvolatile memory for critical operational parameters. Use Value: 2.5–5.5 V operation matches meter power rails; 400 kHz I²C allows fast parameter loading during commissioning. |
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/SN | Wider VCC range (1.7–5.5 V), no WP pin on SOT-23 variant; same 2 Kbit capacity and SOIC-8 package | Lacks hardware write-protection - requires software-based locking or external logic for secure writes | Select when lower-voltage operation (<2.5 V) is required and WP is managed externally or not needed |
| AT24C02C-SSHM-T | Same 2 Kbit density, 1.7–5.5 V VCC, 400 kHz, but no WP pin; manufactured by Microchip (formerly Atmel) | Relies on software write-enable sequence instead of hardware WP; identical pinout and timing | Choose for drop-in replacement where hardware write-protection is unnecessary and legacy Atmel sourcing is preferred |
Compared with 24LC024-I/SN, 24AA024-I/SN offers broader voltage flexibility but removes hardware write-protection, while AT24C02C-SSHM-T provides identical functionality without WP - making 24LC024-I/SN the only option among the three with guaranteed physical write lock for safety-critical configuration storage.
Availability
24LC024-I/SN is available at Aetrix Electronics and suitable for industrial PLC configuration storage, automotive body control modules, and medical sensor calibration data retention requiring stable component supply across extended product lifecycles.
Supply support for 24LC024-I/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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and memory products, with global design, manufacturing, and distribution infrastructure.
The 24LC024-I/SN belongs to Microchip's 24XX024/24XX025 EEPROM family, designed specifically for reliable, low-power, I²C-based nonvolatile data storage in industrial, automotive, and consumer systems.
FAQ
What is the maximum clock frequency supported by the 24LC024-I/SN?
The 24LC024-I/SN supports up to 400 kHz I²C clock frequency when VCC is 2.5 V or higher. At VCC below 2.5 V, maximum clock rate drops to 100 kHz per DS21210N electrical specifications. This dual-speed capability ensures interoperability across mixed-voltage systems while maintaining timing compliance.
Does the 24LC024-I/SN have hardware write-protection, and how is it implemented?
Yes, the 24LC024-I/SN includes a dedicated hardware write-protect (WP) pin. When WP is tied to VCC, the entire 2 Kbit memory array is locked against write or erase operations. Tying WP to VSS disables protection. This feature is physically present and functional in the 24LC024-I/SN SOIC package and is documented in Section 2.4 of the DS21210N datasheet.
What package type is used for the 24LC024-I/SN part number?
The 24LC024-I/SN uses an 8-pin SOIC (Small Outline Integrated Circuit) package with 3.90 mm body width, as confirmed by Microchip's packaging table and marking example "24LC024I SN 0519" in DS21210N-page 12. The "SN" suffix explicitly denotes this SOIC variant.
How many erase/write cycles does the 24LC024-I/SN guarantee?
The 24LC024-I/SN guarantees more than 1 million erase/write cycles under standard conditions (25°C, VCC = 5.5 V), as specified in Table 1-2, Note 4 of DS21210N. This endurance rating is ensured through characterization and applies to the full memory array, supporting frequent field updates in telemetry and control applications.
Is the 24LC024-I/SN compatible with standard I²C protocols and controllers?
Yes, the 24LC024-I/SN is fully I²C™-compatible, implementing standard START/STOP conditions, ACK/NACK handshaking, and 7-bit slave addressing with fixed control code '1010'. It operates with standard I²C master controllers without requiring custom drivers or protocol extensions, as verified in Sections 3.0 and 4.0 of DS21210N.
24LC024-I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24LC024-I/SN FAQ
1.How can I place an order for 24LC024-I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC024-I/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 24LC024-I/SN reliable?
The price and inventory of 24LC024-I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC024-I/SN is usually 5 days.
3.What payment methods are accepted for 24LC024-I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC024-I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC024-I/SN?
24LC024-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC024-I/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 24LC024-I/SN?
For technical support, including 24LC024-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC024-I/SN requirements.
6.How does Aetrix verify that 24LC024-I/SN is sourced from the original manufacturer or authorized distributors?
All 24LC024-I/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 24LC024-I/SN meets industry standards.
7.What is the process for return or replacement of 24LC024-I/SN?
All 24LC024-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24LC024-I/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 24LC024-I/SN part is unused and in its original packaging.
Return procedure for 24LC024-I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC024-I/SN Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
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