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Microchip Technology 24LC024HT-I/SN
- Part No.:
- 24LC024HT-I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24LC024HT-I/SN.pdf
- Description:
- IC EEPROM 2KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,679
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Product details
Overview
24LC024HT-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 1 MHz clock support, 1 μA standby current, and hardware write protection for the upper half-array (80h–FFh). It serves as nonvolatile configuration storage in embedded controllers, sensor nodes, and power management ICs requiring robust data retention over 200 years.
For engineers reviewing the 24LC024HT-I/SN datasheet, 24LC024HT-I/SN pinout, 24LC024HT-I/SN application, or 24LC024HT-I/SN equivalent, this page delivers verified electrical specs, validated 8-pin SOIC package mapping, confirmed I²C timing compliance (1 MHz @ VCC ≥ 2.5V), and real-world use cases in industrial control and automotive subsystems.
Technical Context
The 24LC024HT-I/SN implements a two-wire I²C interface with Schmitt-trigger inputs and output slope control to suppress noise and eliminate ground bounce. Its internal address counter supports current-address, random, and sequential read modes, while the 16-byte page write buffer enables efficient burst writes without host-side timing constraints.
Hardware write protection is controlled solely by the WP pin state: tied to VCC, it locks addresses 80h–FFh; tied to VSS, full array access is permitted. The device uses an internal high-voltage generator and auto-erase logic to complete self-timed byte or page writes within ≤5 ms, independent of VCC level across its rated range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), single-block organization enabling simple address management in resource-constrained systems |
| VCC Range | 2.5V to 5.5V - compatible with standard 3.3V and 5V logic domains without level shifting |
| Max Clock Frequency | 1 MHz - supports high-speed I²C communication for fast configuration loading in boot sequences |
| Write Endurance | 1 million erase/write cycles - sufficient for firmware parameter logging in industrial monitoring applications |
| Data Retention | 200 years at +25°C - ensures long-term reliability in unattended equipment like utility meters and remote sensors |
| Standby Current | 1 μA max - minimizes quiescent power draw in battery-backed or energy-harvesting systems |
| Page Write Buffer | 16 bytes - reduces I²C transaction overhead by up to 16× compared to byte-write mode |
Pinout & Package
24LC024HT-I/SN is supplied in an 8-pin SOIC (150 mil) package, RoHS-compliant and rated for industrial temperature range (−40°C to +85°C). Pin 1 is A0; pin 8 is VCC. All packages share identical pin numbering and function mapping per Microchip DS22102A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Chip Select Inputs | Configure 3-bit slave address; enable up to eight devices on one I²C bus for scalable memory expansion |
| VSS | Ground Reference | Return path for all internal circuitry; must be low-impedance to ensure stable operation during write cycles |
| SDA | Serial Data Line | Open-drain bidirectional I²C data line requiring external pull-up; supports ACK polling during write completion detection |
| SCL | Serial Clock Input | Master-generated clock synchronizing all transfers; Schmitt-trigger input rejects noise spikes up to 50 ns |
| WP | Hardware Write-Protect | Logic-high enables permanent lock of upper 128 bytes (80h–FFh); critical for safeguarding calibration or security keys |
| VCC | Power Supply | Single 2.5–5.5V supply powers EEPROM core and interface; internal voltage detector disables writes below 1.5V nominal |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Compatibility | Enables faster configuration reads in time-critical boot stages versus legacy 100/400 kHz EEPROMs |
| Schmitt Trigger Inputs | Provides 0.05×VCC hysteresis on SDA/SCL, eliminating false triggering from EMI in motor drives or power supplies |
| Self-Timed Write Cycle | Removes need for host MCU to manage write timing; internal 5 ms max cycle completes autonomously |
| Half-Array Hardware Write Protect | Physically isolates critical firmware parameters from accidental overwrite during field updates |
| 16-Byte Page Write Buffer | Reduces required I²C start/stop sequences by 94% for 16-byte writes, lowering bus contention in multi-master systems |
Applications
| Industrial Sensor Calibration | Smart Meter Configuration Storage |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients and temperature compensation tables in pressure or current sensors deployed in harsh environments. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent calibration data accessed during power-up initialization. Use Value: Ensures measurement accuracy remains traceable over 200-year data retention, eliminating recalibration cycles in inaccessible installations. |
Use Scenario: Retaining tariff schedules, billing counters, and communication module settings in electricity/water meters operating unattended for >10 years. IC Role / Device Role / Timing Role: Secure parameter vault with hardware write protection preventing tampering with revenue-critical registers. Use Value: Half-array WP (80h–FFh) safeguards billing counters while allowing firmware update flags in lower memory to remain modifiable. |
| Automotive Body Control Module | Medical Device Settings Backup |
Use Scenario: Saving user preferences (mirror position, seat memory, lighting profiles) and diagnostic fault logs in 12V automotive BCMs. IC Role / Device Role / Timing Role: I²C slave storing volatile system state across ignition cycles; accessed via microcontroller during wake-up. Use Value: 1 μA standby current extends battery life during vehicle sleep mode; 1 MHz interface enables fast recall before driver interaction. |
Use Scenario: Backing up therapy parameters, alarm thresholds, and usage history in portable infusion pumps and glucose monitors. IC Role / Device Role / Timing Role: Fail-safe configuration store ensuring treatment continuity after power loss or battery replacement. Use Value: 1 million endurance cycles support daily parameter adjustments over 10+ years of clinical use without wear-out risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA024HT-I/SN | Wider VCC range (1.7–5.5V); supports 100/400 kHz only; lower 1.7V operation enables direct connection to Li-ion battery rails | Better suited for ultra-low-power portable devices where supply may dip below 2.5V | Select when system operates below 2.5V or requires extended voltage margin |
| AT24C02D-SSHM-T | Same 2 Kbit size and SOIC-8 package; supports 1 MHz I²C; rated for industrial temp but lacks half-array WP | Requires software-based write protection; no hardware lock for upper memory block | Choose when full-array write access is needed and WP functionality is managed externally |
Compared with 24AA024HT-I/SN and AT24C02D-SSHM-T, the 24LC024HT-I/SN uniquely balances 1 MHz speed, hardware half-array write protection, and industrial temperature rating-making it optimal for automotive and industrial systems demanding both performance and secure configuration storage.
Availability
24LC024HT-I/SN is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter configuration storage, and automotive body control modules requiring stable component supply across extended product lifecycles.
Supply support for 24LC024HT-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 leading provider of microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24LC024HT-I/SN belongs to Microchip's serial EEPROM product line, designed specifically for reliable, low-power nonvolatile data storage in industrial, automotive, and consumer systems where I²C interface simplicity and long-term data integrity are critical.
FAQ
What is the maximum I²C clock frequency supported by the 24LC024HT-I/SN?
The 24LC024HT-I/SN supports up to 1 MHz I²C clock frequency when VCC is between 2.5V and 5.5V. This is confirmed in Table 1-2 of the DS22102A datasheet under Param. No. 1 (FCLK). At lower voltages (<2.5V), the device is not rated for 1 MHz operation - the 24AA024H variant supports 400 kHz down to 1.7V, but the 24LC024HT-I/SN is specified strictly for 2.5V–5.5V operation.
Does the 24LC024HT-I/SN include hardware write protection, and how is it enabled?
Yes, the 24LC024HT-I/SN includes hardware write protection for the upper half of its memory array (addresses 80h–FFh). This feature is activated by tying the WP pin to VCC. When WP = VCC, writes to that 128-byte region are blocked; when WP = VSS, full array write access is permitted. This behavior is documented in Section 2.4 and Figure 6-2 of DS22102A.
What package type and temperature grade does the 24LC024HT-I/SN use?
The 24LC024HT-I/SN uses an 8-pin SOIC (150 mil) package and is rated for the industrial temperature range of −40°C to +85°C. The "I" suffix in the part number explicitly denotes industrial grade, and the "T" indicates tape-and-reel packaging. Package dimensions and marking details are provided in Section 9 of DS22102A.
How many devices can be connected on the same I²C bus using the 24LC024HT-I/SN?
Up to eight 24LC024HT-I/SN devices can be connected on a single I²C bus using the A0, A1, and A2 address pins. These three pins form the device's 3-bit slave address, allowing unique addressing across combinations of VSS/VCC connections. This capability is confirmed in the Device Selection Table and Section 2.3 of DS22102A.
What is the write endurance and data retention specification for the 24LC024HT-I/SN?
The 24LC024HT-I/SN guarantees 1 million erase/write cycles and 200 years of data retention at +25°C. These values are specified in Table 1-2 (Param. No. 18) and the Features list of DS22102A. Endurance is characterized at 25°C and VCC = 5.5V; retention is extrapolated from accelerated testing per industry standards.
24LC024HT-I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24LC024HT-I/SN FAQ
1.How can I place an order for 24LC024HT-I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC024HT-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 24LC024HT-I/SN reliable?
The price and inventory of 24LC024HT-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 24LC024HT-I/SN is usually 5 days.
3.What payment methods are accepted for 24LC024HT-I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC024HT-I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC024HT-I/SN?
24LC024HT-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC024HT-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 24LC024HT-I/SN?
For technical support, including 24LC024HT-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC024HT-I/SN requirements.
6.How does Aetrix verify that 24LC024HT-I/SN is sourced from the original manufacturer or authorized distributors?
All 24LC024HT-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 24LC024HT-I/SN meets industry standards.
7.What is the process for return or replacement of 24LC024HT-I/SN?
All 24LC024HT-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24LC024HT-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 24LC024HT-I/SN part is unused and in its original packaging.
Return procedure for 24LC024HT-I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC024HT-I/SN Tags
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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