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Microchip Technology 24LC024H-E/SN16KVAO
- Part No.:
- 24LC024H-E/SN16KVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24LC024H-E/SN16KVAO.pdf
- Description:
- IC EEPROM 2KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,463
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Product details
Overview
24LC024H-E/SN16KVAO 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 is used in embedded systems for storing calibration data, configuration settings, and device identifiers where low-power nonvolatile storage is required.
For engineers reviewing the 24LC024H-E/SN16KVAO datasheet, 24LC024H-E/SN16KVAO pinout, 24LC024H-E/SN16KVAO application, or 24LC024H-E/SN16KVAO equivalent, this page delivers verified electrical specs, package mapping, I²C timing compliance (1 MHz @ VCC ≥ 2.5V), page-write buffer behavior (16-byte), and hardware write-protect logic implementation - all confirmed for the exact 24LC024H-E/SN16KVAO variant.
Technical Context
The 24LC024H-E/SN16KVAO implements a standard two-wire I²C slave interface with Schmitt-trigger inputs on SDA and SCL for noise immunity, plus output slope control to suppress ground bounce. Its internal address counter enables sequential reads across the full 256-byte array with automatic rollover from FFh to 00h.
It supports byte and page write modes with self-timed erase/write cycles (max 5 ms), uses a 3-bit hardware chip select (A0–A2) enabling up to eight devices on one bus, and enforces half-array write protection via the WP pin tied to VCC - locking addresses 80h–FFh while allowing unrestricted access to 00h–7Fh.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), single-block organization - simplifies address management and eliminates bank switching. |
| VCC Range | 2.5V to 5.5V - compatible with 3.3V and 5V logic domains; excludes 1.7V–2.49V operation supported by 24AA024H. |
| Max Clock Frequency | 1 MHz - enables faster firmware updates and high-throughput configuration writes vs. legacy 100/400 kHz EEPROMs. |
| Write Cycle Time | ≤ 5 ms - defines minimum delay between write commands; impacts real-time logging latency and system responsiveness. |
| Endurance | 1 million erase/write cycles - ensures reliable operation over 10+ years in field-deployed industrial controllers. |
| Data Retention | 200 years at +25°C - guarantees long-term integrity of stored calibration coefficients without refresh. |
| Write Protection | Hardware-enabled half-array lock (80h–FFh) via WP pin - prevents accidental overwrite of critical firmware parameters while permitting runtime updates to user-configurable zones. |
Pinout & Package
24LC024H-E/SN16KVAO is supplied in an 8-pin SOIC (150 mil) package, RoHS-compliant and Pb-free per JEDEC Level 3 moisture sensitivity rating. Pin numbering follows standard SOIC orientation (pin 1 = A0, pin 8 = VCC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip Select Input | LSB of 3-bit hardware address; sets device ID on shared I²C bus - allows up to eight 24LC024H-E/SN16KVAO units on one bus. |
| A1 | Chip Select Input | Mid-bit of 3-bit hardware address; must be hard-wired to VSS or VCC - no floating states permitted. |
| A2 | Chip Select Input | MSB of 3-bit hardware address; determines unique slave address (1010 A2 A1 A0 R/W) for I²C arbitration. |
| VSS | Ground Reference | Primary return path for all internal logic and I/O; requires low-impedance connection to system GND plane. |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up (2 kΩ typical for 1 MHz); changes only during SCL low except for Start/Stop. |
| SCL | Serial Clock Input | Master-generated clock; Schmitt-trigger input ensures robust timing under noisy conditions; rise/fall times ≤300 ns @ VCC ≥2.5V. |
| WP | Write-Protect Control | Active-high enable: tie to VCC to lock 80h–FFh; tie to VSS for full-array write access - no internal pull-up/pull-down. |
| VCC | Power Supply | 2.5V–5.5V supply input; internal voltage detector disables writes below 1.5V to prevent partial writes during brownout. |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Compatibility | Enables 2.5× faster writes than 400 kHz EEPROMs - reduces boot-time configuration load by ~60% in resource-constrained MCUs. |
| Schmitt Trigger Inputs | Input hysteresis ≥0.05×VCC on SDA/SCL - rejects >50 ns noise spikes without external filtering, critical for automotive ECU environments. |
| Page Write Buffer (16 bytes) | Reduces I²C transaction overhead: one Start/Stop sequence writes up to 16 bytes - cuts bus utilization by 88% vs. byte-wise writes. |
| Half-Array Hardware Write Protect | Physically isolates 128 bytes (80h–FFh) from accidental overwrite - preserves factory-trimmed sensor offsets or security keys across firmware updates. |
| 1 μA Standby Current | Supports battery-backed operation for >10 years on a CR2032 coin cell - ideal for smart meter tamper logs and IoT endpoint configuration storage. |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
|
Use Scenario: Storing temperature-compensated gain/offset coefficients for analog front-end sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with guaranteed 200-year retention; accessed during power-up initialization via I²C at 400 kHz. Use Value: Eliminates need for external trimming potentiometers; enables field recalibration without hardware modification. |
Use Scenario: Holding patient-specific therapy parameters and regulatory audit logs in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, low-power configuration store; WP pin permanently tied to VCC to protect FDA-mandated safety-critical settings. Use Value: Prevents unauthorized runtime modification of dose limits while allowing clinicians to update non-critical UI preferences. |
| Automotive Body Control Module | Consumer Appliance Settings |
|
Use Scenario: Saving seat/mirror position memory and lighting profiles in 12V vehicle systems with wide ambient temperature range. IC Role / Device Role / Timing Role: Automotive-grade (–40°C to +125°C) EEPROM; operates reliably during cold cranking (2.5V min) and engine bay heat soak. Use Value: Maintains user preferences across battery disconnects; withstands 1M+ ignition cycles without data corruption. |
Use Scenario: Retaining cooking mode history, child lock status, and energy usage counters in smart ovens and washing machines. IC Role / Device Role / Timing Role: Cost-optimized, RoHS-compliant memory; interfaces with 8-bit MCU via 100 kHz I²C during idle periods. Use Value: Enables "resume last cycle" functionality and regulatory energy reporting without adding FRAM cost premium. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA024H-I/SN | Wider VCC range (1.7V–5.5V); max clock 400 kHz; rated for –40°C to +85°C only. | Suitable for battery-powered portable devices requiring sub-2.5V operation but not automotive thermal stress. | Select 24AA024H-I/SN when operating below 2.5V or when 1 MHz speed is unnecessary - avoids over-specifying for cost-sensitive designs. |
| AT24C02C-SSHM-T | Same 2 Kbit size and SOIC-8 package; supports 1 MHz I²C; endurance 100k cycles (vs. 1M); no hardware write-protect pin. | Lacks dedicated WP pin - requires software-based protection or external logic for critical data zones. | Choose AT24C02C-SSHM-T only if WP functionality is unused and lower endurance suffices; verify layout compatibility with identical pinout. |
Compared with 24LC024H-E/SN16KVAO, the 24AA024H-I/SN trades 1 MHz speed and automotive temperature rating for broader voltage flexibility, while the AT24C02C-SSHM-T sacrifices endurance and hardware write protection to meet legacy design reuse requirements - neither offers drop-in replacement without validation of timing, voltage, and protection architecture.
Availability
24LC024H-E/SN16KVAO is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, automotive body control modules, and consumer appliance settings requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24LC024H-E/SN16KVAO 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 manufacturing and support infrastructure.
The 24LC024H belongs to Microchip's serial EEPROM product line, engineered for robust, low-power nonvolatile storage in automotive, industrial, and medical applications where data integrity, extended temperature operation, and I²C interoperability are critical.
FAQ
What is the maximum I²C clock frequency supported by the 24LC024H-E/SN16KVAO?
The 24LC024H-E/SN16KVAO supports up to 1 MHz I²C clock frequency when VCC is 2.5V or higher. This is explicitly specified in the Device Selection Table and confirmed in AC Characteristics Table 1-2, distinguishing it from the 24AA024H variant which maxes out at 400 kHz. Operation above 400 kHz requires strict adherence to rise/fall time limits (≤300 ns) and bus capacitance constraints.
How does hardware write protection work on the 24LC024H-E/SN16KVAO?
Hardware write protection on the 24LC024H-E/SN16KVAO is controlled by the WP pin: when tied to VCC, addresses 80h–FFh (upper 128 bytes) are locked against write operations, while 00h–7Fh remain writable; when tied to VSS, full-array writes are permitted. This protection is active during power-up and persists across VCC transitions - no software command required.
What package type is used for the 24LC024H-E/SN16KVAO?
The 24LC024H-E/SN16KVAO is packaged in an 8-pin SOIC (150 mil) body, as confirmed by the Package Types diagram on DS22102A-page 2 and the marking example "24L024HI SN 0821" under TSSOP/MSOP/TDFN cross-reference. The "SN" suffix in the part number directly denotes SOIC packaging per Microchip's standard nomenclature.
Can multiple 24LC024H-E/SN16KVAO devices share the same I²C bus?
Yes - up to eight 24LC024H-E/SN16KVAO devices can coexist on a single I²C bus using the A0, A1, and A2 pins to configure unique 3-bit slave addresses. Each pin must be hard-wired to either VSS or VCC; floating states are prohibited. The base address is 1010b, with A2/A1/A0 forming the three LSBs of the 7-bit address.
What is the endurance and data retention specification for the 24LC024H-E/SN16KVAO?
The 24LC024H-E/SN16KVAO guarantees 1 million erase/write cycles and 200 years of data retention at +25°C, as stated in the Features section and Electrical Characteristics table (Param. No. 18 and Note 4). These values are characterized - not tested per unit - but ensured through process and design controls validated across wafer lots and temperature extremes.
24LC024H-E/SN16KVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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 ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24LC024H-E/SN16KVAO FAQ
1.How can I place an order for 24LC024H-E/SN16KVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC024H-E/SN16KVAO 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 24LC024H-E/SN16KVAO reliable?
The price and inventory of 24LC024H-E/SN16KVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC024H-E/SN16KVAO is usually 5 days.
3.What payment methods are accepted for 24LC024H-E/SN16KVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC024H-E/SN16KVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC024H-E/SN16KVAO?
24LC024H-E/SN16KVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC024H-E/SN16KVAO 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 24LC024H-E/SN16KVAO?
For technical support, including 24LC024H-E/SN16KVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC024H-E/SN16KVAO requirements.
6.How does Aetrix verify that 24LC024H-E/SN16KVAO is sourced from the original manufacturer or authorized distributors?
All 24LC024H-E/SN16KVAO 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 24LC024H-E/SN16KVAO meets industry standards.
7.What is the process for return or replacement of 24LC024H-E/SN16KVAO?
All 24LC024H-E/SN16KVAO units undergo pre-shipment inspection (PSI). If there is an issue with 24LC024H-E/SN16KVAO, 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 24LC024H-E/SN16KVAO part is unused and in its original packaging.
Return procedure for 24LC024H-E/SN16KVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC024H-E/SN16KVAO Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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AT24C08C-STUM-T
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