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Microchip Technology 24LC08BHT-I/MNY
- Part No.:
- 24LC08BHT-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24LC08BHT-I/MNY.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,234
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Product details
Overview
24LC08BHT-I/MNY from Microchip Technology Inc. is an 8 Kbit I²C-compatible serial EEPROM organized as four 256 × 8-bit memory blocks, operating from 2.5V to 5.5V with 400 kHz max clock frequency, 16-byte page write buffer, and hardware write-protect for addresses 200h–3FFh. It is used in embedded systems for storing calibration data, configuration settings, and firmware parameters.
For engineers reviewing the 24LC08BHT-I/MNY datasheet, 24LC08BHT-I/MNY pinout, 24LC08BHT-I/MNY application, or 24LC08BHT-I/MNY equivalent, key selection criteria include VCC min (2.5V), industrial temperature range (−40°C to +85°C), TDFN-8 package dimensions (2×3 mm), half-array write-protection logic, and I²C timing compliance at 400 kHz.
Technical Context
The 24LC08BHT-I/MNY implements a slave-only I²C interface with fixed 7-bit address prefix '1010', block-select addressing (B1/B0), and no internal connection to A0/A1/A2 pins. Its memory architecture uses on-chip address pointer auto-increment and supports byte write, page write (up to 16 bytes within one 16-byte physical page), and three read modes: current address, random, and sequential.
Write protection is controlled solely by the WP pin: tied to VCC disables writes to upper half (200h–3FFh); tied to VSS enables full-array access. Internal self-timed erase/write cycles (typ. 3 ms, max 5 ms) eliminate external timing dependencies, and Schmitt-trigger inputs with 50 ns spike suppression ensure robust operation on noisy buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 8 Kbit (four 256 × 8-bit blocks), enabling storage of 1,024 bytes of nonvolatile configuration or calibration data |
| VCC operating range | 2.5V to 5.5V - requires stable mid-to-high voltage rail; not suitable for sub-2.5V battery-powered designs |
| Max I²C clock | 400 kHz - supports fast system-level communication without requiring low-speed bus arbitration |
| Page write capacity | 16 bytes per page - reduces transaction overhead when updating parameter sets or firmware metadata |
| Write endurance | 1 million cycles - sufficient for field-updatable systems logging infrequent state changes over 10+ years |
| Data retention | 200 years at 85°C - ensures long-term reliability in industrial control and automotive modules |
| Standby current | 1 µA max (industrial temp.) - minimizes quiescent power in always-on sensor nodes or backup power domains |
Pinout & Package
24LC08BHT-I/MNY is housed in an 8-lead TDFN (Thin Dual Flat No-lead) package with 2 mm × 3 mm body and NiPdAu finish (denoted by "Y" in MNY). The package has exposed thermal pad and gull-wing–style terminations compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No-connect | Internally unconnected; may be left floating or tied to VSS/VCC without functional impact |
| A1 | No-connect | Internally unconnected; no effect on device addressing or operation |
| A2 | No-connect | Internally unconnected; eliminates need for external pull-up/down resistors |
| VSS | Ground reference | Primary return path for all internal circuitry; must be low-impedance to minimize ground bounce during SDA transitions |
| SDA | Bidirectional I²C data line | Open-drain output requiring external pull-up (2 kΩ typical for 400 kHz); changes only during SCL low except for Start/Stop |
| SCL | I²C clock input | Input-only; synchronizes all data transfers; Schmitt-triggered for noise immunity |
| WP | Hardware write-protect control | Active-high signal: VCC enables half-array protection (200h–3FFh); VSS disables protection |
| VCC | Power supply | Supplies core logic and EEPROM array; must remain ≥2.5V during write cycles to prevent corruption |
Key Features
| Feature | Design Value |
|---|---|
| Half-array hardware write-protect | Prevents accidental overwrite of critical firmware or calibration data stored in upper 2 Kbytes (200h–3FFh) without software intervention |
| 16-byte page write buffer | Reduces I²C transaction count by up to 16× versus byte-write mode, improving bus efficiency in parameter-batch updates |
| Schmitt-trigger inputs with 50 ns spike suppression | Eliminates need for external RC filtering on SDA/SCL lines in electrically noisy environments (e.g., motor drives, power supplies) |
| Self-timed write cycle (max 5 ms) | Removes requirement for host MCU to manage write timing or polling delay-simplifies firmware and avoids bus blocking |
| ESD protection >4 kV | Enables safe handling and board-level integration without additional ESD protection components on I²C lines |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog front-end sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed via I²C during power-up initialization and periodic recalibration routines. Use Value: Ensures measurement accuracy across temperature and lifetime without requiring external NVRAM or battery-backed SRAM. | Use Scenario: Holding user-configurable therapy parameters (e.g., dosage limits, alarm thresholds) in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration store accessed during boot and runtime via isolated I²C bus. Use Value: Supports FDA-required audit trails and parameter persistence across battery swaps and firmware updates. |
| Automotive Body Control Module | Smart Energy Metering |
Use Scenario: Retaining seat/mirror position presets and lighting profiles in vehicle body control units operating across −40°C to +85°C. IC Role / Device Role / Timing Role: Industrial-temp EEPROM interfaced to microcontroller's I²C peripheral for persistent user preference storage. Use Value: Meets AEC-Q100 stress requirements for automotive electronics while delivering 200-year data retention at end-of-life. | Use Scenario: Logging tariff schedules, meter calibration constants, and tamper-event timestamps in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: High-reliability, low-power nonvolatile memory accessed during meter startup and scheduled firmware updates. Use Value: Achieves >1M write cycles and 1 µA standby current-critical for battery-backed meters with 10+ year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24LC08B-I/SN | Same die, SOIC-8 package (4.9×6.0 mm vs. TDFN's 2×3 mm); no NiPdAu finish; identical electrical specs | Preferred where manual soldering, test probing, or legacy PCB footprints are required | Select when board space allows larger package and RoHS-compliant matte tin finish suffices |
| AT24C08D-MAHM-T | 8 Kbit I²C EEPROM, 1.7–5.5V VCC, 16-byte page, but lacks hardware WP pin; uses software write-protect only | Requires firmware-level protection logic; unsuitable where hardware-enforced write lock is mandated | Choose only if WP functionality is unnecessary and footprint compatibility with Microchip devices is verified |
Compared with 24LC08BHT-I/MNY, the SOIC variant offers easier prototyping and rework, while the AT24C08D requires software-managed protection-making the original TDFN part optimal for space-constrained, safety-critical industrial designs needing guaranteed half-array lock.
Availability
24LC08BHT-I/MNY is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, and automotive body control modules requiring stable component supply with guaranteed long-term availability.
Supply support for 24LC08BHT-I/MNY 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 24LC08BHT-I/MNY belongs to Microchip's serial EEPROM product line, designed specifically for reliable, low-power, I²C-based nonvolatile storage in space-constrained industrial and automotive applications.
FAQ
What is the minimum VCC required for reliable operation of the 24LC08BHT-I/MNY?
The 24LC08BHT-I/MNY requires a minimum VCC of 2.5V for guaranteed operation across its full industrial temperature range (−40°C to +85°C). Operation below 2.5V is not specified and may result in incomplete write cycles or data corruption. This distinguishes it from the 24AA08H series, which supports down to 1.7V.
Does the 24LC08BHT-I/MNY support true I²C multi-master arbitration?
No-the 24LC08BHT-I/MNY operates exclusively as an I²C slave device and does not implement multi-master arbitration logic. It responds only to its fixed 7-bit address prefix (1010xxx) and relies entirely on the master controller to manage bus ownership, clock stretching, and collision avoidance.
How does the hardware write-protect feature work on the 24LC08BHT-I/MNY?
The WP pin on the 24LC08BHT-I/MNY enables hardware write-protection for memory addresses 200h–3FFh when pulled high to VCC. When WP = VSS, full-array read/write access is enabled. Protection is active immediately upon power-up and requires no software command-ensuring fail-safe data integrity.
Can the 24LC08BHT-I/MNY be used in automotive applications rated to 125°C?
No-the 24LC08BHT-I/MNY is qualified only for the industrial temperature range (−40°C to +85°C), indicated by the "I" suffix. For automotive-grade operation up to +125°C, Microchip specifies the 24LC08BH-E/MNY variant; using the "I" version beyond 85°C violates its qualification and risks data retention failure.
What is the maximum number of bytes that can be written in a single I²C transaction to the 24LC08BHT-I/MNY?
The 24LC08BHT-I/MNY supports up to 16 bytes per page write operation, constrained by its internal 16-byte page buffer. Attempting to write more than 16 bytes before issuing a Stop condition causes address wraparound within the same physical page, overwriting earlier data-not crossing into the next page.
24LC08BHT-I/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 8Kbit
- Memory Organization:
- 256 x 8 x 4
- 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-TDFN (2x3)
24LC08BHT-I/MNY FAQ
1.How can I place an order for 24LC08BHT-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC08BHT-I/MNY 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 24LC08BHT-I/MNY reliable?
The price and inventory of 24LC08BHT-I/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC08BHT-I/MNY is usually 5 days.
3.What payment methods are accepted for 24LC08BHT-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC08BHT-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC08BHT-I/MNY?
24LC08BHT-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC08BHT-I/MNY 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 24LC08BHT-I/MNY?
For technical support, including 24LC08BHT-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC08BHT-I/MNY requirements.
6.How does Aetrix verify that 24LC08BHT-I/MNY is sourced from the original manufacturer or authorized distributors?
All 24LC08BHT-I/MNY 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 24LC08BHT-I/MNY meets industry standards.
7.What is the process for return or replacement of 24LC08BHT-I/MNY?
All 24LC08BHT-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24LC08BHT-I/MNY, 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 24LC08BHT-I/MNY part is unused and in its original packaging.
Return procedure for 24LC08BHT-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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