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Microchip Technology 24LC08BHT-E/MNY
- Part No.:
- 24LC08BHT-E/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24LC08BHT-E/MNY.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,844
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Product details
Overview
24LC08BHT-E/MNY from Microchip Technology Inc. is an 8 Kbit I²C-compatible serial EEPROM organized as four 256 × 8-bit blocks, operating from 2.5V to 5.5V with 400 kHz max clock frequency, 16-byte page write buffer, and hardware write-protect for memory addresses 200h–3FFh. It targets embedded system configuration storage, sensor calibration data retention, and industrial control parameter backup.
For engineers reviewing the 24LC08BHT-E/MNY datasheet, 24LC08BHT-E/MNY pinout, 24LC08BHT-E/MNY application, or 24LC08BHT-E/MNY equivalent, key selection criteria include VCC min (2.5V), automotive temperature range (−40°C to +125°C), half-array write-protection via WP pin, and TDFN-8 (2×3 mm) RoHS-compliant packaging.
Technical Context
The 24LC08BHT-E/MNY implements a slave-only I²C interface with fixed 7-bit address prefix '1010' and 3-bit block-select addressing, supporting byte and page write modes with self-timed erase/write cycles. Its Schmitt-trigger inputs and input filter spike suppression (50 ns) enable robust operation on noisy buses.
Internal architecture includes a 16-byte page buffer, address pointer auto-increment, and VCC threshold detector disabling write logic below 1.5V. Write protection is implemented via dedicated WP pin tied to VCC, locking addresses 200h–3FFh while permitting full read access across the 000h–3FFh address space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8), organized as four 256-word blocks for modular firmware/data partitioning |
| VCC Range | 2.5V to 5.5V - supports direct connection to 3.3V or 5V rails without level shifting |
| Max Clock Frequency | 400 kHz - enables high-throughput configuration writes in time-constrained boot sequences |
| Page Write Buffer | 16 bytes - reduces I²C transaction count by up to 16× versus byte-write for contiguous data |
| Write Endurance | 1 million cycles - ensures >10 years of daily reconfiguration in industrial logging applications |
| Data Retention | 200 years at 25°C - guarantees long-term calibration stability without periodic refresh |
| Temp Range | −40°C to +125°C (Automotive E-grade) - qualified for under-hood and powertrain control modules |
Pinout & Package
24LC08BHT-E/MNY uses an 8-lead TDFN (2×3 mm) package with exposed pad, specified per Microchip drawing 0000000000000000000000000000000000000000000000000000000000000000. Pin functions are electrically identical across all 8-lead packages (PDIP/SOIC/TSSOP/MSOP/TDFN).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No internal connection - may be left floating or tied to VSS/VCC without functional impact |
| A1 | Address Input | No internal connection - no effect on device addressing or operation |
| A2 | Address Input | No internal connection - unused per datasheet Table 8-1 and Figure 1-1 |
| VSS | Ground Reference | System return path for all I/O and core logic; must be low-impedance for noise immunity |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up (2 kΩ for 400 kHz) |
| SCL | Serial Clock Input | Master-generated clock synchronizing all read/write transfers; edge-sensitive timing |
| WP | Write-Protect Control | Active-high enable: tie to VCC to lock 200h–3FFh; tie to VSS for full read/write access |
| VCC | Power Supply | 2.5–5.5V supply with internal brown-out detection disabling writes below 1.5V |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt Trigger Inputs | 50 mV hysteresis (0.05 VCC) on SDA/SCL eliminates false triggering from bus noise |
| Output Slope Control | Controlled rise/fall times prevent ground bounce during fast I²C transitions |
| Page Write Time | 3 ms typical - enables burst writes without blocking host MCU for extended periods |
| ESD Protection | >4 kV HBM - sustains handling and board-level ESD events without latch-up |
| RoHS Compliance | Nickel-Palladium-Gold (NiPdAu) finish on MNY package - meets IPC-J-STD-020 moisture sensitivity Level 1 |
Applications
| Industrial PLC Configuration Storage | Automotive Sensor Calibration |
|---|---|
Use Scenario: Storing I/O mapping tables, PID tuning parameters, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding user-defined operational settings across power cycles. Use Value: Enables field-upgradable logic without firmware reflashing; 200-year retention prevents drift in critical safety parameters. | Use Scenario: Recording factory-trimmed offset/gain coefficients for pressure, temperature, and position sensors in engine control units. IC Role / Device Role / Timing Role: Calibration data vault accessed once at startup to initialize ADC reference points. Use Value: Automotive-grade temperature range (−40°C to +125°C) ensures coefficient validity across full vehicle operating envelope. |
| Medical Device Usage Logs | Smart Energy Meter Firmware Patching |
Use Scenario: Logging sterilization cycles, error codes, and maintenance timestamps in portable diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-resistant event journal with write-protection enabled for historical records. Use Value: Hardware WP pin locks log segment (200h–3FFh) against accidental overwrites during routine diagnostics. | Use Scenario: Storing delta patches for firmware updates in utility-grade electricity meters deployed in remote locations. IC Role / Device Role / Timing Role: Secure patch repository supporting atomic 16-byte page writes to minimize update window. Use Value: 1M endurance cycle rating allows >270 daily patch deployments over 10 years of field service. |
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/MNY | Same die, Industrial temp range (−40°C to +85°C); identical electrical specs and pinout | Lacks automotive qualification; unsuitable for under-hood or powertrain use | Select when cost sensitivity outweighs extended temperature requirement |
| AT24C08D-MAHM-T | 8 Kbit I²C EEPROM, 1.7–5.5V VCC, 1 MHz clock, 128-byte page buffer, different A0/A1/A2 addressing scheme | Supports full 8-pin address decoding; higher speed but requires layout changes for SDA/SCL pull-up adjustment | Choose for systems needing faster writes or multi-device I²C bus expansion |
Compared with 24LC08BHT-E/MNY, the 24LC08B-I/MNY offers identical functionality at lower cost for non-automotive use, while the AT24C08D-MAHM-T provides higher bandwidth and flexible addressing at the expense of pinout compatibility and automotive qualification.
Availability
24LC08BHT-E/MNY is available at Aetrix Electronics and suitable for industrial PLC configuration storage, automotive sensor calibration, and medical device usage logs requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24LC08BHT-E/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 24LC08B series belongs to Microchip's serial EEPROM product line, engineered for reliable nonvolatile data storage in resource-constrained embedded systems requiring I²C interface simplicity and automotive-grade reliability.
FAQ
What is the minimum VCC voltage required for reliable operation of the 24LC08BHT-E/MNY?
The 24LC08BHT-E/MNY requires a minimum VCC of 2.5V for guaranteed operation across its full −40°C to +125°C automotive temperature range. Below 2.5V, the device is not characterized, and internal write logic is disabled if VCC drops below 1.5V due to the built-in threshold detector. This ensures data integrity during brown-out conditions without external supervision circuitry.
How does the WP pin function on the 24LC08BHT-E/MNY, and what memory region does it protect?
The WP pin on the 24LC08BHT-E/MNY is a hardware write-protect input: when tied to VCC, it disables write operations to memory addresses 200h–3FFh (half the 8 Kbit array), while allowing full read access to all 000h–3FFh locations. When tied to VSS, write protection is disabled and the entire memory becomes writable. This selective locking enables secure storage of immutable calibration data alongside user-modifiable configuration.
What package type does the 24LC08BHT-E/MNY use, and what are its key mechanical features?
The 24LC08BHT-E/MNY uses an 8-lead TDFN (Thin Dual Flat No-lead) package designated "MNY", measuring 2 mm × 3 mm with an exposed thermal pad. It features NiPdAu finish (RoHS compliant), moisture sensitivity level 1 per IPC-J-STD-020, and is optimized for high-density PCB layouts where SOIC or TSSOP footprints are prohibitive. The package is identical in pinout to 8-lead PDIP, SOIC, TSSOP, and MSOP variants.
Can the 24LC08BHT-E/MNY perform page writes across memory boundaries, and what happens if it does?
No, the 24LC08BHT-E/MNY cannot perform page writes across physical page boundaries. Its 16-byte page buffer wraps within the current page (e.g., writing 16 bytes starting at address 3F0h will overwrite bytes 3F0h–3FFh and then wrap to 300h–30Fh). Attempting to cross a boundary causes data corruption in the starting page rather than sequential continuation. Application firmware must validate write start addresses to ensure alignment with 16-byte boundaries (000h, 010h, ..., 3F0h).
What is the maximum I²C clock frequency supported by the 24LC08BHT-E/MNY, and under what conditions?
The 24LC08BHT-E/MNY supports a maximum I²C clock frequency of 400 kHz when VCC is between 2.5V and 5.5V, as specified in Table 1-2. At VCC < 2.5V, the device is not characterized for 400 kHz operation; however, since the 24LC08BHT-E/MNY is rated for 2.5V minimum, this condition does not apply. The 400 kHz capability enables efficient bulk data transfer while maintaining compatibility with standard Fast-mode I²C controllers.
24LC08BHT-E/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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
24LC08BHT-E/MNY FAQ
1.How can I place an order for 24LC08BHT-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC08BHT-E/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-E/MNY reliable?
The price and inventory of 24LC08BHT-E/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-E/MNY is usually 5 days.
3.What payment methods are accepted for 24LC08BHT-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC08BHT-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC08BHT-E/MNY?
24LC08BHT-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC08BHT-E/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-E/MNY?
For technical support, including 24LC08BHT-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC08BHT-E/MNY requirements.
6.How does Aetrix verify that 24LC08BHT-E/MNY is sourced from the original manufacturer or authorized distributors?
All 24LC08BHT-E/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-E/MNY meets industry standards.
7.What is the process for return or replacement of 24LC08BHT-E/MNY?
All 24LC08BHT-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24LC08BHT-E/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-E/MNY part is unused and in its original packaging.
Return procedure for 24LC08BHT-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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