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Microchip Technology 24LC01BHT-E/MNY
- Part No.:
- 24LC01BHT-E/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24LC01BHT-E/MNY.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,345
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Product details
Overview
24LC01BHT-E/MNY from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM designed for nonvolatile data storage in space-constrained embedded systems. It operates from 2.5V to 5.5V, supports up to 400 kHz clock frequency, features hardware write-protection for the upper half-array (40h–7Fh), and delivers ≤1 μA standby current at industrial and automotive temperature ranges.
For engineers reviewing the 24LC01BHT-E/MNY datasheet, 24LC01BHT-E/MNY pinout, 24LC01BHT-E/MNY application, or 24LC01BHT-E/MNY equivalent, this page provides verified electrical parameters, package-specific terminal mapping, real-world use cases, and validated alternative parts for design-in and supply continuity planning.
Technical Context
The 24LC01BHT-E/MNY implements a two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal address counter enables current-address, random, and sequential read modes, while the 8-byte page buffer supports efficient page writes with typical 3 ms write cycle time.
Write protection is implemented via the WP pin: tied to VCC, it disables writes to addresses 40h–7Fh; tied to VSS, full array access is enabled. The device uses on-chip charge pump for EEPROM programming and includes VCC threshold detection to inhibit writes below 1.5V, ensuring data integrity during brown-out conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit array), organized as single block - fixed addressing simplifies firmware integration and eliminates bank-switching logic. |
| Supply Voltage Range | 2.5V to 5.5V - compatible with 3.3V and 5V logic domains without level-shifting in most applications. |
| I²C Clock Frequency | Up to 400 kHz (standard/fast-mode) - enables high-throughput configuration storage in real-time systems. |
| Write Cycle Time | Typical 3 ms per byte or page - deterministic timing allows precise bus arbitration and avoids indefinite blocking in interrupt-driven firmware. |
| Endurance & Retention | 1 million erase/write cycles; >200 years data retention - suitable for field-updatable calibration tables and infrequently modified system parameters. |
| Temperature Range | −40°C to +125°C (Automotive E-grade) - qualified for under-hood, powertrain, and industrial control environments. |
| ESD Protection | ≥4 kV HBM - robust against handling and board-level transients without external protection components. |
Pinout & Package
24LC01BHT-E/MNY is housed in an 8-lead Plastic Dual Flat, No Lead (DFN) package (MNY), measuring 2 mm × 3 mm × 0.55 mm, with wettable flank leads for automated optical inspection (AOI) and reliable solder-joint quality in high-reliability assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device Address Inputs | No internal connection - may be left floating or tied to VSS/VCC without affecting operation; simplifies PCB layout and reduces BOM count. |
| VSS | Ground Reference | Primary return path for all internal circuitry; must be low-impedance and co-located with decoupling capacitor. |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up (2 kΩ @ 400 kHz); supports multi-master arbitration and ACK polling. |
| SCL | Serial Clock Input | Master-generated synchronous clock; Schmitt-trigger input ensures noise immunity on long or noisy traces. |
| WP | Hardware Write-Protect | Logic-high (VCC) enables half-array protection (40h–7Fh); critical for safeguarding factory-calibrated or safety-critical parameters. |
| VCC | Power Supply | 2.5V–5.5V input with internal voltage regulation - powers EEPROM core and interface logic; requires local 100 nF ceramic decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Half-Array Hardware Write-Protection | WP pin disables writes to memory addresses 40h–7Fh when pulled high - prevents accidental corruption of critical calibration or security data without software overhead. |
| Page Write Capability (8 bytes) | Reduces I²C transaction count by up to 8× versus byte-write mode - improves bus efficiency and lowers CPU utilization in burst-write scenarios. |
| Schmitt Trigger + Output Slope Control | Eliminates ground bounce and rejects noise spikes >50 ns - enables reliable operation on shared PCB traces with switching regulators or motor drivers. |
| Low-Power Operation | 1 μA max standby current at 85°C - extends battery life in always-on sensor nodes and portable diagnostic tools. |
| Automotive Temperature Qualification | Rated −40°C to +125°C (E-grade) - meets AEC-Q100 stress test requirements for automotive electronics without derating. |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients and linearization tables for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during power-up initialization and runtime recalibration routines. Use Value: Enables plug-and-play sensor replacement with zero manual adjustment; 1M endurance supports field recalibration over product lifetime. |
Use Scenario: Holding user-selectable therapy parameters, device ID, and audit log metadata in portable infusion pumps and diagnostic monitors. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration memory with hardware write-lock for regulatory-compliant data integrity. Use Value: WP pin protects FDA-mandated calibration records from overwrite; 125°C rating supports sterilization cycle exposure. |
| Automotive Body Control Module | Smart Energy Metering |
Use Scenario: Saving seat/mirror position presets, lighting profiles, and door lock settings in vehicle body control units (BCUs). IC Role / Device Role / Timing Role: Persistent storage node on LIN/I²C hybrid bus, interfaced via microcontroller GPIO or dedicated I²C peripheral. Use Value: E-grade temperature range ensures reliability in trunk-mounted ECUs; 400 kHz speed enables fast profile recall during ignition sequence. |
Use Scenario: Recording tariff schedules, meter firmware version, and tamper-event timestamps in ANSI C12.20-compliant smart electricity meters. IC Role / Device Role / Timing Role: Secure boot configuration and compliance-critical event logging storage with deterministic write timing. Use Value: 3 ms page write time guarantees timestamp accuracy within 10 ms window; >200-year retention satisfies utility 20+ year deployment mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA01HT-I/MNY | Lower VCC min (1.7V), same 1 Kbit density and I²C interface; rated only to +85°C (I-temp) | Not qualified for automotive or extended-temperature industrial use; unsuitable where 125°C operation required | Select only if system operates down to 1.7V and ambient stays ≤85°C - verify WP behavior matches 24LC01BHT-E/MNY (identical). |
| AT24C01D-SSHM-T | Same 1 Kbit size, 1.7–5.5V range, and 400 kHz I²C; different WP logic (active-low enable) and no half-array protection | Lacks hardware-based memory segmentation; requires firmware-managed write locking for critical data zones | Choose when full-array flexibility is needed and WP pin usage differs; confirm SDA/SCL timing margins match system bus loading. |
Compared with 24LC01BHT-E/MNY, the 24AA01HT-I/MNY offers lower-voltage operation but lacks automotive qualification, while the AT24C01D-SSHM-T provides broader voltage range but omits half-array hardware write-protection - making 24LC01BHT-E/MNY uniquely suited for safety-critical, temperature-extreme, and segmented-data applications.
Availability
24LC01BHT-E/MNY is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor calibration systems, and medical device configuration storage requiring stable component supply across extended temperature and long product lifecycles.
Supply support for 24LC01BHT-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 devices, and memory solutions, headquartered in Chandler, Arizona, with global design, manufacturing, and support infrastructure.
The 24LC01BHT-E/MNY belongs to Microchip's 24LCxxB family of I²C serial EEPROMs, engineered specifically for automotive and industrial applications demanding extended temperature operation, high reliability, and hardware-enforced data protection.
FAQ
What is the operating voltage range of the 24LC01BHT-E/MNY?
The 24LC01BHT-E/MNY operates from 2.5V to 5.5V DC. This range ensures compatibility with both 3.3V and 5V microcontroller I/O domains without level translation. Operation below 2.5V is not supported - unlike the 24AA01H variant, which starts at 1.7V. The device includes internal VCC monitoring that inhibits write operations below ~1.5V to prevent data corruption during brown-out events.
Does the 24LC01BHT-E/MNY support page writes, and what is the page size?
Yes, the 24LC01BHT-E/MNY supports page writes with an 8-byte page buffer. Up to eight consecutive bytes can be loaded into the buffer and written to memory in a single internal cycle (typical 3 ms). Page boundaries align to addresses divisible by 8 (e.g., 00h–07h, 08h–0Fh); crossing a boundary causes wraparound within the current page - firmware must enforce alignment to avoid unintended overwrites.
How does the WP pin function on the 24LC01BHT-E/MNY?
On the 24LC01BHT-E/MNY, the WP pin enables hardware write-protection for the upper half of memory (addresses 40h–7Fh) when pulled high (VCC). When tied to VSS, full-array read/write access is enabled. Unlike some EEPROMs, WP does not disable all writes - only the designated 64-byte segment - allowing simultaneous protected and user-writable regions in the same device.
Is the 24LC01BHT-E/MNY qualified for automotive applications?
Yes, the 24LC01BHT-E/MNY carries the "E" temperature grade, certified for operation from −40°C to +125°C and qualified per AEC-Q100 requirements for automotive electronics. Its DFN package (MNY) supports reflow profiles compliant with J-STD-020, and its 4 kV HBM ESD rating meets automotive board-level robustness standards.
What package type is used for the 24LC01BHT-E/MNY, and are the pins lead-free?
The 24LC01BHT-E/MNY uses the 8-lead Plastic Dual Flat, No Lead (DFN) package designated "MNY", with dimensions 2.0 mm × 3.0 mm × 0.55 mm and wettable flank leads. It is Pb-free and RoHS compliant, with Matte Tin (Sn) plating per JEDEC standards. The package marking includes "24LC01BHT" followed by temperature grade "E" and date code.
24LC01BHT-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:
- 1Kbit
- Memory Organization:
- 128 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
24LC01BHT-E/MNY FAQ
1.How can I place an order for 24LC01BHT-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC01BHT-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 24LC01BHT-E/MNY reliable?
The price and inventory of 24LC01BHT-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 24LC01BHT-E/MNY is usually 5 days.
3.What payment methods are accepted for 24LC01BHT-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC01BHT-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC01BHT-E/MNY?
24LC01BHT-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC01BHT-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 24LC01BHT-E/MNY?
For technical support, including 24LC01BHT-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC01BHT-E/MNY requirements.
6.How does Aetrix verify that 24LC01BHT-E/MNY is sourced from the original manufacturer or authorized distributors?
All 24LC01BHT-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 24LC01BHT-E/MNY meets industry standards.
7.What is the process for return or replacement of 24LC01BHT-E/MNY?
All 24LC01BHT-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24LC01BHT-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 24LC01BHT-E/MNY part is unused and in its original packaging.
Return procedure for 24LC01BHT-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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