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Microchip Technology 24LC01BHT-I/MS
- Part No.:
- 24LC01BHT-I/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24LC01BHT-I/MS.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,821
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Product details
Overview
24LC01BHT-I/MS from Microchip Technology Inc. is a 1 Kbit I²C-compatible serial EEPROM organized as 128 × 8-bit memory, operating from 2.5V to 5.5V with industrial temperature range (−40°C to +85°C), 400 kHz max clock frequency, and hardware write-protect for addresses 40h–7Fh. It serves as nonvolatile configuration storage in embedded control modules, sensor nodes, and power management ICs.
For engineers reviewing the 24LC01BHT-I/MS datasheet, 24LC01BHT-I/MS pinout, 24LC01BHT-I/MS application, or 24LC01BHT-I/MS equivalent, key selection criteria include VCC min (2.5V), half-array write-protection behavior, MSOP-8 package footprint, and 1 μA standby current at I-temp - all critical for low-power, space-constrained designs requiring robust data retention.
Technical Context
The 24LC01BHT-I/MS implements a 2-wire I²C interface with Schmitt-trigger inputs on SDA/SCL for noise immunity and slope-controlled outputs to suppress ground bounce. Its internal address counter supports current-address, random, and sequential read modes, while page-write capability allows up to 8-byte writes per cycle.
Write protection is implemented via the WP pin: tied to VCC, it disables writes to the upper half of memory (40h–7Fh); tied to VSS, full array access is enabled. The device uses an internal HV generator for EEPROM programming and includes a VCC threshold detector that disables erase/write logic below 1.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Kbit (128 × 8-bit) - fits small firmware patches, calibration data, or device ID storage |
| VCC operating range | 2.5V to 5.5V - compatible with 3.3V and 5V systems; not usable below 2.5V |
| Max clock frequency | 400 kHz (at VCC ≥ 2.5V) - enables faster configuration loading vs. legacy 100 kHz EEPROMs |
| Write endurance | 1 million erase/write cycles - supports frequent logging or parameter updates over product lifetime |
| Data retention | 200 years - ensures long-term reliability without refresh in battery-backed or infrequently powered systems |
| Standby current | 1 μA max at −40°C to +85°C - minimizes quiescent drain in always-on IoT edge nodes |
| Page write time | 3 ms typical - defines minimum interval between successive page writes in firmware sequencing |
Pinout & Package
24LC01BHT-I/MS is supplied in an 8-lead MSOP package (3.0 mm × 3.0 mm × 1.0 mm body height). Pin 1 is marked by a beveled corner; pin numbering follows standard MSOP convention (counterclockwise from mark).
| 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 |
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance to ensure noise immunity during I²C communication |
| SDA | Serial data I/O | Open-drain bidirectional bus line requiring external pull-up (2 kΩ typical for 400 kHz) |
| SCL | Serial clock input | Master-generated timing signal; Schmitt trigger input ensures reliable edge detection on noisy boards |
| WP | Hardware write-protect control | Logic-high disables writes to upper half (40h–7Fh); logic-low enables full-array access |
| VCC | Power supply | Accepts 2.5V–5.5V; internal voltage detector prevents writes if VCC drops below 1.5V |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs on SDA/SCL | Enables reliable I²C operation in electrically noisy environments (e.g., motor drives, power supplies) |
| Output slope control | Reduces ground bounce and EMI during signal transitions - critical for mixed-signal PCB layouts |
| Half-array hardware write-protect | Allows safe storage of immutable parameters (e.g., calibration constants) while permitting runtime updates to volatile settings |
| ESD protection >4 kV | Meets IEC 61000-4-2 Level 3 - reduces risk of field failure during handling or system integration |
| Factory programmable option | Supports pre-programming of device-specific data (e.g., MAC address, serial number) before board assembly |
Applications
| Industrial Sensor Calibration | Smart Meter Configuration Storage |
|---|---|
|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding trim values accessed at power-up by MCU firmware. Use Value: Eliminates need for external trimming components and enables field recalibration via I²C without firmware update. |
Use Scenario: Retaining tariff tables, billing counters, and communication protocol settings in utility-grade electricity meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for metering parameters updated infrequently but requiring 200-year data integrity. Use Value: Meets ANSI C12.1 and IEC 62056 requirements for long-term data retention under wide temperature cycling. |
| Embedded Power Supply Sequencing | IoT Edge Node Identity Storage |
|
Use Scenario: Holding boot-order delay values and rail-enable thresholds for multi-rail DC/DC converters in telecom baseband cards. IC Role / Device Role / Timing Role: Configuration memory read early in power-on reset sequence to configure PMIC timing registers. Use Value: Enables flexible, field-upgradable power sequencing without modifying hardware or re-spinning PCBs. |
Use Scenario: Storing unique device identifiers (e.g., IEEE EUI-48), TLS certificate fingerprints, and secure boot keys in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Tamper-evident identity vault accessed only during secure boot and TLS handshake initialization. Use Value: Supports zero-touch provisioning and cryptographic attestation while consuming <1 μA in standby. |
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/MS | Lower VCC min (1.7V); identical pinout, memory map, and timing | Better suited for single-cell Li-ion or energy-harvesting systems where supply dips below 2.5V | Select when operating below 2.5V is required; otherwise 24LC01BHT-I/MS offers tighter VCC tolerance margin at 2.5V+ rails |
| AT24C01D-MAHM-T | Same 1 Kbit size, 2.5V–5.5V range, MSOP-8, but rated for automotive AEC-Q100 Grade 2 (−40°C to +105°C) | Validated for automotive infotainment and body electronics where extended temp validation is mandated | Choose when AEC-Q100 compliance is contractually required; 24LC01BHT-I/MS meets industrial but not automotive qualification |
Compared with 24AA01HT-I/MS and AT24C01D-MAHM-T, the 24LC01BHT-I/MS provides optimal balance of industrial-grade reliability, 400 kHz speed, and MSOP-8 footprint for cost-sensitive embedded systems where sub-2.5V operation or automotive qualification are not needed.
Availability
24LC01BHT-I/MS is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter configuration storage, and embedded power supply sequencing requiring stable component supply across multi-year production cycles.
Supply support for 24LC01BHT-I/MS 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 and manufacturing operations.
The 24LC01BHT-I/MS belongs to Microchip's 24LCxx family of I²C serial EEPROMs, designed specifically for low-voltage, low-power embedded systems requiring reliable nonvolatile storage in space-constrained industrial and consumer applications.
FAQ
What is the minimum VCC required for reliable operation of the 24LC01BHT-I/MS?
The 24LC01BHT-I/MS 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 writes, corrupted reads, or failure to acknowledge I²C commands. This differs from the 24AA01H series, which supports down to 1.7V.
How does the WP pin function on the 24LC01BHT-I/MS?
On the 24LC01BHT-I/MS, the WP pin enables hardware write-protection: when tied to VCC, writes to memory addresses 40h–7Fh are inhibited while reads remain fully functional; when tied to VSS, full-array read/write access is enabled. The pin has no effect on addresses 00h–3Fh regardless of WP state.
What is the maximum supported I²C clock frequency for the 24LC01BHT-I/MS?
The 24LC01BHT-I/MS supports up to 400 kHz I²C clock frequency when VCC is 2.5V or higher. At VCC < 2.5V, the device is not rated for operation - unlike the 24AA01H variant, which supports 100 kHz down to 1.7V. This 400 kHz capability enables faster configuration loading in time-critical boot sequences.
Can the 24LC01BHT-I/MS be used in place of the 24LC01B-I/MS?
Yes - the 24LC01BHT-I/MS is the tape-and-reel version of the 24LC01B-I/MS, sharing identical electrical specifications, pinout, memory organization, and MSOP-8 package. The "T" suffix denotes packaging format only; both parts are functionally and mechanically interchangeable in PCB layout and firmware.
Does the 24LC01BHT-I/MS support page writes, and what is the page size?
Yes, the 24LC01BHT-I/MS supports page writes of up to 8 bytes per operation. The page buffer size is 8 bytes, and physical page boundaries align to addresses divisible by 8 (e.g., 00h–07h, 08h–0Fh). Crossing a boundary during a page write causes wraparound within the same page, not automatic advancement to the next page.
24LC01BHT-I/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
24LC01BHT-I/MS FAQ
1.How can I place an order for 24LC01BHT-I/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC01BHT-I/MS 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-I/MS reliable?
The price and inventory of 24LC01BHT-I/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC01BHT-I/MS is usually 5 days.
3.What payment methods are accepted for 24LC01BHT-I/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC01BHT-I/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC01BHT-I/MS?
24LC01BHT-I/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC01BHT-I/MS 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-I/MS?
For technical support, including 24LC01BHT-I/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC01BHT-I/MS requirements.
6.How does Aetrix verify that 24LC01BHT-I/MS is sourced from the original manufacturer or authorized distributors?
All 24LC01BHT-I/MS 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-I/MS meets industry standards.
7.What is the process for return or replacement of 24LC01BHT-I/MS?
All 24LC01BHT-I/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24LC01BHT-I/MS, 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-I/MS part is unused and in its original packaging.
Return procedure for 24LC01BHT-I/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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