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Microchip Technology 24LC01BT-I/MNY
- Part No.:
- 24LC01BT-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24LC01BT-I/MNY.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,069
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Product details
Overview
24LC01BT-I/MNY from Microchip Technology Inc. is a 1 Kbit I²C-compatible serial EEPROM organized as 128 × 8-bit memory with hardware write-protection, 8-byte page buffer, and industrial temperature range (–40°C to +85°C). It operates from 2.5V to 5.5V, supports up to 400 kHz clock frequency, and delivers ≤1 µA standby current - ideal for low-power embedded systems requiring nonvolatile parameter storage.
For engineers reviewing the 24LC01BT-I/MNY datasheet, 24LC01BT-I/MNY pinout, 24LC01BT-I/MNY application, or 24LC01BT-I/MNY equivalent, key selection considerations include VCC min/max compliance (2.5V–5.5V), I²C timing at 400 kHz, WP pin functionality for hardware-level write protection, and MNY package compatibility with space-constrained PCB layouts.
Technical Context
The 24LC01BT-I/MNY implements a standard two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal address pointer enables current-address, random, and sequential read modes, while the 8-byte page buffer supports efficient multi-byte writes within a single physical page boundary (00h–07h, 08h–0Fh, etc.).
Write operations are self-timed with a maximum 5 ms cycle time and support both byte and page write protocols. Hardware write-protection is enforced via the WP pin: tied to VSS for full read/write access, or VCC to lock the entire 128-byte array (addresses 00h–7Fh) against accidental overwrites.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit), sufficient for calibration data, device IDs, or configuration registers in compact systems |
| VCC Range | 2.5V to 5.5V - requires stable mid-to-high voltage rail; not suitable for sub-2.5V battery-powered designs |
| Max Clock Frequency | 400 kHz - supports fast I²C mode but not high-speed (1 MHz) or standard-mode-only (100 kHz) only buses |
| Page Write Buffer | 8 bytes - limits atomic writes to one page; crossing page boundaries wraps data instead of advancing |
| Write Cycle Time | ≤5 ms - defines minimum interval between write commands; impacts firmware polling or timeout design |
| Endurance | 1,000,000 erase/write cycles - ensures long-term reliability in field-updatable applications |
| Data Retention | >200 years - guarantees nonvolatile storage integrity across product lifetime without refresh |
Pinout & Package
24LC01BT-I/MNY is supplied in an 8-lead DFN (2 mm × 3 mm, 0.5 mm pitch) package with exposed pad. Pin 1 = A0 (NC), Pin 2 = A1 (NC), Pin 3 = A2 (NC), Pin 4 = VSS, Pin 5 = SDA, Pin 6 = SCL, Pin 7 = WP, Pin 8 = VCC. The exposed pad may be connected to VSS or left floating per layout requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | No-connect (NC) | Internally unconnected; may be left floating or tied to VSS/VCC with no functional impact |
| VSS | Ground reference | Primary return path for all internal circuitry and I/O; must be low-impedance for noise immunity |
| 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 clock synchronizing all data transfers; Schmitt-trigger input rejects noise |
| WP | Hardware write-protect control | Logic-high disables all writes to entire memory array; critical for preventing firmware corruption |
| VCC | Power supply | Must remain within 2.5V–5.5V during operation; decoupling capacitor (0.1 µF) required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables robust I²C communication on noisy PCBs or long traces by rejecting sub-threshold glitches |
| Output slope control | Reduces EMI and ground bounce during SDA/SCL transitions, improving signal integrity |
| Hardware write-protection | Prevents unintended writes during power-up/down or firmware faults without software overhead |
| 1 µA max standby current | Supports ultra-low-power sleep modes in battery-backed or energy-harvesting systems |
| ESD protection >4 kV | Meets IEC 61000-4-2 Level 2, reducing need for external TVS diodes in many industrial environments |
Applications
| Smart Meter Calibration Storage | Industrial PLC Configuration Memory |
|---|---|
Use Scenario: Storing meter-specific calibration coefficients and tariff tables that must survive power loss and field updates. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed via I²C during initialization or firmware update. Use Value: 1,000,000 write cycles and >200-year data retention ensure accuracy over 15+ year meter lifetime without refresh. | Use Scenario: Holding user-defined I/O mapping, alarm thresholds, and communication settings in programmable logic controllers. IC Role / Device Role / Timing Role: Persistent configuration register bank accessible over industrial I²C bus at 400 kHz. Use Value: Hardware WP pin prevents runtime corruption during brown-out or reset sequences. |
| Medical Sensor Module ID | Automotive Body Control Unit Settings |
Use Scenario: Storing unique sensor module identifiers, manufacturing date, and calibration timestamps in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-power I²C slave storing immutable device identity and traceability data. Use Value: 1 µA standby current extends battery life in handheld instruments; RoHS-compliant MNY package meets medical safety standards. | Use Scenario: Saving user preferences (mirror position, seat memory, lighting profiles) in automotive body control modules. IC Role / Device Role / Timing Role: Automotive-grade EEPROM interfacing with microcontroller I²C peripheral under wide temperature swing. Use Value: Industrial temperature range (–40°C to +85°C) and AEC-Q100 qualification ensure reliability in under-hood environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA01T-I/MNY | Lower VCC min (1.7V), same 400 kHz max, identical MNY package and pinout | Better suited for 1.8V/2.5V systems; not rated for 2.5V-only operation like 24LC01B | Select when system VCC can dip below 2.5V; verify timing margins at 1.7V–2.4V |
| AT24C01D-SSHM-T | Same 1 Kbit size, 1.7V–5.5V VCC, 1 MHz max clock, SOIC-8 package (not DFN) | Higher speed and wider voltage range, but different footprint and thermal profile | Choose for faster I²C throughput or legacy SOIC layout reuse; requires PCB redesign for MNY |
Compared with 24AA01T-I/MNY, the 24LC01BT-I/MNY trades lower-voltage operation for guaranteed 2.5V startup and tighter industrial temp spec; versus AT24C01D-SSHM-T, it offers smaller DFN packaging and proven Microchip ecosystem integration but at reduced clock speed.
Availability
24LC01BT-I/MNY is available at Aetrix Electronics and suitable for smart meter calibration storage, industrial PLC configuration memory, and medical sensor module ID applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for 24LC01BT-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, serving industrial, automotive, and consumer markets with vertically integrated silicon and development tools.
The 24LC01B family is designed for cost-sensitive, space-constrained embedded systems needing reliable, low-power serial EEPROM with hardware write protection and industrial temperature operation.
FAQ
What is the minimum operating voltage for 24LC01BT-I/MNY?
The 24LC01BT-I/MNY requires a minimum VCC of 2.5V, as specified in its electrical characteristics table. Operation below this voltage is not guaranteed and may result in failed writes, corrupted reads, or undefined behavior. This distinguishes it from the 24AA01 variant, which supports down to 1.7V. Always maintain VCC within 2.5V–5.5V for reliable 24LC01BT-I/MNY operation.
Does 24LC01BT-I/MNY support 1 MHz I²C clock frequency?
No, the 24LC01BT-I/MNY supports a maximum clock frequency of 400 kHz under all valid VCC conditions (2.5V–5.5V). While the 24FC01 variant in the same family supports 1 MHz, the 24LC01B series - including 24LC01BT-I/MNY - is limited to 400 kHz. Attempting 1 MHz operation will cause timing violations and communication failure.
How does the WP pin function on 24LC01BT-I/MNY?
The WP (Write-Protect) pin on 24LC01BT-I/MNY provides hardware-level memory locking: when tied to VCC, all write operations to the full 128-byte array (00h–7Fh) are inhibited, while reads remain fully functional. When tied to VSS, normal read/write access is enabled. This feature prevents accidental overwrites during power transitions or firmware errors - a critical safeguard in mission-critical 24LC01BT-I/MNY deployments.
What package type is used for 24LC01BT-I/MNY?
The 24LC01BT-I/MNY uses an 8-lead DFN (Dual Flat No-lead) package designated as MNY, measuring 2 mm × 3 mm with 0.5 mm lead pitch and an exposed thermal pad. This compact, surface-mount package supports high-density PCB layouts and offers improved thermal performance over SOIC or PDIP variants - confirmed by Microchip's packaging documentation and marking code "MNY" in the device selection table.
Can 24LC01BT-I/MNY be used in automotive applications?
Yes, the 24LC01BT-I/MNY is AEC-Q100 qualified for automotive applications and rated for industrial temperature range (–40°C to +85°C), making it suitable for body control modules, infotainment peripherals, and sensor subsystems. However, it is not qualified for under-hood engine control units requiring extended temperature grade (–40°C to +125°C); for those, the 24LC01BE variant would be appropriate. Always verify ambient thermal profile before deploying 24LC01BT-I/MNY in automotive systems.
24LC01BT-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:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 3.5 µs
- 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)
24LC01BT-I/MNY FAQ
1.How can I place an order for 24LC01BT-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC01BT-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 24LC01BT-I/MNY reliable?
The price and inventory of 24LC01BT-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 24LC01BT-I/MNY is usually 5 days.
3.What payment methods are accepted for 24LC01BT-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC01BT-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC01BT-I/MNY?
24LC01BT-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC01BT-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 24LC01BT-I/MNY?
For technical support, including 24LC01BT-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC01BT-I/MNY requirements.
6.How does Aetrix verify that 24LC01BT-I/MNY is sourced from the original manufacturer or authorized distributors?
All 24LC01BT-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 24LC01BT-I/MNY meets industry standards.
7.What is the process for return or replacement of 24LC01BT-I/MNY?
All 24LC01BT-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24LC01BT-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 24LC01BT-I/MNY part is unused and in its original packaging.
Return procedure for 24LC01BT-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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