Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Memory > Memory

Microchip Technology 24LC01BHT-I/MNY

Name: 24LC01BHT-I/MNY
Brand: Microchip Technology
SKU: 24LC01BHT-I/MNY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 24LC01BHT-I/MNY

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-WFDFN Exposed Pad

Datasheet:: 24LC01BHT-I/MNY.pdf

Description:: IC EEPROM 1KBIT I2C 400KHZ 8TDFN

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,242

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

24LC01BHT-I/MNY from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM designed for low-voltage embedded system configuration storage. It operates from 2.5V to 5.5V, supports 400 kHz I²C clock rate (100 kHz below 2.5V), features hardware write-protection for the upper half-array (40h–7Fh), and delivers ≤1 μA standby current at industrial temperature (−40°C to +85°C). It is used in power meter calibration data retention, printer consumable authentication, and industrial sensor node parameter storage.

For engineers reviewing the 24LC01BHT-I/MNY datasheet, 24LC01BHT-I/MNY pinout, 24LC01BHT-I/MNY application, or 24LC01BHT-I/MNY equivalent, this page provides verified electrical specs, package mapping to 8-lead DFN (MNY), validated I²C timing constraints, confirmed half-array write-protect behavior, and two field-tested alternative parts with documented functional trade-offs.

Technical Context

The 24LC01BHT-I/MNY implements a fixed 128-word × 8-bit memory array accessed via standard I²C protocol with slave address prefix '1010' and R/W bit. Its internal address pointer auto-increments during sequential reads and page writes, supporting up to 8-byte page writes with wraparound protection at physical page boundaries (00h–07h, 08h–0Fh, etc.).

It integrates Schmitt-trigger inputs on SDA/SCL with ≥50 ns spike suppression and hysteresis of 0.05×VCC, plus output slope control to suppress ground bounce. Write cycles complete in ≤5 ms, and endurance exceeds 1 million erase/write cycles with >200 years data retention at 25°C.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	1 Kbit (128 × 8-bit), organized as single block - enables compact firmware parameter storage without external address decoding logic.
VCC Operating Range	2.5V to 5.5V - compatible with 3.3V and 5V microcontroller I/O domains; not rated below 2.5V unlike 24AA01H variants.
I²C Clock Frequency	Up to 400 kHz (≥2.5V); 100 kHz only if VCC < 2.5V - defines maximum bus throughput and limits minimum SCL pull-up resistor value.
Write Cycle Time	≤5 ms (byte or page) - determines minimum inter-write delay; page write supports burst loading of up to 8 bytes per cycle.
Write-Protect Scope	Hardware-enabled protection of addresses 40h–7Fh when WP = VCC - isolates critical calibration or security data from accidental overwrites.
Endurance & Retention	1 million erase/write cycles; >200 years data retention at 25°C - suitable for infrequently updated but mission-critical nonvolatile storage.
Standby Current	≤1 μA at TA = −40°C to +85°C - minimizes quiescent power in battery-backed or energy-harvesting systems.

Pinout & Package

24LC01BHT-I/MNY is packaged in an 8-lead Plastic Dual Flat, No Lead (DFN) with exposed thermal pad (MNY suffix), measuring 3.0 mm × 3.0 mm × 0.55 mm (JEDEC MO-229, variant WDDB). Pin 1 is marked by a dot; pins are numbered counterclockwise starting from top-left corner when viewed top-side with marking visible.

Pin/Terminal	Circuit Role	Design Meaning
A0, A1, A2	Not connected (NC)	No internal bond; may be left floating or tied to VSS/VCC - eliminates need for external address selection resistors.
VSS	Ground reference	Primary return path for all internal circuitry; must be low-impedance connection to system GND plane.
SDA	Serial Data I/O	Open-drain bidirectional bus line requiring external pull-up (2 kΩ typical for 400 kHz); carries address, data, and ACK/NACK signals.
SCL	Serial Clock input	Master-generated clock synchronizing all I²C transfers; Schmitt-trigger input ensures noise immunity on rising/falling edges.
WP	Write-Protect control	Logic-high (VCC) enables half-array protection (40h–7Fh); logic-low (VSS) enables full-array read/write access.
VCC	Power supply	2.5V–5.5V supply input; includes internal VCC threshold detector disabling writes below ~1.5V to prevent data corruption.

Key Features

Feature	Design Value
Half-array hardware write-protection	Physically blocks writes to upper 512 bits (40h–7Fh) when WP = VCC - prevents corruption of factory-set calibration or security keys without software intervention.
Schmitt-trigger SDA/SCL inputs	Hysteresis ≥0.05×VCC and 50 ns spike suppression - rejects EMI and contact bounce in industrial environments without external RC filtering.
Page write capability (8-byte buffer)	Reduces I²C transaction overhead by bundling up to 8 sequential bytes into one Stop-initiated write cycle - improves firmware update efficiency.
Low-power operation	1 μA max standby current and 1 mA max active read current at 5.5V - extends battery life in portable or remote-sensor applications.
I²C bus compatibility	Fully compliant with Philips I²C specification (100/400 kHz modes, Start/Stop, ACK polling, 7-bit addressing) - interoperable with standard MCU I²C peripherals.

Applications

Smart Energy Metering	Industrial PLC Configuration
Use Scenario: Storing tariff tables, meter calibration coefficients, and tamper-event logs in utility-grade electricity meters operating unattended for 15+ years. IC Role / Device Role / Timing Role: Nonvolatile configuration store interfaced directly to metering SoC's I²C port; retains data across power loss and thermal cycling. Use Value: Hardware write-protect (WP = VCC) safeguards calibration constants from firmware bugs or malicious writes, ensuring metrological integrity.	Use Scenario: Holding I/O mapping tables, PID loop parameters, and firmware version identifiers in modular programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Persistent settings register accessed during boot and runtime reconfiguration; supports hot-swap module identification via I²C address. Use Value: 1 million write cycles enable daily parameter tuning over 27 years; 400 kHz I²C allows fast configuration load during startup sequence.
Printer Cartridge Authentication	Medical Sensor Calibration
Use Scenario: Embedding OEM ink/toner cartridge ID, remaining page count, and usage history in consumables for laser and inkjet printers. IC Role / Device Role / Timing Role: Secure identity token read/written by printer mainboard during cartridge insertion; uses I²C address '1010xxx0' for device enumeration. Use Value: Small 3×3 mm DFN (MNY) footprint fits constrained cartridge PCB space; low 1 μA standby current avoids draining cartridge battery.	Use Scenario: Storing factory-trimmed offset/gain coefficients and sensor linearization tables in handheld pulse oximeters and glucose monitors. IC Role / Device Role / Timing Role: Calibration vault accessed once per power-on by ADC controller; data retained across patient-use cycles and sterilization. Use Value: >200-year data retention guarantees accuracy over product lifetime; write-protection prevents accidental overwrite during field recalibration.

Smart Energy Metering

Industrial PLC Configuration

Use Scenario: Storing tariff tables, meter calibration coefficients, and tamper-event logs in utility-grade electricity meters operating unattended for 15+ years.

IC Role / Device Role / Timing Role: Nonvolatile configuration store interfaced directly to metering SoC's I²C port; retains data across power loss and thermal cycling.

Use Value: Hardware write-protect (WP = VCC) safeguards calibration constants from firmware bugs or malicious writes, ensuring metrological integrity.

Use Scenario: Holding I/O mapping tables, PID loop parameters, and firmware version identifiers in modular programmable logic controllers deployed in factory automation.

IC Role / Device Role / Timing Role: Persistent settings register accessed during boot and runtime reconfiguration; supports hot-swap module identification via I²C address.

Use Value: 1 million write cycles enable daily parameter tuning over 27 years; 400 kHz I²C allows fast configuration load during startup sequence.

Printer Cartridge Authentication

Medical Sensor Calibration

Use Scenario: Embedding OEM ink/toner cartridge ID, remaining page count, and usage history in consumables for laser and inkjet printers.

IC Role / Device Role / Timing Role: Secure identity token read/written by printer mainboard during cartridge insertion; uses I²C address '1010xxx0' for device enumeration.

Use Value: Small 3×3 mm DFN (MNY) footprint fits constrained cartridge PCB space; low 1 μA standby current avoids draining cartridge battery.

Use Scenario: Storing factory-trimmed offset/gain coefficients and sensor linearization tables in handheld pulse oximeters and glucose monitors.

IC Role / Device Role / Timing Role: Calibration vault accessed once per power-on by ADC controller; data retained across patient-use cycles and sterilization.

Use Value: >200-year data retention guarantees accuracy over product lifetime; write-protection prevents accidental overwrite during field recalibration.

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 vs. 2.5V); identical pinout, capacity, and I²C interface - but not drop-in due to voltage range mismatch.	Required where system operates down to 1.7V (e.g., coin-cell powered devices); unsuitable for 2.5V-only rails.	Select 24AA01HT-I/MNY only if VCC can dip below 2.5V; otherwise 24LC01BHT-I/MNY ensures guaranteed operation across full 2.5–5.5V range.
AT24C01D-SSHM-T	Same 1 Kbit size, 2.5–5.5V range, and 400 kHz I²C, but uses different write-protect scheme (software-configurable block lock) and lacks Schmitt-trigger inputs.	Better suited for designs needing flexible software-controlled protection; less robust in noisy industrial buses without external filtering.	Choose AT24C01D-SSHM-T when dynamic lock/unlock of memory blocks is required; retain 24LC01BHT-I/MNY for deterministic hardware-level protection and noise immunity.

Compared with 24AA01HT-I/MNY and AT24C01D-SSHM-T, the 24LC01BHT-I/MNY offers guaranteed 2.5V operation and superior noise immunity via Schmitt triggers - making it optimal for stable industrial I²C buses where voltage margin and EMI resilience are prioritized over ultra-low-voltage flexibility or software-configurable locks.

Availability

24LC01BHT-I/MNY is available at Aetrix Electronics and suitable for smart metering, industrial PLCs, medical sensor calibration, and printer consumable authentication requiring stable component supply across extended product lifecycles.

Supply support for 24LC01BHT-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 24LC01BHT-I/MNY belongs to Microchip's 24LCxxB serial EEPROM family, engineered for reliable, low-power nonvolatile storage in cost-sensitive industrial and consumer systems where I²C simplicity and hardware write security are essential.

FAQ

What is the minimum VCC voltage required for reliable operation of the 24LC01BHT-I/MNY?

The 24LC01BHT-I/MNY requires a minimum VCC of 2.5V for guaranteed operation across its full temperature range (−40°C to +85°C). Unlike the 24AA01H series, it is not characterized below 2.5V; attempting operation at 1.8V may result in undefined behavior or failed writes. The internal VCC threshold detector disables write logic below ~1.5V to prevent data corruption, but read functionality is also not assured below 2.5V per datasheet specifications.

How does the hardware write-protect feature work on the 24LC01BHT-I/MNY?

When the WP pin of the 24LC01BHT-I/MNY is tied to VCC, writes to memory addresses 40h through 7Fh (upper 512 bits) are inhibited; reads remain fully functional. If WP is tied to VSS or left floating, full-array read/write access is enabled. This protection is implemented at the silicon level and cannot be overridden by I²C commands - providing deterministic, fail-safe safeguarding of critical calibration or security data.

Can the 24LC01BHT-I/MNY be used in a 400 kHz I²C bus with standard 10 kΩ pull-up resistors?

No - for reliable 400 kHz operation, the 24LC01BHT-I/MNY requires stronger pull-up resistors (typically 2 kΩ) on both SDA and SCL lines. The datasheet specifies 10 kΩ only for 100 kHz mode. Using 10 kΩ at 400 kHz risks violating rise-time requirements (TR ≤ 300 ns at VCC ≥ 2.5V), leading to communication failures or intermittent ACK errors. Always verify bus timing with oscilloscope measurements when selecting pull-up values.

What is the physical package type and dimensions of the 24LC01BHT-I/MNY?

The 24LC01BHT-I/MNY uses an 8-lead Plastic Dual Flat, No Lead (DFN) package designated MNY, conforming to JEDEC MO-229 variant WDDB. Its footprint measures 3.0 mm × 3.0 mm with 0.5 mm pitch, body height 0.55 mm, and includes an exposed thermal pad centered on the bottom surface. Pin 1 is marked by a dot located near the top-left corner when viewed top-side with part marking visible.

Does the 24LC01BHT-I/MNY support page write operations, and what is the maximum byte count per page?

Yes, the 24LC01BHT-I/MNY supports page write operations with a maximum of 8 bytes per page. The internal page buffer accepts up to 8 sequential bytes before a Stop condition initiates the internal write cycle. Attempting to write more than 8 bytes without issuing Stop causes address wraparound within the same physical page (e.g., writing to 06h–0Eh wraps to 00h–06h), not automatic advancement to the next page - application firmware must enforce page boundaries.

24LC01BHT-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:: 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)

24LC01BHT-I/MNY FAQ

1.How can I place an order for 24LC01BHT-I/MNY through Aetrix?

Please submit a Request for Quotation (RFQ) for 24LC01BHT-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 24LC01BHT-I/MNY reliable?

The price and inventory of 24LC01BHT-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 24LC01BHT-I/MNY is usually 5 days.

3.What payment methods are accepted for 24LC01BHT-I/MNY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC01BHT-I/MNY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 24LC01BHT-I/MNY?

24LC01BHT-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 24LC01BHT-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 24LC01BHT-I/MNY?

For technical support, including 24LC01BHT-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC01BHT-I/MNY requirements.

6.How does Aetrix verify that 24LC01BHT-I/MNY is sourced from the original manufacturer or authorized distributors?

All 24LC01BHT-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 24LC01BHT-I/MNY meets industry standards.

7.What is the process for return or replacement of 24LC01BHT-I/MNY?

All 24LC01BHT-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24LC01BHT-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 24LC01BHT-I/MNY part is unused and in its original packaging.

Return procedure for 24LC01BHT-I/MNY:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…