My Inquiry
My Account
Microchip Technology 24LC00T-I/OT
- Part No.:
- 24LC00T-I/OT
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- SC-74A, SOT-753
- Datasheet:
-
24LC00T-I/OT.pdf
- Description:
- IC EEPROM 128BIT I2C SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:22,601
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
24LC00T-I/OT from Microchip Technology Inc. is a 128-bit (16 × 8) I²C-compatible serial EEPROM designed for low-power, space-constrained embedded systems. It operates from 2.5V to 5.5V, draws only 500 µA typical read current and 100 nA standby current, and supports 100 kHz / 400 kHz clock rates. It is used for storing calibration data, device IDs, or manufacturing traceability in industrial sensor modules and portable instrumentation.
For engineers reviewing the 24LC00T-I/OT datasheet, 24LC00T-I/OT pinout, 24LC00T-I/OT application, or 24LC00T-I/OT equivalent, key selection criteria include its SOT-23-5 package footprint, 2.5V minimum VCC, 100 nA standby current, and guaranteed 1 million write cycles - all critical for battery-powered or thermally constrained designs.
Technical Context
The 24LC00T-I/OT implements a two-wire I²C slave 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 without external address latching.
Write operations are self-timed with a typical 3 ms page write time and automatic erase/write cycle management. The device includes a VCC threshold detector that disables programming below 2.5V, preventing corrupted writes during brown-out conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 128 bits (16 × 8), sufficient for small configuration or ID storage without over-provisioning |
| Supply voltage range | 2.5V to 5.5V - compatible with 3.3V and 5V logic domains, excludes sub-2.5V operation unlike 24AA00 |
| Standby current | 100 nA typical - enables multi-year battery life in always-on monitoring nodes |
| I²C clock support | 100 kHz and 400 kHz - supports standard-mode and fast-mode timing without external clock scaling |
| Endurance | 1 million erase/write cycles - validated for frequent field calibration updates over product lifetime |
| Data retention | 200 years at +85°C - ensures long-term reliability in industrial environments without refresh |
| ESD protection | >4000 V HBM - robust against handling and board-level ESD events in manufacturing and field service |
Pinout & Package
24LC00T-I/OT uses the 5-lead SOT-23 (OT) package - compact (2.9 mm × 1.6 mm × 1.3 mm), surface-mount, and optimized for high-density PCB layouts. Pin 1 is marked with a dot; leads are gull-wing with 0.95 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SCL) | Serial Clock input | Asynchronous edge-triggered input synchronized internally; requires external pull-up; no internal capacitance loading beyond 10 pF |
| 2 (VSS) | Ground reference | Primary return path for all internal circuitry; must be connected directly to system ground plane to maintain noise immunity |
| 3 (SDA) | Serial Data bidirectional I/O | Open-drain output requiring external pull-up (2 kΩ for 400 kHz); supports shared bus arbitration via wired-AND |
| 4 (NC) | No-connect | Internally unconnected silicon pad; must remain floating - no routing or grounding permitted |
| 5 (VCC) | Power supply input | Accepts 2.5–5.5 V; internal regulator stabilizes core logic; decoupling capacitor (100 nF) required within 3 mm |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | 0.05 × VCC hysteresis on SCL/SDA - rejects >50 ns noise spikes without external filtering components |
| Output slope control | Controlled rise/fall times limit di/dt - eliminates ground bounce in mixed-signal PCBs with shared return paths |
| Self-timed write cycle | No external timing or polling required beyond ACK polling - simplifies firmware implementation and reduces CPU overhead |
| Factory programming option | Pre-programmed memory contents available at wafer sort - accelerates production test and eliminates field programming steps |
| Pb-free and RoHS compliant | Meets JEDEC J-STD-609 Category 1 moisture sensitivity (MSL1) - supports lead-free reflow without preconditioning |
Applications
| Industrial Sensor Calibration | Portable Medical Device ID Storage |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in temperature/humidity transmitters. IC Role / Device Role / Timing Role: Nonvolatile configuration store accessed once per power-up via I²C during initialization sequence. Use Value: Eliminates manual calibration per unit; enables traceable, repeatable accuracy across production batches and field replacements. |
Use Scenario: Holding unique device serial number, firmware version, and regulatory certification codes in handheld pulse oximeters. IC Role / Device Role / Timing Role: Secure, tamper-resistant identity register read at boot to enforce software licensing and audit logs. Use Value: Supports FDA UDI compliance and field-service diagnostics without adding MCU flash overhead or security risk. |
| Smart Energy Meter Tamper Logs | Automotive Body Control Module Configuration |
Use Scenario: Recording timestamped tamper events (cover removal, magnetic interference) in utility meters operating for 15+ years. IC Role / Device Role / Timing Role: Low-power event logger with atomic write capability - survives sudden power loss during write cycles. Use Value: Guarantees forensic integrity of tamper history using 1M-cycle endurance and 200-year data retention at 85°C. |
Use Scenario: Storing user-configurable settings (lighting profiles, mirror positions) in automotive door modules with infrequent updates. IC Role / Device Role / Timing Role: Persistent parameter store interfaced via vehicle's I²C-based body network, powered only during ignition-on. Use Value: Maintains personalization across battery disconnects while meeting AEC-Q100 Grade 2 (-40°C to +105°C) thermal requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA00T-I/OT | Lower VCC min = 1.8V; higher standby current (1 µA vs. 100 nA); same 128-bit capacity and SOT-23-5 package | Better suited for ultra-low-voltage battery systems (<2.5V), but trades off standby power efficiency | Select 24AA00T-I/OT only if supply drops below 2.5V; otherwise 24LC00T-I/OT delivers superior power savings. |
| AT24C01C-SSHM-T | 1 Kbit capacity (8× larger); identical 2.5–5.5V range and SOT-23-5 package; 1 µA standby current | Required when more than 128 bits of nonvolatile storage is needed per node, e.g., multi-sensor fusion data | Choose AT24C01C-SSHM-T for scalability; avoid if design strictly requires minimal footprint and lowest quiescent current. |
Compared with 24AA00T-I/OT and AT24C01C-SSHM-T, the 24LC00T-I/OT uniquely balances ultra-low standby current (100 nA), industrial temperature rating (-40°C to +85°C), and minimal 5-pin SOT-23 footprint - making it optimal for cost- and power-sensitive single-parameter storage where memory expansion is unnecessary.
Availability
24LC00T-I/OT is available at Aetrix Electronics and suitable for industrial sensor calibration, portable medical device ID storage, and smart energy meter tamper logs requiring stable component supply across extended product lifecycles.
Supply support for 24LC00T-I/OT 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 24LC00 belongs to Microchip's legacy serial EEPROM product line, engineered specifically for reliable, low-power, small-footprint nonvolatile storage in cost-sensitive industrial and consumer applications.
FAQ
What is the minimum operating voltage for the 24LC00T-I/OT?
The 24LC00T-I/OT requires a minimum supply voltage of 2.5V, as specified in its DC characteristics table. Operation below this threshold disables internal programming logic via a built-in VCC threshold detector, preventing incomplete or corrupted writes during brown-out conditions. This distinguishes it from the 24AA00 variant, which supports down to 1.8V.
Does the 24LC00T-I/OT support both 100 kHz and 400 kHz I²C clock speeds?
Yes, the 24LC00T-I/OT fully supports both standard-mode (100 kHz) and fast-mode (400 kHz) I²C timing specifications across its full operating voltage and temperature range. AC timing parameters including THIGH, TLOW, and TSU:DAT are explicitly characterized for both frequencies in the datasheet, ensuring interoperability with diverse master controllers.
How many write cycles can the 24LC00T-I/OT endure before failure?
The 24LC00T-I/OT is rated for more than one million erase/write cycles, verified through accelerated life testing and process characterization. This endurance specification applies under recommended operating conditions (VCC = 2.5–5.5V, TA = –40°C to +85°C) and ensures long-term reliability in applications requiring frequent field updates, such as calibration logging or usage counters.
What is the function of Pin 4 (NC) on the 24LC00T-I/OT SOT-23 package?
Pin 4 of the 24LC00T-I/OT is designated NC (No Connect) - it is not bonded to any internal circuitry and must remain electrically floating. Routing traces to or placing solder pads under this pin violates Microchip's layout guidelines and may compromise thermal performance or cause unintended coupling. The pin exists solely for mechanical symmetry in the SOT-23-5 mold.
Is the 24LC00T-I/OT RoHS compliant and lead-free?
Yes, the 24LC00T-I/OT is Pb-free and RoHS compliant, with matte tin (Sn) termination per JEDEC J-STD-609. Its MSL1 rating allows standard lead-free reflow profiles without preconditioning, and the package meets IPC/JEDEC standards for moisture sensitivity and thermal cycling durability in high-reliability assembly processes.
24LC00T-I/OT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 128bit
- Memory Organization:
- 16 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 4ms
- 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:
- SOT-23-5
24LC00T-I/OT FAQ
1.How can I place an order for 24LC00T-I/OT through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC00T-I/OT 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 24LC00T-I/OT reliable?
The price and inventory of 24LC00T-I/OT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC00T-I/OT is usually 5 days.
3.What payment methods are accepted for 24LC00T-I/OT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC00T-I/OT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC00T-I/OT?
24LC00T-I/OT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC00T-I/OT 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 24LC00T-I/OT?
For technical support, including 24LC00T-I/OT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC00T-I/OT requirements.
6.How does Aetrix verify that 24LC00T-I/OT is sourced from the original manufacturer or authorized distributors?
All 24LC00T-I/OT 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 24LC00T-I/OT meets industry standards.
7.What is the process for return or replacement of 24LC00T-I/OT?
All 24LC00T-I/OT units undergo pre-shipment inspection (PSI). If there is an issue with 24LC00T-I/OT, 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 24LC00T-I/OT part is unused and in its original packaging.
Return procedure for 24LC00T-I/OT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC00T-I/OT Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
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.
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.
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…
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…
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…
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 …
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…
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…
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…
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…
