My Inquiry
My Account
Microchip Technology 24LC02BT-I/SN
- Part No.:
- 24LC02BT-I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24LC02BT-I/SN.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,138
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
24LC02BT-I/SN from Microchip Technology Inc. is a 2-Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory with hardware write-protection, 400 kHz max clock frequency, and industrial temperature range (–40°C to +85°C). It operates from 2.5V to 5.5V, supports page writes up to 8 bytes, and is used for configuration storage in embedded controllers and sensor modules.
For engineers reviewing the 24LC02BT-I/SN datasheet, 24LC02BT-I/SN pinout, 24LC02BT-I/SN application, or 24LC02BT-I/SN equivalent, key selection criteria include VCC range compatibility (2.5–5.5V), I²C timing compliance at 400 kHz, WP pin functionality for hardware-level write protection, and SOIC-8 package suitability for space-constrained PCB layouts.
Technical Context
The 24LC02BT-I/SN implements a 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 without external address latching.
Write operations are self-timed with a maximum 5 ms cycle time; page writes buffer up to 8 bytes before initiating erase/write. The device uses an open-drain SDA bus requiring external pull-up resistors (2 kΩ typical for 400 kHz) and supports acknowledge polling to detect write completion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), sufficient for firmware revision IDs, calibration data, or device serial numbers |
| VCC Range | 2.5V to 5.5V - compatible with 3.3V and 5V logic systems without level shifting |
| Max Clock Frequency | 400 kHz - supports standard-mode I²C with timing margins per Table 1-2 |
| Page Write Buffer | 8 bytes - reduces I²C transaction count when updating multi-byte parameters |
| Write Cycle Time | 5 ms maximum - defines minimum interval between write commands during burst updates |
| Endurance | 1 million erase/write cycles - ensures long-term reliability in field-updatable systems |
| Data Retention | 200 years - guarantees nonvolatile storage integrity over product lifetime |
Pinout & Package
24LC02BT-I/SN is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) with 150 mil body width, compliant with JEDEC MS-012. Pin 1 is marked by a beveled corner or dot; the package is RoHS-compliant and rated for industrial temperature operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No internal connection; may be left floating or tied to VSS/VCC without affecting operation |
| A1 | Address Input | No internal connection; unused per device architecture |
| A2 | Address Input | No internal connection; not part of client address decoding |
| VSS | Ground | Reference node for all digital and analog circuitry; must be low-impedance |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up resistor (2 kΩ typical) |
| SCL | Serial Clock Input | Input-only synchronous clock; controls timing of all read/write transfers |
| WP | Write-Protect Input | Hardware lock: tied to VCC disables all writes; tied to VSS enables full read/write access |
| VCC | Power Supply | Primary supply rail (2.5–5.5V); powers EEPROM core and I²C interface logic |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write-Protection | WP pin physically disables write operations across entire memory array (00h–FFh), preventing accidental corruption during power transitions |
| Schmitt Trigger Inputs | SDA and SCL inputs reject noise spikes ≥50 ns, enabling reliable operation on electrically noisy PCBs or long traces |
| Page Write Buffer | 8-byte internal latch allows single I²C transaction to update up to 8 consecutive addresses, reducing bus overhead by 87% vs. byte writes |
| Low Standby Current | 1 µA maximum at I-temp - extends battery life in always-on sensor nodes or backup power applications |
| I²C Compatibility | Fully compliant with Philips I²C-bus specification, supporting standard-mode (100 kHz), fast-mode (400 kHz), and multi-master arbitration |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed during system boot; no real-time timing constraints. Use Value: Enables plug-and-play sensor replacement without manual recalibration; WP pin prevents field overwrite during routine diagnostics. | Use Scenario: Holding user-configurable therapy parameters (e.g., dose rate, duration) in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, low-power configuration memory with hardware write-lock during active treatment. Use Value: Ensures parameter persistence across power cycles while preventing unintended changes via WP tie-to-VCC during therapy delivery. |
| Automotive ECU Bootloader Settings | Smart Meter Firmware Metadata |
Use Scenario: Recording bootloader version, secure boot status flags, and last-known-good firmware hash in engine control units. IC Role / Device Role / Timing Role: Persistent metadata storage accessed once per boot; tolerant of voltage brownouts during ignition. Use Value: Supports fail-safe recovery and firmware rollback; 2.5V minimum VCC ensures operation during cranking transients. | Use Scenario: Storing meter serial number, tariff tables, and tamper-event logs in utility smart meters with 15+ year field life. IC Role / Device Role / Timing Role: Long-term data archive with guaranteed 200-year retention and 1M-cycle endurance. Use Value: Eliminates need for periodic memory replacement; AEC-Q100 qualification confirms suitability for harsh meter environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA02T-I/SN | Lower VCC min (1.7V), same 400 kHz speed, identical SOIC-8 package and pinout | Better suited for battery-powered devices operating down to 1.7V; not qualified for automotive use | Select when ultra-low-voltage operation is required and automotive qualification is unnecessary |
| AT24C02D-SSHM-T | Same 2-Kbit capacity and SOIC-8 package; supports 1 MHz I²C; higher ESD rating (6 kV) | Enables faster configuration loading in high-throughput production test; requires updated timing validation | Choose for new designs needing higher-speed I²C or enhanced ESD robustness in industrial settings |
Compared with 24LC02BT-I/SN, the 24AA02T-I/SN extends voltage range downward but lacks AEC-Q100 qualification, while the AT24C02D-SSHM-T offers faster 1 MHz operation and stronger ESD immunity but requires revalidation of I²C timing margins in existing designs.
Availability
24LC02BT-I/SN is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, and automotive ECU bootloader settings requiring stable component supply and long-term lifecycle support.
Supply support for 24LC02BT-I/SN 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.
The 24LC02B family is designed for reliable, low-power nonvolatile data storage in cost-sensitive embedded systems where I²C interface simplicity and hardware write protection are critical.
FAQ
What is the minimum supply voltage required for reliable operation of the 24LC02BT-I/SN?
The 24LC02BT-I/SN 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 or read errors. This distinguishes it from the 24AA02 variant, which supports down to 1.7V.
Does the 24LC02BT-I/SN support multi-master I²C bus configurations?
Yes, the 24LC02BT-I/SN fully supports multi-master I²C bus operation per the Philips I²C specification. It implements standard arbitration and clock synchronization protocols, allowing multiple masters to share the same SDA/SCL lines without external bus contention logic.
How does the WP pin function on the 24LC02BT-I/SN, and what happens if it is left unconnected?
On the 24LC02BT-I/SN, tying WP to VCC disables all write operations (including page and byte writes) while permitting reads. If left unconnected, the internal weak pull-down ensures WP defaults to VSS, enabling full read/write access. External pull-up/pull-down is recommended for deterministic behavior.
What is the maximum number of bytes that can be written in a single page write operation for the 24LC02BT-I/SN?
The 24LC02BT-I/SN supports a maximum of 8 bytes per page write operation. Attempting to write more than 8 bytes before issuing a Stop condition causes the address pointer to wrap within the current 8-byte page boundary, overwriting earlier bytes in that page rather than advancing to the next page.
Is the 24LC02BT-I/SN qualified for automotive applications under AEC-Q100?
Yes, the 24LC02BT-I/SN is AEC-Q100 qualified for automotive applications. This qualification covers stress testing for temperature cycling, humidity, and electrical robustness, confirming suitability for under-hood and cabin ECUs where reliability under thermal and vibration stress is critical.
24LC02BT-I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 2Kbit
- Memory Organization:
- 256 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-SOIC
24LC02BT-I/SN FAQ
1.How can I place an order for 24LC02BT-I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC02BT-I/SN 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 24LC02BT-I/SN reliable?
The price and inventory of 24LC02BT-I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC02BT-I/SN is usually 5 days.
3.What payment methods are accepted for 24LC02BT-I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC02BT-I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC02BT-I/SN?
24LC02BT-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC02BT-I/SN 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 24LC02BT-I/SN?
For technical support, including 24LC02BT-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC02BT-I/SN requirements.
6.How does Aetrix verify that 24LC02BT-I/SN is sourced from the original manufacturer or authorized distributors?
All 24LC02BT-I/SN 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 24LC02BT-I/SN meets industry standards.
7.What is the process for return or replacement of 24LC02BT-I/SN?
All 24LC02BT-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24LC02BT-I/SN, 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 24LC02BT-I/SN part is unused and in its original packaging.
Return procedure for 24LC02BT-I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC02BT-I/SN 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…
