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Microchip Technology 24LC16BT-E/MS
- Part No.:
- 24LC16BT-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24LC16BT-E/MS.pdf
- Description:
- IC EEPROM 16KBIT I2C 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,278
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Product details
Overview
24LC16BT-E/MS from Microchip Technology Inc. is a 16-Kbit I²C-compatible serial EEPROM organized as eight 256 × 8-bit memory blocks. It operates from 2.5V to 5.5V, supports up to 400 kHz clock frequency, features hardware write-protection via the WP pin, and delivers ≤1 μA standby current at industrial and extended temperature ranges (–40°C to +125°C). It is used in embedded system configuration storage where low-voltage operation and noise-immune bus interface are required.
For engineers reviewing the 24LC16BT-E/MS datasheet, 24LC16BT-E/MS pinout, 24LC16BT-E/MS application, or 24LC16BT-E/MS equivalent, key selection criteria include VCC range compatibility (2.5–5.5 V), I²C timing compliance at 400 kHz, WP-enabled hardware protection, 16-byte page write buffer, and MSOP-8 packaging for space-constrained PCB layouts.
Technical Context
The 24LC16BT-E/MS functions as an I²C slave device with fixed 4-bit control code '1010' and 3-bit block-select addressing, enabling access to eight 256-word memory blocks. Its internal Address Pointer auto-increments during sequential reads and page writes, supporting current address, random, and sequential read modes.
It implements Schmitt-trigger inputs and output slope control on SDA/SCL pins to suppress noise and eliminate ground bounce. Write cycles are self-timed (≤5 ms), and acknowledge polling is supported to detect completion without fixed delay timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8), organized as eight 256-word blocks for hierarchical addressing |
| Interface | I²C-compatible two-wire serial bus with 400 kHz max clock (2.5–5.5 V), 100 kHz at lower VCC |
| Write Cycle Time | ≤5 ms per byte or page - enables deterministic firmware timeout handling |
| Endurance | 1,000,000 erase/write cycles - supports frequent calibration or logging updates |
| Data Retention | >200 years at +85°C - ensures long-term reliability in unpowered storage |
| Supply Voltage | 2.5 V to 5.5 V - compatible with 3.3 V and 5 V logic systems without level shifting |
| Temperature Range | –40°C to +125°C (Extended grade) - qualified for automotive and industrial under-hood environments |
Pinout & Package
24LC16BT-E/MS is packaged in an 8-lead MSOP (Micro Small Outline Package) with 0.65 mm pitch, 3.0 mm × 3.0 mm body, and exposed pad option (per datasheet note). Pin 1 is marked by a beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Return path for all internal circuitry; must be connected to system GND plane |
| WP | Hardware write-protect input | Tied to VCC to disable all writes; tied to VSS to enable full read/write access |
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transfers; requires external pull-up |
| SDA | Serial data I/O | Bidirectional open-drain line; requires external 2–10 kΩ pull-up depending on speed |
| VCC | Power supply | 2.5–5.5 V DC input; decoupling capacitor (0.1 μF) recommended near pin |
| A0, A1, A2 | No-connect (NC) | Not internally bonded; may be left floating or tied to VSS/VCC with no functional effect |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Eliminates false triggering from bus noise; hysteresis ≥0.05×VCC ensures robust edge detection |
| 16-byte page write buffer | Reduces I²C transaction overhead - up to 16 bytes written per Stop condition |
| Self-timed write cycle | Removes need for external timing control; internal erase/write completes autonomously in ≤5 ms |
| ESD protection | >4 kV HBM - enhances reliability during board handling and system integration |
| Write-protect pin (WP) | Hardware-level security preventing accidental overwrites without firmware intervention |
Applications
| Industrial Sensor Calibration Storage | Automotive Body Control Module (BCM) Configuration |
|---|---|
Use Scenario: Storing factory-calibrated sensor offsets and gain coefficients in programmable industrial transmitters. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed during power-up initialization via I²C. Use Value: Enables field-replaceable sensors without recalibration; retains settings across 200+ years of shelf life. | Use Scenario: Holding user-configurable lighting profiles and door lock behavior in BCMs. IC Role / Device Role / Timing Role: Slave EEPROM storing persistent settings updated infrequently but read at every ignition cycle. Use Value: WP pin prevents corruption during vehicle battery transients; 125°C rating supports under-dash mounting. |
| Medical Infusion Pump Parameter Backup | Smart Energy Meter Firmware Patch Storage |
Use Scenario: Safeguarding drug delivery parameters and usage logs in battery-backed medical devices. IC Role / Device Role / Timing Role: Low-power I²C slave providing tamper-resistant storage for critical therapy data. Use Value: ≤1 μA standby current extends battery life; 1M-cycle endurance supports daily log updates for 27+ years. | Use Scenario: Storing field-upgradable firmware patches and tariff tables in utility meters. IC Role / Device Role / Timing Role: Secure, page-write-capable memory interfaced to metering SoC via I²C. Use Value: Hardware WP prevents unauthorized patch execution; 400 kHz interface enables fast update transfer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA16T-I/MS | Wider VCC range (1.7–5.5 V); 400 kHz only above 2.5 V; same pinout and memory map | Preferred for 1.8 V or mixed-voltage systems; not rated for 125°C operation | Select when operating below 2.5 V or requiring broader voltage flexibility at industrial temp only |
| AT24C16C-MAHM-T | Same 16 Kbit size, 400 kHz, MSOP-8; 1.7–5.5 V supply; different I²C address mapping (A0/A1/A2 functional) | Supports multi-device I²C bus via address pins; lacks WP pin - software-only protection | Choose when multiple EEPROMs share one bus or hardware write-protection is not required |
Compared with 24LC16BT-E/MS, the 24AA16T-I/MS offers lower-voltage operation but sacrifices extended temperature support, while the AT24C16C-MAHM-T adds address pin flexibility at the cost of hardware write protection - making 24LC16BT-E/MS optimal for high-temp, single-device, safety-critical storage.
Availability
24LC16BT-E/MS is available at Aetrix Electronics and suitable for industrial sensor calibration storage, automotive body control module configuration, and medical infusion pump parameter backup requiring stable component supply across extended temperature and long-lifecycle deployments.
Supply support for 24LC16BT-E/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 components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24LC16B family was designed specifically for reliable, low-power nonvolatile data storage in space- and power-constrained embedded systems requiring I²C interface and extended temperature resilience.
FAQ
What is the maximum I²C clock frequency supported by the 24LC16BT-E/MS?
The 24LC16BT-E/MS supports up to 400 kHz I²C clock frequency when operated within its specified VCC range of 2.5 V to 5.5 V. At voltages below 2.5 V, the maximum clock rate drops to 100 kHz. This dual-speed capability ensures compatibility with both legacy 100 kHz buses and higher-throughput 400 kHz designs, and the 24LC16BT-E/MS automatically adapts without configuration.
Does the 24LC16BT-E/MS require external pull-up resistors on SDA and SCL lines?
Yes, the 24LC16BT-E/MS requires external pull-up resistors on both SDA and SCL lines because it uses open-drain outputs. Recommended values are 2 kΩ for 400 kHz operation and 10 kΩ for 100 kHz. The exact value depends on bus capacitance and rise-time requirements, and proper termination is essential for reliable I²C communication - a key design consideration for the 24LC16BT-E/MS.
How does the WP pin function on the 24LC16BT-E/MS?
The WP (Write-Protect) pin on the 24LC16BT-E/MS provides hardware-level write inhibition: when tied to VCC, all memory writes are blocked while reads remain fully functional; when tied to VSS (or left floating, per datasheet), normal read/write operation is enabled. This feature protects critical configuration data from accidental overwrite - a core safety mechanism built into the 24LC16BT-E/MS.
What is the page write capacity of the 24LC16BT-E/MS?
The 24LC16BT-E/MS has a 16-byte page write buffer, allowing up to 16 consecutive bytes to be written in a single I²C transaction. Page writes must stay within physical page boundaries (addresses 0x00–0x0F, 0x10–0x1F, etc.); crossing boundaries causes wraparound. This capability reduces bus overhead and accelerates bulk updates - a defining performance trait of the 24LC16BT-E/MS.
Is the 24LC16BT-E/MS qualified for automotive applications?
Yes, the 24LC16BT-E/MS is qualified to AEC-Q100 Grade 1 (–40°C to +125°C) and supports extended temperature operation, making it suitable for automotive applications such as body control modules and infotainment system configuration storage. Its 125°C rating, 1 million endurance cycles, and hardware write protection align with automotive reliability requirements - key attributes verified for the 24LC16BT-E/MS.
24LC16BT-E/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:
- 16Kbit
- Memory Organization:
- 2K 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
24LC16BT-E/MS FAQ
1.How can I place an order for 24LC16BT-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC16BT-E/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 24LC16BT-E/MS reliable?
The price and inventory of 24LC16BT-E/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC16BT-E/MS is usually 5 days.
3.What payment methods are accepted for 24LC16BT-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC16BT-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC16BT-E/MS?
24LC16BT-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC16BT-E/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 24LC16BT-E/MS?
For technical support, including 24LC16BT-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC16BT-E/MS requirements.
6.How does Aetrix verify that 24LC16BT-E/MS is sourced from the original manufacturer or authorized distributors?
All 24LC16BT-E/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 24LC16BT-E/MS meets industry standards.
7.What is the process for return or replacement of 24LC16BT-E/MS?
All 24LC16BT-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24LC16BT-E/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 24LC16BT-E/MS part is unused and in its original packaging.
Return procedure for 24LC16BT-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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