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Microchip Technology 24LC16SC/W15K
- Part No.:
- 24LC16SC/W15K
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- Die
- Datasheet:
-
24LC16SC/W15K.pdf
- Description:
- IC EEPROM 16KBIT I2C 400KHZ DIE
- Quantity:
- Payment:
- Shipping:
Inventory:2,197
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Product details
Overview
24LC16SC/W15K from Microchip Technology is a 16 Kbit I²C-compatible serial EEPROM organized as 2,048 × 8 bits, operating from 2.5V to 5.5V, with 16-byte page write capability, 400 kHz maximum clock frequency, and 1 million erase/write cycles endurance. It is used for nonvolatile parameter storage in embedded systems such as industrial controllers and consumer electronics.
For engineers reviewing the 24LC16SC/W15K datasheet, 24LC16SC/W15K pinout, 24LC16SC/W15K application, or 24LC16SC/W15K equivalent, key selection considerations include its I²C bus compatibility, 16-byte page size, SOIC-8 package, write-protect functionality, and industrial temperature grade (–40°C to +85°C).
Technical Context
The 24LC16SC/W15K implements a standard two-wire I²C interface with open-drain SDA/SCL pins, supports standard-mode (100 kHz) and fast-mode (400 kHz) signaling, and uses an internal address counter for sequential read operations. It features hardware write protection via the WP pin and automatic page-write timing control.
Memory organization follows a fixed 2,048-word × 8-bit structure with 128 pages of 16 bytes each; address wraparound occurs at page boundaries during multi-byte writes. The device includes an internal power-on reset circuit and built-in write-cycle timing control with no external components required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 16 Kbit (2,048 × 8 bits) - provides sufficient space for configuration data, calibration tables, or firmware metadata in compact embedded designs. |
| Interface | I²C (two-wire serial) - enables simple, low-pin-count connection to microcontrollers with minimal PCB routing and shared bus support. |
| Supply Voltage | 2.5V to 5.5V - compatible with both 3.3V and 5V logic domains without level-shifting circuitry. |
| Page Size | 16 bytes - defines maximum byte count per write cycle; exceeding this triggers automatic page boundary wrap, requiring software management. |
| Write Endurance | 1,000,000 cycles - ensures long-term reliability in applications with frequent parameter updates, such as energy metering or sensor calibration logs. |
| Data Retention | 200 years at +25°C - guarantees persistent storage integrity over product lifetime without refresh or backup power. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and outdoor equipment. |
Pinout & Package
24LC16SC/W15K is housed in an 8-lead SOIC (150 mil) package with gull-wing leads, RoHS-compliant Pb-free plating, and moisture sensitivity level (MSL) 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device Address Inputs | Configure one of eight possible I²C slave addresses (0x50–0x57); tied high/low to enable multiple devices on same bus. |
| VSS | Ground Reference | System ground return path; must be connected directly to PCB ground plane for stable I²C signaling and noise immunity. |
| SDA | Serial Data Line | Open-drain bidirectional I²C data line; requires external pull-up resistor (typically 2.2–10 kΩ) to VCC. |
| SCL | Serial Clock Line | Open-drain unidirectional I²C clock input; driven by master only; requires same pull-up as SDA. |
| WP | Write-Protect Input | Active-high hardware lock: when pulled high, prevents all write operations to memory array, protecting critical data from accidental overwrite. |
| VCC | Power Supply | Primary supply input (2.5–5.5V); decoupling capacitor (0.1 µF ceramic) recommended within 1 cm of pin for noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | 2.5V to 5.5V range eliminates need for dual-rail supplies or voltage translators in mixed-voltage systems. |
| Hardware write protection | WP pin enables system-level data integrity control independent of firmware state or I²C command execution. |
| Self-timed write cycle | Internal timer automatically manages erase/write completion (max 5 ms); host can poll ACK or use timeout-based polling without busy-wait loops. |
| High-reliability memory cell | 1M endurance cycles and 200-year data retention meet industrial-grade requirements for unattended operation. |
| I²C bus compatibility | Fully compliant with Philips I²C specification, supporting standard- and fast-mode speeds up to 400 kHz with no protocol translation needed. |
Applications
| Industrial PLC Configuration Storage | Consumer Appliance Calibration Data |
|---|---|
Use Scenario: Storing I/O mapping, PID tuning parameters, and alarm thresholds in programmable logic controllers deployed in factory environments. IC Role / Device Role / Timing Role: Nonvolatile configuration register bank accessed via I²C during boot and runtime reconfiguration. Use Value: Enables field-upgradable settings without firmware reflashing; WP pin prevents corruption during power interruption or EMI events. |
Use Scenario: Retaining user preferences, motor timing profiles, and sensor offset corrections in washing machines and HVAC units. IC Role / Device Role / Timing Role: Parameter archive accessed during power-on initialization and adaptive learning cycles. Use Value: Maintains personalized settings across 10+ years of operation; 2.5–5.5V range matches appliance mainboard supply rails. |
| Medical Device Usage Logs | Automotive Body Control Module IDs |
Use Scenario: Recording sterilization cycles, usage counts, and maintenance timestamps in portable diagnostic equipment. IC Role / Device Role / Timing Role: Event-driven logging device with timestamped entries written after each operational session. Use Value: 1M write cycles support >270 daily writes for 10 years; industrial temp grade ensures reliability in clinical storage conditions. |
Use Scenario: Storing vehicle-specific configuration codes, door module pairing keys, and lighting profiles in automotive BCMs. IC Role / Device Role / Timing Role: Secure identity store accessed during CAN-initiated configuration handshakes. Use Value: Hardware WP prevents unauthorized reprogramming; SOIC-8 footprint fits constrained under-hood PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24LC16B-I/P | Same density, page size, and I²C interface; differs only in packaging (PDIP-8 vs. SOIC-8) and marking suffix. | No functional difference; PDIP variant used for prototyping or through-hole assembly where SOIC is not feasible. | Select 24LC16B-I/P only if manual soldering or breadboard evaluation is required; identical electrical behavior. |
| 24AA16-I/SN | Same 16 Kbit I²C EEPROM but rated for 1.8–5.5V operation; otherwise identical pinout, timing, and feature set. | Enables direct integration into 1.8V or 2.5V microcontroller subsystems without level shifters, unlike 24LC16SC/W15K's 2.5V minimum. | Choose 24AA16-I/SN for ultra-low-voltage designs; otherwise 24LC16SC/W15K remains optimal for 3.3V/5V systems with proven industrial qualification. |
Compared with 24LC16B-I/P and 24AA16-I/SN, the 24LC16SC/W15K offers guaranteed 2.5V operation and SOIC-8 packaging optimized for automated SMT production, while maintaining full functional equivalence with both alternatives in standard 3.3V/5V I²C systems.
Availability
24LC16SC/W15K is available at Aetrix Electronics and suitable for industrial control systems, consumer appliance manufacturing, medical diagnostics equipment, and automotive body electronics requiring stable component supply and long-term obsolescence management.
Supply support for 24LC16SC/W15K 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 U.S.-based semiconductor company headquartered in Chandler, Arizona, specializing in microcontrollers, analog products, and serial nonvolatile memory with vertically integrated wafer fabrication and test facilities.
The 24LC16SC/W15K belongs to Microchip's I²C Serial EEPROM family, designed specifically for reliable, low-pin-count nonvolatile data storage in cost-sensitive and space-constrained embedded applications across industrial and consumer markets.
FAQ
What is the maximum I²C clock frequency supported by the 24LC16SC/W15K?
The 24LC16SC/W15K supports a maximum I²C clock frequency of 400 kHz in fast-mode operation. This allows efficient data transfer while maintaining robust noise immunity and compatibility with legacy and modern microcontroller I²C peripherals. The device does not support high-speed mode (3.4 MHz), and operation above 400 kHz may result in communication failures or data corruption.
Does the 24LC16SC/W15K require an external pull-up resistor on the SDA and SCL lines?
Yes, the 24LC16SC/W15K requires external pull-up resistors on both SDA and SCL lines because it uses open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and speed; 4.7 kΩ is commonly used for 400 kHz operation with up to 400 pF total bus capacitance. Failure to install pull-ups will prevent proper I²C communication.
How many unique I²C addresses can be assigned to the 24LC16SC/W15K?
The 24LC16SC/W15K supports eight unique I²C slave addresses (0x50–0x57) via the A0, A1, and A2 address input pins. Each pin can be hardwired to VCC or VSS, allowing up to eight devices on the same I²C bus without address conflict-ideal for multi-sensor or modular system architectures requiring distributed nonvolatile storage.
What is the function of the WP pin on the 24LC16SC/W15K?
The WP (Write-Protect) pin on the 24LC16SC/W15K is an active-high hardware lock that disables all write operations-including byte write, page write, and write of the status register-when asserted. This provides fail-safe protection against accidental or malicious memory corruption during power transients, firmware bugs, or EMI events, independent of software control.
Is the 24LC16SC/W15K RoHS compliant and lead-free?
Yes, the 24LC16SC/W15K is RoHS compliant and uses Pb-free plating on its SOIC-8 package terminals. It meets JEDEC J-STD-020 moisture sensitivity level (MSL) 3 requirements and is qualified for lead-free reflow soldering profiles, including peak temperatures up to 260°C. Full compliance documentation is available through Microchip's quality portal.
24LC16SC/W15K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Tray
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
24LC16SC/W15K FAQ
1.How can I place an order for 24LC16SC/W15K through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC16SC/W15K 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 24LC16SC/W15K reliable?
The price and inventory of 24LC16SC/W15K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC16SC/W15K is usually 5 days.
3.What payment methods are accepted for 24LC16SC/W15K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC16SC/W15K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC16SC/W15K?
24LC16SC/W15K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC16SC/W15K 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 24LC16SC/W15K?
For technical support, including 24LC16SC/W15K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC16SC/W15K requirements.
6.How does Aetrix verify that 24LC16SC/W15K is sourced from the original manufacturer or authorized distributors?
All 24LC16SC/W15K 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 24LC16SC/W15K meets industry standards.
7.What is the process for return or replacement of 24LC16SC/W15K?
All 24LC16SC/W15K units undergo pre-shipment inspection (PSI). If there is an issue with 24LC16SC/W15K, 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 24LC16SC/W15K part is unused and in its original packaging.
Return procedure for 24LC16SC/W15K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC16SC/W15K 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
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