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STMicroelectronics M24C16-RDW6TP
- Part No.:
- M24C16-RDW6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M24C16-RDW6TP.pdf
- Description:
- IC EEPROM 16KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,112
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Product details
Overview
M24C16-RDW6TP from STMicroelectronics is a 16-Kbit I²C-compatible serial EEPROM organized as 2 K × 8 bits, operating with 1.8 V to 5.5 V supply and supporting up to 400 kHz clock frequency. It features 16-byte page write capability, >4 million write cycles, 200-year data retention, and hardware write protection via WC pin. It is used in industrial control modules for parameter storage and calibration data backup.
For engineers reviewing the M24C16-RDW6TP datasheet, M24C16-RDW6TP pinout, M24C16-RDW6TP application, or M24C16-RDW6TP equivalent, key selection considerations include supply voltage range (1.8–5.5 V), I²C timing compliance (400 kHz max), TSSOP8 ECOPACK2 packaging, write-protect functionality, and guaranteed endurance at extended temperature (−40 °C to +85 °C).
Technical Context
The M24C16-RDW6TP implements a standard I²C slave protocol with start/stop detection, ACK/NACK handshaking, and addressable byte/page write operations. Its internal architecture includes a high-voltage generator for EEPROM programming, page latches for burst writes, and a sequencer managing internal write cycles independent of bus activity.
It supports three read modes - random, current-address, and sequential - all unaffected by WC pin state. Write operations are disabled only when WC is driven high; floating or low WC enables full memory access. The device integrates power-on reset (POR) and latch-up/ESD protection compliant with AEC-Q100 and JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 Kbit (2,048 × 8-bit array), sufficient for firmware configuration, sensor calibration tables, or device ID storage in compact embedded systems. |
| I²C clock support | Up to 400 kHz (Fast Mode), enabling efficient data transfer without requiring custom timing logic or external clock dividers. |
| Supply voltage range | 1.8 V to 5.5 V - compatible with both 1.8 V logic domains and legacy 3.3 V/5 V systems, eliminating level-shifter needs in mixed-voltage designs. |
| Write time | ≤5 ms per byte or per 16-byte page - deterministic internal write cycle allows precise timeout handling in host firmware without polling overhead. |
| Endurance & retention | >4 million write cycles and >200 years data retention at 55 °C - validated for long-life industrial deployments where field reprogramming occurs infrequently but reliably. |
| Operating temperature | −40 °C to +85 °C - qualified for use in automotive body electronics, industrial PLCs, and outdoor metering equipment. |
| Package | TSSOP8 (DW), 169 mil width, ECOPACK2-compliant - surface-mount footprint optimized for automated assembly and thermal reliability in dense PCB layouts. |
Pinout & Package
Package: TSSOP8 (DW), 169 mil width, ECOPACK2 RoHS-compliant, 0.65 mm pitch, 3.0 mm × 4.4 mm body size.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SDA | Serial Data I/O | Open-drain bidirectional line for I²C data exchange; requires external pull-up resistor (typically 2.2–10 kΩ) to VCC. |
| 2 VSS | Ground | Primary reference for VCC and signal levels; must be connected directly to system ground plane with low-inductance path. |
| 3 SCL | Serial Clock Input | Input-only clock line synchronized to master; rise/fall times ≤50 ns required for 400 kHz operation. |
| 4 NC | No Connect | Internally unconnected; must remain floating or grounded per layout best practice - no routing or soldering recommended. |
| 5 NC | No Connect | Internally unconnected; same design treatment as Pin 4 - avoid routing or termination. |
| 6 NC | No Connect | Internally unconnected; unused pad - leave unconnected on PCB to prevent parasitic coupling. |
| 7 VCC | Supply Voltage | Power input (1.8–5.5 V); requires local 10–100 nF ceramic decoupling capacitor placed within 2 mm of pin. |
| 8 WC | Write Control | Active-low (or floating-enabled) hardware write protect; driven high to disable all write operations across full memory array. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write protection | WC pin disables all writes globally - prevents accidental overwrites during power transients or firmware glitches without software intervention. |
| Page write mode | 16-byte atomic writes reduce I²C transaction count by up to 16× versus byte writes - critical for minimizing bus occupancy in real-time systems. |
| Wide VCC range | 1.8 V minimum enables direct interfacing with ultra-low-power microcontrollers (e.g., STM32L series) without regulator or level translation. |
| High endurance | 4 million write cycles allow daily reconfiguration over 10+ years - suitable for logging, adaptive tuning, or field-upgradeable parameter sets. |
| ECOPACK2 packaging | TSSOP8 meets RoHS, REACH, and halogen-free requirements while offering superior thermal dissipation vs. SO8 for high-volume automated assembly. |
Applications
| Industrial Sensor Nodes | Smart Meter Calibration Storage |
|---|---|
|
Use Scenario: Storing temperature-compensation coefficients and factory calibration offsets in battery-powered wireless sensors deployed in HVAC or environmental monitoring. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed during boot and occasionally updated via I²C after sensor recalibration. Use Value: Enables field recalibration without firmware update; 1.8 V operation extends battery life; WC pin prevents corruption during brown-out events. |
Use Scenario: Retaining tariff tables, billing counters, and metrology calibration constants in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter storage with hardware write lock active during normal operation. Use Value: WC pin ensures billing integrity; >200-year retention guarantees lifetime accuracy without replacement; TSSOP8 fits constrained meter PCB space. |
| PLC I/O Module Configuration | Automotive Body Control Unit (BCU) |
|
Use Scenario: Holding module-specific I/O mapping, scaling factors, and diagnostic thresholds in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Persistent settings storage accessible during cold start and updated via maintenance interface using standard I²C commands. Use Value: Eliminates need for external configuration jumpers; 4M-cycle endurance supports frequent commissioning updates; −40 °C to +85 °C rating matches industrial ambient. |
Use Scenario: Saving seat position memory, mirror presets, and lighting profiles in 12 V automotive body domain controllers. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to 1.8 V CAN/LIN microcontroller peripherals without level shifters. Use Value: 1.8 V compatibility reduces BOM cost; ECOPACK2 package passes automotive vibration and thermal cycling tests; WC pin blocks unintended writes during ignition transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16D-SSHM-T (Microchip) | Same 16 Kbit size, 1.7–5.5 V supply, but rated only to +70 °C; lacks WC pin - write protection relies solely on software address locking. | Suitable for commercial-grade consumer devices; not qualified for extended industrial or automotive temperature ranges. | Select if cost sensitivity outweighs temperature rating and hardware write lock requirement. |
| BR24G16FJ-WE2 (ROHM) | 16 Kbit, 1.6–5.5 V, −40 °C to +105 °C, includes WC pin, but uses smaller DFN6 (2.0 × 2.5 mm) package - different footprint and thermal profile. | Better suited for space-constrained automotive modules needing extended high-temp operation beyond +85 °C. | Select when board space is critical and +105 °C operation is required; verify PCB land pattern compatibility. |
Compared with AT24C16D-SSHM-T and BR24G16FJ-WE2, the M24C16-RDW6TP uniquely balances industrial temperature range, hardware write protection, TSSOP8 manufacturability, and 1.8 V compatibility - making it optimal for cost-sensitive yet robust embedded control applications.
Availability
M24C16-RDW6TP is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter calibration storage, PLC I/O module configuration, and automotive body control units requiring stable component supply across multi-year production cycles.
Supply support for M24C16-RDW6TP 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.
The M24C16-RDW6TP belongs to ST's serial EEPROM product line, engineered specifically for reliable, low-voltage, I²C-based nonvolatile storage in space- and power-constrained embedded systems.
FAQ
What is the function of the WC pin on M24C16-RDW6TP?
The WC (Write Control) pin is an active-high hardware write protect input. When driven high, it disables all write operations-including byte and page writes-to the entire 16 Kbit memory array. When left floating or pulled low, writes are enabled. This provides fail-safe protection against accidental overwrites during power-up, brown-out, or firmware errors, independent of I²C command execution.
Can M24C16-RDW6TP operate at 1.8 V and still support 400 kHz I²C communication?
Yes. The M24C16-RDW6TP is fully specified for 1.8 V to 5.5 V operation and supports I²C Fast Mode (400 kHz) across its entire voltage range. Electrical characteristics including input thresholds (VIL/VIH), rise/fall times, and ACK timing are validated down to 1.8 V per DS9194 Rev 11, Table 13, ensuring robust interoperability with 1.8 V microcontrollers without level shifting.
How does page write mode improve system efficiency compared to byte write?
Page write allows up to 16 contiguous bytes to be written in a single I²C transaction, reducing bus overhead by up to 16× versus individual byte writes. Each page write completes in ≤5 ms - same as byte write - but transfers more data per stop/start sequence. This lowers CPU load, shortens firmware execution time, and minimizes bus contention in multi-master systems.
Is the TSSOP8 package of M24C16-RDW6TP lead-free and RoHS-compliant?
Yes. The M24C16-RDW6TP in TSSOP8 (DW) package is manufactured under ST's ECOPACK2 initiative and fully complies with RoHS Directive 2011/65/EU, REACH, and halogen-free requirements. It uses matte tin (Sn) plating on leads and meets JEDEC J-STD-020D soldering profiles for both Sn-Pb and Pb-free assembly processes.
M24C16-RDW6TP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
M24C16-RDW6TP FAQ
1.How can I place an order for M24C16-RDW6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C16-RDW6TP 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 M24C16-RDW6TP reliable?
The price and inventory of M24C16-RDW6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C16-RDW6TP is usually 5 days.
3.What payment methods are accepted for M24C16-RDW6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C16-RDW6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C16-RDW6TP?
M24C16-RDW6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C16-RDW6TP 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 M24C16-RDW6TP?
For technical support, including M24C16-RDW6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C16-RDW6TP requirements.
6.How does Aetrix verify that M24C16-RDW6TP is sourced from the original manufacturer or authorized distributors?
All M24C16-RDW6TP 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 M24C16-RDW6TP meets industry standards.
7.What is the process for return or replacement of M24C16-RDW6TP?
All M24C16-RDW6TP units undergo pre-shipment inspection (PSI). If there is an issue with M24C16-RDW6TP, 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 M24C16-RDW6TP part is unused and in its original packaging.
Return procedure for M24C16-RDW6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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