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STMicroelectronics M24C16-WDW6TP
- Part No.:
- M24C16-WDW6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M24C16-WDW6TP.pdf
- Description:
- IC EEPROM 16KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,582
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Product details
Overview
M24C16-WDW6TP from STMicroelectronics is a 16-Kbit I²C-compatible serial EEPROM organized as 2 K × 8 bits, operating from 2.5 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 the WC pin. It is used in industrial control modules for storing calibration data, device configuration, and firmware patch metadata.
For engineers reviewing the M24C16-WDW6TP datasheet, M24C16-WDW6TP pinout, M24C16-WDW6TP application, or M24C16-WDW6TP equivalent, this page delivers verified electrical parameters, TSSOP8 package mapping, I²C timing behavior, WC-controlled memory protection logic, and real-world use cases in embedded systems requiring nonvolatile parameter storage with robust ESD immunity and ECOPACK2 compliance.
Technical Context
The M24C16-WDW6TP implements a fully compliant I²C slave interface with start/stop detection, ACK/NACK handshaking, and 7-bit device addressing (1010A10A0). Its internal architecture includes a high-voltage generator for EEPROM programming, page latches for burst writes, and an address register that auto-increments during sequential reads.
Write control (WC) is a dedicated active-high input that disables all write operations-including byte and page writes-when asserted, while still allowing read access and device-select acknowledgment. The device integrates a power-on reset (POR) circuit ensuring reliable initialization across its –40 °C to +85 °C operating range, and supports both random and sequential read modes without external address latching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 Kbit (2 K × 8), directly addressable via I²C with 11-bit internal addressing |
| I²C clock frequency | Up to 400 kHz - enables fast parameter updates in real-time control loops |
| Supply voltage range | 2.5 V to 5.5 V - compatible with 3.3 V and 5 V microcontroller I/O domains |
| Page write size | 16 bytes per page - minimizes bus occupancy during bulk configuration writes |
| Write endurance | 4,000,000 cycles at 25 °C - supports daily firmware update logging over 10+ years |
| Data retention | 200 years at 55 °C - ensures long-term reliability in sealed industrial enclosures |
| Operating temperature | –40 °C to +85 °C - qualified for extended-temperature industrial and automotive body applications |
| ESD rating | ±3000 V HBM - withstands handling and board-level transients without latch-up |
Pinout & Package
Package: TSSOP8 (DW), 169 mil width, ECOPACK2-compliant, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SDA | Serial Data I/O | Open-drain bidirectional bus line; requires external pull-up; shares wire-OR topology with other I²C slaves |
| 2 VSS | Ground | Reference return path for VCC; must be low-impedance and decoupled near package pins |
| 3 SCL | Serial Clock Input | Master-generated clock; rising edge samples SDA; falling edge allows SDA transition |
| 4 NC | No Connect | Internally unconnected; must remain floating or grounded per layout guidelines |
| 5 NC | No Connect | Internally unconnected; no routing or soldering required |
| 6 NC | No Connect | Internally unconnected; avoid PCB trace stubs |
| 7 VCC | Supply Voltage | 2.5–5.5 V DC input; requires 10–100 nF ceramic decoupling capacitor adjacent to pin |
| 8 WC | Write Control Input | Active-high hardware lock: disables all writes when high; enables writes when low or floating |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write protection | WC pin provides unconditional, glitch-immune disable of all write instructions - no software dependency |
| ECOPACK2 packaging | TSSOP8 footprint with lead-free, halogen-free construction meeting RoHS and JEDEC J-STD-020D reflow profiles |
| Polling-ready ACK protocol | Supports write-cycle polling via repeated START + device address - eliminates fixed delay timing in host firmware |
| Roll-over page write | Automatically wraps excess bytes to page start - simplifies firmware buffer management during partial-page updates |
| Power-on reset (POR) | Guarantees non-responsive state until VCC exceeds internal threshold - prevents spurious writes during brown-out |
| Enhanced ESD/latch-up immunity | Qualified to ±3000 V HBM and AEC-Q100-002 - reduces field failure risk in noisy factory environments |
Applications
| Industrial PLC Configuration Storage | Smart Sensor Calibration Data Retention |
|---|---|
|
Use Scenario: Storing I/O mapping tables, PID tuning parameters, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed via I²C during boot and runtime reconfiguration. Use Value: Enables field-upgradable control logic without firmware reflashing; WC pin prevents accidental corruption during hot-swap maintenance. |
Use Scenario: Holding factory-calibrated offset/gain coefficients and temperature compensation curves in MEMS pressure sensors. IC Role / Device Role / Timing Role: Read-once-at-boot EEPROM providing stable reference values for analog signal conditioning. Use Value: Eliminates need for external calibration trimmers; 200-year retention ensures accuracy over product lifetime without recalibration. |
| Medical Device Usage Logs | Automotive Body Control Module Settings |
|
Use Scenario: Recording sterilization cycles, usage hours, and error event timestamps in portable diagnostic equipment. IC Role / Device Role / Timing Role: Write-on-event data logger using page-write bursts to minimize I²C bus contention. Use Value: 4M write cycles support >10 years of daily logging at 100 events/day; POR ensures integrity after battery replacement. |
Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in vehicle door modules. IC Role / Device Role / Timing Role: Parameter store accessed during ignition-on initialization and user-adjustment events. Use Value: –40 °C to +85 °C operation guarantees reliability in under-hood and door cavity environments; WC pin blocks unintended writes during CAN-triggered diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I²C 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 lacks WC pin; uses software write protection only | Requires firmware-level lock management; unsuitable where hardware-level fail-safe write disable is mandated | Select if cost sensitivity outweighs need for hardware write lock and ECOPACK2 compliance is not required |
| BR24G16FJ-3GE2 (ROHM) | 16 Kbit, 1.7–5.5 V, includes WC pin, but rated only to +70 °C ambient and offers 1M write cycles | Limited to commercial-temperature applications; lower endurance reduces suitability for high-frequency logging | Select for consumer-grade designs where extended temperature and longevity are not critical |
Compared with AT24C16D-SSHM-T and BR24G16FJ-3GE2, the M24C16-WDW6TP uniquely combines hardware write control, industrial temperature range, 4M write endurance, and ECOPACK2 packaging - making it the only option qualified for safety-critical, long-lifecycle, and harsh-environment deployments requiring guaranteed write inhibition.
Availability
M24C16-WDW6TP is available at Aetrix Electronics and suitable for industrial PLCs, smart sensor nodes, medical usage loggers, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and ECOPACK2-compliant sourcing.
Supply support for M24C16-WDW6TP 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-WDW6TP belongs to ST's serial EEPROM product line, engineered specifically for robust, low-power, I²C-based nonvolatile storage in space-constrained industrial and automotive applications demanding high reliability and long data retention.
FAQ
What is the function of the WC pin on the M24C16-WDW6TP?
The WC (Write Control) pin is an active-high hardware lock that disables all write operations-including byte and page writes-when driven high. When low or floating, writes are enabled. This provides deterministic, glitch-immune protection against accidental memory corruption, independent of firmware state or I²C bus activity.
Does the M24C16-WDW6TP support standard I²C addressing modes?
Yes. It uses a 7-bit device address with fixed prefix '1010' followed by two hardware address bits (A1, A0) and a R/W bit, enabling up to four devices on the same I²C bus. Addressing complies fully with I²C specification v2.1, including START/STOP detection, ACK/NACK timing, and clock stretching tolerance.
Can the M24C16-WDW6TP operate at 1.8 V?
No. The M24C16-WDW6TP variant is specified for 2.5 V to 5.5 V operation only. For 1.8 V compatibility, ST offers the M24C16-R series (e.g., M24C16-RDW6TP), which supports 1.8–5.5 V but shares identical pinout, timing, and feature set except for supply range and associated DC parameters.
How is data retention validated for the M24C16-WDW6TP?
Data retention is characterized and qualified per JEDEC standards, with production testing confirming minimum 200-year retention at 55 °C. This value is derived from accelerated life testing at elevated temperature/voltage, extrapolated using Arrhenius modeling, and verified across wafer lots and package types including TSSOP8.
M24C16-WDW6TP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
M24C16-WDW6TP FAQ
1.How can I place an order for M24C16-WDW6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C16-WDW6TP 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-WDW6TP reliable?
The price and inventory of M24C16-WDW6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C16-WDW6TP is usually 5 days.
3.What payment methods are accepted for M24C16-WDW6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C16-WDW6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C16-WDW6TP?
M24C16-WDW6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C16-WDW6TP 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-WDW6TP?
For technical support, including M24C16-WDW6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C16-WDW6TP requirements.
6.How does Aetrix verify that M24C16-WDW6TP is sourced from the original manufacturer or authorized distributors?
All M24C16-WDW6TP 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-WDW6TP meets industry standards.
7.What is the process for return or replacement of M24C16-WDW6TP?
All M24C16-WDW6TP units undergo pre-shipment inspection (PSI). If there is an issue with M24C16-WDW6TP, 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-WDW6TP part is unused and in its original packaging.
Return procedure for M24C16-WDW6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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