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STMicroelectronics M24C64-FDW6TP
- Part No.:
- M24C64-FDW6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M24C64-FDW6TP.pdf
- Description:
- IC EEPROM 64KBIT I2C 1MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:17,558
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Product details
Overview
M24C64-FDW6TP from STMicroelectronics is a 64-Kbit I²C-compatible EEPROM organized as 8 K × 8 bits, designed for nonvolatile data storage in embedded control and system configuration circuits. It operates from 1.7 V to 5.5 V over –40 °C to +85 °C, supports 1 MHz/400 kHz/100 kHz I²C bus modes, features 32-byte page write capability with ≤5 ms write time, and includes hardware write protection via WC pin. It is commonly used in industrial sensors for calibration parameter retention.
For engineers reviewing the M24C64-FDW6TP datasheet, M24C64-FDW6TP pinout, M24C64-FDW6TP application, or M24C64-FDW6TP equivalent, key selection considerations include supply voltage range compatibility (1.7–5.5 V), I²C speed mode support (up to 1 MHz), page size (32 bytes), write cycle endurance (>4 million), and package-specific pin mapping for SO8N/TSSOP8/UFDFPN/WLCSP variants.
Technical Context
The M24C64-FDW6TP implements a standard I²C slave protocol with 7-bit device addressing (1010xxxR/W for memory array, 1011xxxR/W for identification page), where E2–E0 pins configure the three LSBs of the address. It uses internal high-voltage generation and sequencer logic for EEPROM cell programming, with automatic address incrementing and ACK-based polling for write completion detection.
It integrates enhanced ESD/latch-up protection and supports both random and sequential read modes. The WC pin provides hardware-level write lock for the entire memory array; when asserted high, all write attempts are rejected with NACK, while reads remain fully functional regardless of WC state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory capacity | 64 Kbit (8 Kbyte), organized as 8,192 × 8-bit words - sufficient for firmware patch storage or multi-sensor calibration tables. |
| I²C bus speed | Supports 100 kHz, 400 kHz, and 1 MHz modes - enables fast configuration loading in real-time control loops. |
| Supply voltage range | 1.7 V to 5.5 V at –40 °C to +85 °C - compatible with wide-input industrial power rails and low-power battery-backed systems. |
| Write time | ≤5 ms for byte or page write - ensures deterministic timing for critical configuration updates without blocking host CPU. |
| Endurance | >4 million write cycles - supports frequent recalibration in test equipment or field-upgradable modules. |
| Data retention | >200 years at 25 °C - guarantees long-term integrity of stored serial numbers, calibration coefficients, or security keys. |
| Page size | 32 bytes - matches typical I²C burst transfer limits and aligns with common microcontroller DMA buffer sizes. |
Pinout & Package
Package: UFDFPN8 (2 mm × 3 mm, ECOPACK2, 0.5 mm pitch). This RoHS-compliant, halogen-free 8-pin ultra-thin DFN package supports automated optical inspection and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Must be decoupled with 10–100 nF capacitor near pin; powers internal HV generator and logic; stable DC required before any I²C transaction. |
| VSS | Ground reference | Common return path for all signals and internal charge pump; must be low-impedance connection to avoid noise-induced write errors. |
| SCL | Serial clock input | Master-generated clock; rising edge samples SDA; open-drain compatible; requires external pull-up resistor (value depends on bus capacitance and speed). |
| SDA | Serial data bidirectional I/O | Open-drain output; shared bus line requiring external pull-up; transmits ACK/NACK during 9th clock pulse; must not change while SCL is high. |
| WC | Write control input | Active-high hardware lock: disables all writes to memory array when driven high; floating or low enables write operations. |
| E0, E1, E2 | Chip enable address inputs | Set 3-bit device address LSBs; internally tied to 001 in this UFDFPN8 variant - fixes I²C address to 1010001x (0x51/0x50). |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write protection | WC pin enables system-level lockout of memory writes - prevents accidental overwrites during firmware updates or brown-out conditions. |
| Multi-speed I²C compatibility | Full support for Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) modes - simplifies integration across legacy and high-performance host platforms. |
| Robust power sequencing | Integrated POR circuit holds device in reset until VCC exceeds threshold - eliminates spurious writes during power ramp-up/down. |
| Enhanced reliability | ESD >4 kV HBM and latch-up immunity per JESD78 - suitable for industrial environments with noisy power supplies and unshielded interconnects. |
| Page-aligned write efficiency | 32-byte page buffer allows burst programming without repeated address overhead - reduces I²C transaction count by up to 31× vs. byte-write. |
Applications
| Industrial Sensor Calibration | Smart Meter Configuration Storage |
|---|---|
|
Use Scenario: Storing temperature-compensated offset/gain coefficients for analog sensor front-ends in factory-calibrated pressure transmitters. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding 24-byte calibration dataset updated once per production line calibration cycle. Use Value: Enables field-replaceable sensor modules to retain calibrated performance without reprogramming host MCU firmware. |
Use Scenario: Retaining tariff schedules, billing counters, and communication parameters in electricity meters deployed in utility grids. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for metering registers and cryptographic keys accessed via isolated I²C bus. Use Value: Guarantees >200-year data retention under continuous operation at 60 °C ambient - meets ANSI C12.20 lifetime requirements. |
| PLC I/O Module Parameterization | Medical Device Serial Numbering |
|
Use Scenario: Holding channel-specific scaling factors, alarm thresholds, and input filter settings in modular programmable logic controller I/O cards. IC Role / Device Role / Timing Role: Configuration EEPROM mapped into host ARM Cortex-M4's peripheral address space via I²C GPIO expander interface. Use Value: Allows hot-swappable I/O modules to self-configure upon insertion - eliminating manual dip-switch setup or host-side database lookup. |
Use Scenario: Storing unique device identifiers, manufacturing date codes, and regulatory compliance flags in FDA-cleared infusion pumps. IC Role / Device Role / Timing Role: UDI-compliant persistent memory storing 16-byte serial number and 8-byte manufacturing lot code. Use Value: Supports ISO 13485 traceability requirements with >4M write cycles - enabling full lifecycle logging across 10,000+ units per production batch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C64D-SSHM-T (Microchip) | Same 64-Kbit capacity, 1.7–5.5 V, but only supports up to 400 kHz I²C; no WC pin - write protection relies on software lock bits. | Lacks hardware write disable; unsuitable for safety-critical systems requiring fail-safe memory lockdown during fault events. | Select when cost sensitivity outweighs need for hardware-level write lock and 1 MHz speed. |
| BR24G64FJ-WE2 (ROHM) | 64-Kbit, 1.7–5.5 V, supports 1 MHz I²C, includes WC pin, but rated only to +105 °C (vs. +85 °C for M24C64-FDW6TP) and has 100 µA max standby current (vs. 500 nA typical). | Better thermal margin for automotive under-hood use, but higher quiescent current limits battery-powered portable medical devices. | Select for extended temperature applications where ultra-low sleep current is not required. |
Compared with AT24C64D-SSHM-T and BR24G64FJ-WE2, the M24C64-FDW6TP uniquely balances 1 MHz I²C speed, hardware WC lock, sub-1 µA standby current, and industrial-grade temperature range - making it optimal for high-reliability, low-power, real-time configuration storage.
Availability
M24C64-FDW6TP is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter configuration storage, PLC I/O module parameterization, and medical device serial numbering requiring stable component supply across multi-year production cycles.
Supply support for M24C64-FDW6TP 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, specializing in microcontrollers, power management, MEMS, and nonvolatile memory solutions for industrial, automotive, and consumer markets.
The M24C64 series belongs to ST's serial EEPROM product line, engineered for robustness in harsh environments and seamless integration into resource-constrained embedded systems using standard I²C interfaces.
FAQ
What is the I²C address of M24C64-FDW6TP in the UFDFPN8 package?
The M24C64-FDW6TP in UFDFPN8 has E2–E0 internally tied to 001, fixing its 7-bit I²C address to 1010001b (0x51 for write, 0x50 for read). This is confirmed in Section 2.3 and Figure 5 of DS6638 Rev 38. No external pull-up or pull-down is needed on E0–E2 pins for this variant.
Does M24C64-FDW6TP support the identification page feature?
No - the identification page (32-byte lockable page) is exclusive to M24C64-D order codes. The M24C64-FDW6TP is an M24C64-F variant and does not include the identification page or associated lock instructions (Lock ID, Write ID Page). Its memory map is strictly 8 K × 8 bits of user EEPROM.
Can M24C64-FDW6TP operate at 1.6 V?
No - the M24C64-FDW6TP is rated for 1.7 V to 5.5 V over –40 °C to +85 °C. While the broader M24C64-F family may support 1.6 V under restricted conditions (e.g., limited temperature range or reduced speed), DS6638 Rev 38 specifies 1.7 V as the absolute minimum for this part number and package configuration.
Is ECC (error correction code) implemented in M24C64-FDW6TP?
ECC is present only in devices marked with process letter 'K' (e.g., M24C64-FDW6TPK). The standard M24C64-FDW6TP does not include ECC logic. ECC functionality is transparent to I²C protocol but improves read reliability by correcting single-bit errors within 4-byte groups - confirmed in Section 5.1.5 of DS6638 Rev 38.
M24C64-FDW6TP 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:
- 64Kbit
- Memory Organization:
- 8K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 450 ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
M24C64-FDW6TP FAQ
1.How can I place an order for M24C64-FDW6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C64-FDW6TP 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 M24C64-FDW6TP reliable?
The price and inventory of M24C64-FDW6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C64-FDW6TP is usually 5 days.
3.What payment methods are accepted for M24C64-FDW6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C64-FDW6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C64-FDW6TP?
M24C64-FDW6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C64-FDW6TP 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 M24C64-FDW6TP?
For technical support, including M24C64-FDW6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C64-FDW6TP requirements.
6.How does Aetrix verify that M24C64-FDW6TP is sourced from the original manufacturer or authorized distributors?
All M24C64-FDW6TP 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 M24C64-FDW6TP meets industry standards.
7.What is the process for return or replacement of M24C64-FDW6TP?
All M24C64-FDW6TP units undergo pre-shipment inspection (PSI). If there is an issue with M24C64-FDW6TP, 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 M24C64-FDW6TP part is unused and in its original packaging.
Return procedure for M24C64-FDW6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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