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Microchip Technology 24FC16T-I/ST
- Part No.:
- 24FC16T-I/ST
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
24FC16T-I/ST.pdf
- Description:
- IC EEPROM 16KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
24FC16T-I/ST from Microchip Technology Inc. is a 16-Kbit I²C-compatible serial EEPROM organized as eight 256 × 8-bit blocks, operating from 1.7V to 5.5V with 1 MHz clock support, 5 ms max page write time, and industrial temperature range (–40°C to +85°C). It serves as nonvolatile configuration storage in embedded controllers, sensor nodes, and power management ICs.
For engineers reviewing the 24FC16T-I/ST datasheet, 24FC16T-I/ST pinout, 24FC16T-I/ST application, or 24FC16T-I/ST equivalent, key selection criteria include its 1 MHz I²C speed at 1.7V, hardware write-protect via WP pin, 16-byte page buffer, Schmitt-trigger inputs for noise immunity, and SOIC-8 packaging with verified pin mapping.
Technical Context
The 24FC16T-I/ST implements a two-wire I²C slave interface with fixed 7-bit address prefix '1010' and three block-select bits (B2–B0), enabling access to eight 256-word memory blocks. Its internal Address Pointer auto-increments during sequential reads and supports current-address, random, and sequential read modes.
Write operations include byte-write and page-write (up to 16 bytes per page), with self-timed erase/write cycles and ACK polling for completion detection. The device uses an on-chip HV generator for EEPROM programming and features slope-controlled outputs to suppress ground bounce.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8), organized as eight 256-word blocks - enables modular firmware/config partitioning |
| I²C Clock Frequency | Up to 1 MHz at 1.7V–5.5V - supports high-speed host communication without level-shifting |
| Page Write Buffer | 16 bytes - reduces bus overhead vs. byte-write; requires software boundary checking |
| Write Protection | Hardware-enabled via WP pin tied to VCC - prevents accidental writes during power-up/down transients |
| Endurance & Retention | 1 million erase/write cycles; >200 years data retention - suitable for field-updatable systems |
| Supply Current | 1 μA max standby (I-temp), 1 mA max active read - optimized for battery-backed or low-power IoT nodes |
| ESD Rating | >4 kV HBM - enhances robustness in handling-sensitive industrial assembly environments |
Pinout & Package
24FC16T-I/ST is supplied in an 8-lead SOIC (SN) package with standard 150-mil body width and 1.27 mm pitch. Pin 1 is marked by a beveled corner or notch; exposed pad is not present in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance connection to system GND plane |
| WP | Write-protect control input | Logic-high disables all writes (000h–7FFh); logic-low enables full read/write access |
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transactions; Schmitt-triggered for noise margin |
| SDA | Serial data bidirectional I/O | Open-drain output requiring external pull-up; carries addresses, data, and ACK/NACK signals |
| VCC | Power supply | 1.7V–5.5V operation; decoupling capacitor (0.1 μF) required within 10 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C compatibility at 1.7V | Enables direct interfacing with modern low-voltage MCUs (e.g., ARM Cortex-M0+) without clock throttling |
| Schmitt-trigger SCL/SDA inputs | Provides ≥50 mV hysteresis (0.05×VCC) to reject EMI-induced glitches on noisy PCBs |
| Output slope control | Limits dV/dt on SDA/SCL to prevent ground bounce in dense mixed-signal layouts |
| Factory programming option | Allows pre-loading of calibration data or security keys before board assembly |
| AEC-Q100 qualified | Validated for automotive applications including body electronics and infotainment modules |
Applications
| Industrial Sensor Calibration | Smart Meter Firmware Storage |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during power-on initialization via I²C at 400 kHz. Use Value: Eliminates need for external trimming components; enables field recalibration with write-protection disabled only during service mode. | Use Scenario: Holding firmware update images and cryptographic keys in utility-grade electricity meters with tamper detection. IC Role / Device Role / Timing Role: Secure boot loader storage accessed by metering SoC during cold start; WP pin hardwired to VCC for runtime protection. Use Value: Prevents malicious firmware overwrites while supporting authenticated OTA updates via controlled WP toggle sequence. |
| Medical Device Parameter Backup | Automotive Body Control Module |
Use Scenario: Preserving user-configured therapy parameters (e.g., infusion rate, alarm thresholds) across power cycles in portable drug pumps. IC Role / Device Role / Timing Role: Low-power backup memory accessed intermittently via I²C; operates down to 1.7V during brownout conditions. Use Value: Ensures regulatory-compliant data persistence without supercapacitor or battery backup circuitry. | Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in vehicle door modules. IC Role / Device Role / Timing Role: I²C slave on LIN-to-I²C bridge; withstands automotive temperature cycling (–40°C to +85°C). Use Value: AEC-Q100 qualification guarantees reliability under engine-bay thermal stress and vibration. |
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/ST | Max I²C speed 400 kHz (100 kHz below 2.5V); identical 16Kbit organization and SOIC-8 package | Limited to lower-speed hosts; suitable where timing margins are constrained or legacy MCU I²C peripherals are used | Select when 1 MHz operation is unnecessary and cost sensitivity favors AA-series pricing |
| AT24C16D-SSHM-T | Same 16Kbit size, SOIC-8, and 1 MHz I²C, but rated only to 85°C (no extended temp grade); different write-cycle timing | Not qualified for automotive or extended industrial use; lacks AEC-Q100 validation | Choose for commercial-grade consumer devices where ambient temperature stays below 70°C |
Compared with 24AA16T-I/ST, the 24FC16T-I/ST delivers 2.5× higher I²C throughput at low voltage, while AT24C16D-SSHM-T offers footprint compatibility but sacrifices automotive reliability and low-voltage performance.
Availability
24FC16T-I/ST is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and automotive subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 24FC16T-I/ST 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 devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24FC16T-I/ST belongs to Microchip's 24XX16 family of serial EEPROMs, engineered for reliable nonvolatile data storage in space-constrained, low-power, and electrically noisy embedded systems.
FAQ
What is the maximum I²C clock frequency supported by the 24FC16T-I/ST?
The 24FC16T-I/ST supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V supply range. This is distinct from the 24AA16 (max 400 kHz) and 24LC16B (max 400 kHz, minimum 2.5V), making the 24FC16T-I/ST optimal for high-throughput host interfaces. Timing parameters such as THIGH (260 ns min) and TLOW (500 ns min) are specified to ensure signal integrity at this speed.
How does the WP pin function on the 24FC16T-I/ST?
The WP (Write-Protect) pin on the 24FC16T-I/ST is a logic-level input: when tied to VCC, it disables all write operations to the entire 16-Kbit memory array (addresses 000h–7FFh), while read operations remain fully functional. When tied to VSS or left floating (not recommended), full read/write access is enabled. This hardware lock prevents inadvertent writes during power transitions or firmware faults.
Does the 24FC16T-I/ST require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC16T-I/ST requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Recommended values are 2 kΩ for 1 MHz operation and 10 kΩ for 100 kHz. Pull-ups must connect to the same VCC domain as the 24FC16T-I/ST to ensure valid logic levels and meet VIH/VIL thresholds per the datasheet.
What is the page write capability of the 24FC16T-I/ST?
The 24FC16T-I/ST features a 16-byte page write buffer, allowing up to 16 bytes to be written in a single I²C transaction. Page boundaries align to 16-byte offsets (e.g., 00h–0Fh, 10h–1Fh). Crossing a boundary causes wraparound within the same page - software must enforce alignment to avoid data corruption. Maximum write time remains 5 ms regardless of byte count per page.
Is the 24FC16T-I/ST qualified for automotive applications?
Yes, the 24FC16T-I/ST is AEC-Q100 qualified for automotive applications. It is rated for the industrial temperature range (–40°C to +85°C), meets stringent reliability and stress-test requirements defined by the AEC-Q100 standard, and is commonly deployed in body control modules, infotainment systems, and ADAS-related subsystems where EEPROM data integrity is safety-critical.
24FC16T-I/ST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- 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:
- 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
24FC16T-I/ST FAQ
1.How can I place an order for 24FC16T-I/ST through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC16T-I/ST 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 24FC16T-I/ST reliable?
The price and inventory of 24FC16T-I/ST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24FC16T-I/ST is usually 5 days.
3.What payment methods are accepted for 24FC16T-I/ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC16T-I/ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC16T-I/ST?
24FC16T-I/ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC16T-I/ST 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 24FC16T-I/ST?
For technical support, including 24FC16T-I/ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC16T-I/ST requirements.
6.How does Aetrix verify that 24FC16T-I/ST is sourced from the original manufacturer or authorized distributors?
All 24FC16T-I/ST 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 24FC16T-I/ST meets industry standards.
7.What is the process for return or replacement of 24FC16T-I/ST?
All 24FC16T-I/ST units undergo pre-shipment inspection (PSI). If there is an issue with 24FC16T-I/ST, 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 24FC16T-I/ST part is unused and in its original packaging.
Return procedure for 24FC16T-I/ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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