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Microchip Technology 24FC16T-I/SN
- Part No.:
- 24FC16T-I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24FC16T-I/SN.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,069
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Product details
Overview
24FC16T-I/SN 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 maximum clock frequency, 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/SN datasheet, 24FC16T-I/SN pinout, 24FC16T-I/SN application, or 24FC16T-I/SN equivalent, key selection criteria include its 1 MHz I²C speed at 1.7V, hardware write-protect (WP) pin, 16-byte page buffer, Schmitt-trigger inputs for noise immunity, and SOIC-8 (SN) package compatibility with legacy footprint designs.
Technical Context
The 24FC16T-I/SN implements a two-wire I²C slave interface with fixed 7-bit address prefix '1010', block-select addressing (B2–B0), and R/W bit control. Its internal architecture includes an 8-bit address pointer, 16-byte page latch buffer, HV generator for EEPROM programming, and sense amplifier-based read path.
It supports byte and page write modes, current/random/sequential read operations, and acknowledge polling for write-cycle completion detection. Write protection is implemented via dedicated WP pin tied to VCC (full-array lock) or VSS (enabled).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8-bit), organized as eight 256-word blocks - enables modular configuration 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 by up to 16× vs. byte-write for contiguous data updates. |
| Write Cycle Time | ≤5 ms per byte or page - defines minimum inter-write interval for deterministic firmware timing. |
| Endurance & Retention | 1 million erase/write cycles; >200 years data retention - suitable for field-updatable calibration tables. |
| Supply Voltage Range | 1.7V to 5.5V - interoperable with 1.8V logic systems and legacy 3.3V/5V microcontrollers. |
| Temperature Range | Industrial: –40°C to +85°C - qualified for automotive body electronics and industrial PLC modules. |
Pinout & Package
24FC16T-I/SN is supplied in an 8-lead narrow SOIC package (JEDEC MS-012, suffix SN), 3.90 mm body width, with gull-wing leads and exposed pad not present. Pin 1 is marked by notch or bevel.
| 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 | Hardware write-protect input | Logic-high (VCC) disables all writes; logic-low (VSS) enables full read/write access - no software dependency. |
| SCL | Serial clock input | Open-drain compatible; requires external pull-up; synchronizes all I²C transactions with master-generated edges. |
| SDA | Serial data bidirectional I/O | Open-drain; shared bus line; requires external pull-up; carries address, data, and ACK/NACK signals. |
| VCC | Power supply | 1.7V–5.5V operation; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs on SDA/SCL | 50 mV hysteresis (0.05×VCC) - rejects <100 ns noise spikes on noisy industrial buses. |
| Output slope control | Controlled rise/fall times - eliminates ground bounce during fast transitions in dense PCB layouts. |
| ESD protection | ≥4 kV HBM - withstands handling and board-level ESD events without external TVS diodes. |
| Low-power operation | 1 μA max standby current (I-temp.) - extends battery life in always-on IoT endpoints. |
| RoHS & AEC-Q100 qualified | Automotive-grade reliability - validated for under-hood and infotainment subsystem use. |
Applications
| Smart Energy Meters | Industrial PLC Modules |
|---|---|
Use Scenario: Storing tariff schedules, meter calibration coefficients, and firmware update flags across power cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration register bank accessed via I²C during boot and runtime. Use Value: 1.7V operation ensures reliable writes during brown-out conditions; 1 MHz speed enables rapid parameter loading. |
Use Scenario: Retaining I/O mapping, PID tuning parameters, and diagnostic logs in programmable logic controllers. IC Role / Device Role / Timing Role: System-level configuration memory interfaced to ARM Cortex-M host MCU. Use Value: Hardware WP pin prevents accidental overwrites during firmware updates; 1 million endurance supports decades of field recalibration. |
| Automotive Body Controllers | Medical Sensor Calibration |
Use Scenario: Storing seat position memory, mirror angle presets, and lighting profiles in door modules. IC Role / Device Role / Timing Role: AEC-Q100-qualified EEPROM for user-persistent settings storage. Use Value: –40°C to +85°C rating matches vehicle cabin thermal envelope; SOIC-8 footprint simplifies layout reuse. |
Use Scenario: Holding factory-trimmed offset/gain values and sensor linearization tables in portable diagnostics devices. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory for critical calibration data. Use Value: >200-year data retention guarantees accuracy over device lifetime; 16-byte page writes reduce I²C transaction count during calibration upload. |
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/SN | Max I²C clock = 400 kHz at 1.7V–2.5V; 100 kHz below 2.5V - slower write throughput. | Limited to lower-speed hosts; less suitable for time-critical parameter updates. | Select when cost sensitivity outweighs speed requirement and 400 kHz suffices. |
| 24LC16BT-I/SN | Min VCC = 2.5V; no 1.7V operation - incompatible with 1.8V systems. | Cannot be used in ultra-low-voltage battery-powered designs. | Choose only if system operates ≥2.5V and legacy 24LC16B footprint reuse is mandatory. |
Compared with 24AA16T-I/SN and 24LC16BT-I/SN, the 24FC16T-I/SN uniquely delivers 1 MHz I²C performance down to 1.7V while maintaining identical SOIC-8 packaging and pinout - enabling drop-in speed upgrades without layout changes.
Availability
24FC16T-I/SN is available at Aetrix Electronics and suitable for smart energy meters, industrial PLC modules, and automotive body controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 24FC16T-I/SN 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, FPGA, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24FC16T-I/SN belongs to Microchip's 24XX16 family of serial EEPROMs, designed specifically for robust, low-voltage, high-speed nonvolatile storage in space-constrained embedded systems.
FAQ
What is the maximum I²C clock frequency supported by the 24FC16T-I/SN?
The 24FC16T-I/SN supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V supply range. This is confirmed in the Device Selection Table and AC Characteristics section of DS20001703M, distinguishing it from the 24AA16 (400 kHz) and 24LC16B (400 kHz, min 2.5V). The 1 MHz capability enables faster configuration loading in time-sensitive applications.
Does the 24FC16T-I/SN require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC16T-I/SN 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, per Microchip's bus timing guidelines. Pull-ups must connect to the same VCC rail used by the device to ensure proper logic levels and noise margin.
How does the Write-Protect (WP) pin function on the 24FC16T-I/SN?
On the 24FC16T-I/SN, the WP pin is a dedicated hardware enable/disable control: tying WP to VCC inhibits all write operations (including page and byte writes) while preserving read functionality; tying WP to VSS enables full read/write access. This behavior is electrically enforced and requires no firmware intervention - critical for fail-safe configuration locking.
What is the page write buffer size of the 24FC16T-I/SN, and how does it affect write efficiency?
The 24FC16T-I/SN features a 16-byte page write buffer. This allows up to 16 contiguous bytes to be written in a single I²C transaction, reducing bus overhead by up to 16× compared to individual byte writes. Each page write still incurs one 5 ms self-timed erase/write cycle, but minimizes host CPU involvement and bus arbitration latency.
Is the 24FC16T-I/SN AEC-Q100 qualified, and what grade does it meet?
Yes, the 24FC16T-I/SN is AEC-Q100 qualified per the "Automotive AEC-Q100 Qualified" feature listed in the datasheet. It meets Grade 2 requirements (–40°C to +105°C ambient), and its specified industrial temperature range (–40°C to +85°C) aligns with common automotive body electronics and infotainment subsystems.
24FC16T-I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- 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-SOIC
24FC16T-I/SN FAQ
1.How can I place an order for 24FC16T-I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC16T-I/SN 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/SN reliable?
The price and inventory of 24FC16T-I/SN 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/SN is usually 5 days.
3.What payment methods are accepted for 24FC16T-I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC16T-I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC16T-I/SN?
24FC16T-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC16T-I/SN 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/SN?
For technical support, including 24FC16T-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC16T-I/SN requirements.
6.How does Aetrix verify that 24FC16T-I/SN is sourced from the original manufacturer or authorized distributors?
All 24FC16T-I/SN 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/SN meets industry standards.
7.What is the process for return or replacement of 24FC16T-I/SN?
All 24FC16T-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24FC16T-I/SN, 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/SN part is unused and in its original packaging.
Return procedure for 24FC16T-I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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