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Microchip Technology AT24C16C-STUM-T
- Part No.:
- AT24C16C-STUM-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AT24C16C-STUM-T.pdf
- Description:
- IC EEPROM 16KBIT I2C SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,273
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Product details
Overview
AT24C16C-STUM-T from Microchip Technology is a 16-Kbit I²C-compatible serial EEPROM organized as 2,048 × 8 bits, operating from 1.7V to 5.5V with industrial temperature range (−40°C to +85°C), 1 MHz Fast Mode Plus support at ≥2.5V, and hardware write protection via dedicated WP pin - used for nonvolatile parameter storage in embedded controllers, sensor calibration modules, and power management ICs.
For engineers reviewing the AT24C16C-STUM-T datasheet, AT24C16C-STUM-T pinout, AT24C16C-STUM-T application, or AT24C16C-STUM-T equivalent, key selection criteria include VCC voltage range compatibility, I²C bus speed mode support (Standard/Fast/Fast Mode Plus), page write capability (16-byte pages), write endurance (1M cycles), and package-specific pin mapping for SOIC-8 footprint integration.
Technical Context
The AT24C16C-STUM-T implements a true I²C slave interface with open-drain SDA/SCL pins, Schmitt-triggered inputs, and integrated noise filtering. It supports three I²C speed modes: 100 kHz (1.7–5.5V), 400 kHz (1.7–5.5V), and 1 MHz Fast Mode Plus (2.5–5.5V), with strict tLOW/tHIGH timing compliance per mode.
Internally, it uses an 11-bit address space (A10–A0) mapped across 128 pages of 16 bytes each, enabling partial-page writes and sequential reads. A dedicated WP pin provides hardware-level full-array write protection, and Power-on Reset (POR) ensures reliable initialization with tPUP ≥100 µs after stable VCC ≥1.7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2,048 × 8), supporting 11-bit addressing and 128-page architecture |
| VCC Range | 1.7V to 5.5V - enables direct interfacing with 1.8V, 3.3V, and 5V microcontrollers without level shifting |
| I²C Speed Modes | 100 kHz (Std), 400 kHz (Fast), 1 MHz (Fast Mode Plus) - selectable by supply voltage and external clock rate |
| Write Endurance | 1,000,000 cycles - supports frequent calibration data updates in field-deployed systems |
| Data Retention | 100 years at 55°C - ensures long-term reliability in industrial control and automotive subsystems |
| Active/Standby Current | ≤3 mA active (5V, 100 kHz read), ≤6 μA standby (5.5V) - critical for battery-backed or energy-harvesting applications |
| Write Cycle Time | ≤5 ms max self-timed write - enables deterministic firmware timeout handling without polling overhead |
Pinout & Package
AT24C16C-STUM-T is supplied in an 8-lead SOIC package (SOIC-8, 150 mil width), with pin 1 marked by a notch or dot. All pins are electrically defined per Microchip DS20006051A; no NC pins are bonded in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for VCC and signal levels; must connect to system ground plane for noise immunity |
| 2 | SDA | Open-drain bidirectional I²C data line; requires external pull-up resistor (≤10 kΩ) shared across bus |
| 3 | SCL | Input-only I²C clock line; must be pulled high externally or driven actively by master |
| 4 | WP | Hardware write-protect input; logic low = normal writes, logic high = full-array protection, floating = internal pull-down to GND |
| 5 | VCC | Power supply input; must ramp monotonically at ≤0.1 V/µs during power-up to avoid POR failure |
| 6–8 | NC | No-connect; not internally bonded - left unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte page write mode | Enables efficient bulk configuration storage with single-command multi-byte writes, reducing I²C transaction overhead by up to 94% vs. byte writes |
| Schmitt-triggered inputs | Provides ≥100 ns spike suppression on SDA/SCL, eliminating need for external RC filters in noisy industrial environments |
| Dedicated WP pin | Allows runtime hardware lock/unlock of entire memory array - essential for secure boot parameter integrity and field firmware update safety |
| Green RoHS-compliant packaging | Meets lead-free, halide-free, and RoHS Directive 2011/65/EU requirements for global industrial and medical product certifications |
| ESD protection >4 kV | Withstands HBM ESD events without latch-up or data corruption - validated per JEDEC JS-001, simplifying board-level ESD design |
Applications
| Industrial Sensor Calibration | Embedded Controller Configuration |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients and temperature compensation tables in pressure, humidity, and current-sense sensors. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with guaranteed 100-year retention and 1M write cycles, accessed via I²C during sensor power-up or recalibration. Use Value: Eliminates need for external trimming components and enables field recalibration without solder rework or firmware reflashing. | Use Scenario: Holding boot-time configuration flags, network MAC addresses, and user-defined settings in PLC I/O modules and motor drives. IC Role / Device Role / Timing Role: System configuration register bank, accessed during MCU initialization using standard I²C read/write sequences at 400 kHz. Use Value: Enables zero-touch deployment with unique device identity and configurable behavior without modifying main firmware binaries. |
| Power Management IC Settings | Medical Device Audit Logs |
Use Scenario: Saving overvoltage/undervoltage thresholds, fault recovery delays, and thermal shutdown limits in PMICs for telecom and server power supplies. IC Role / Device Role / Timing Role: Critical safety-critical parameter store, protected by hardware WP pin during normal operation to prevent accidental corruption. Use Value: Ensures fail-safe behavior even after unexpected power loss or brownout, with <5 ms write cycle guaranteeing fast save before shutdown. | Use Scenario: Recording timestamped usage events, calibration history, and error codes in portable diagnostic equipment compliant with IEC 62304. IC Role / Device Role / Timing Role: Tamper-resistant audit trail storage, written sequentially with time-stamped entries and verified CRC before each write. Use Value: Meets FDA 21 CFR Part 11 electronic record requirements via deterministic write timing and hardware write protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16D-STUM-T | Same 16-Kbit capacity and SOIC-8 package, but supports extended VCC range (1.7–5.5V) and identical AC/DC specs; minor die revision with enhanced ESD robustness. | No functional difference in I²C protocol, timing, or memory map; drop-in replacement for new designs requiring latest qualification. | Select AT24C16D-STUM-T for new designs where Microchip's latest wafer fab process and updated reliability testing are required. |
| M24C16-WMN6TP | 16-Kbit I²C EEPROM in SOIC-8, but rated only for Standard/Fast mode (100/400 kHz), no Fast Mode Plus; max VCC = 5.5V, min VCC = 1.8V (not 1.7V). | Lacks 1 MHz support and 1.7V operation - unsuitable for ultra-low-voltage or high-speed bus implementations. | Choose M24C16-WMN6TP only when 400 kHz maximum speed and 1.8V minimum VCC meet system requirements and cost is primary driver. |
Compared with AT24C16C-STUM-T, AT24C16D-STUM-T offers identical functionality with improved process reliability, while M24C16-WMN6TP trades speed and low-voltage capability for lower unit cost - making AT24C16C-STUM-T optimal for mixed-voltage, high-integrity industrial designs requiring guaranteed 1.7V startup and 1 MHz flexibility.
Availability
AT24C16C-STUM-T is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded controller configuration, and power management IC settings requiring stable component supply, long-lifecycle assurance, and RoHS-compliant sourcing.
Supply support for AT24C16C-STUM-T 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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and memory solutions, with ISO 9001-certified quality systems and global distribution.
The AT24C16C-STUM-T belongs to Microchip's AT24Cxx family of I²C serial EEPROMs, designed specifically for low-power, wide-VCC industrial and commercial applications requiring high endurance and long data retention.
FAQ
What is the maximum I²C clock frequency supported by AT24C16C-STUM-T?
The AT24C16C-STUM-T supports 100 kHz (Standard mode), 400 kHz (Fast mode), and 1 MHz (Fast Mode Plus). Fast Mode Plus operation requires VCC ≥2.5V; below that, only Standard and Fast modes are guaranteed per Microchip DS20006051A.
Does AT24C16C-STUM-T require external pull-up resistors on SDA and SCL lines?
Yes, AT24C16C-STUM-T requires external pull-up resistors on both SDA and SCL. SDA is open-drain and must use ≤10 kΩ; SCL may be actively driven or pulled up similarly. Values depend on bus capacitance and target speed - e.g., 4 kΩ for 400 kHz, 1.3 kΩ for 1 MHz.
How does the WP pin function on AT24C16C-STUM-T?
On AT24C16C-STUM-T, the WP pin enables hardware write protection: tied to GND → full-array writes allowed; tied to VCC → all writes inhibited; left floating → internally pulled down to GND. Microchip recommends hard-wiring WP to a known state to prevent noise-induced protection errors.
What is the typical write cycle time for AT24C16C-STUM-T?
The AT24C16C-STUM-T has a maximum self-timed write cycle time of 5 ms, applicable to both byte and page writes. This value is guaranteed across the full industrial temperature range (−40°C to +85°C) and VCC range (1.7–5.5V), enabling predictable firmware timeout implementation.
Is AT24C16C-STUM-T compatible with 1.8V I²C buses?
Yes, AT24C16C-STUM-T fully supports 1.8V I²C operation: VCC can be as low as 1.7V, and it meets Standard (100 kHz) and Fast (400 kHz) mode timing at 1.8V per DS20006051A Table 4-3 - including tLOW ≥1200 ns and tHIGH ≥600 ns.
AT24C16C-STUM-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- 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:
- 550 ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AT24C16C-STUM-T FAQ
1.How can I place an order for AT24C16C-STUM-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16C-STUM-T 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 AT24C16C-STUM-T reliable?
The price and inventory of AT24C16C-STUM-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C16C-STUM-T is usually 5 days.
3.What payment methods are accepted for AT24C16C-STUM-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16C-STUM-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16C-STUM-T?
AT24C16C-STUM-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16C-STUM-T 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 AT24C16C-STUM-T?
For technical support, including AT24C16C-STUM-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16C-STUM-T requirements.
6.How does Aetrix verify that AT24C16C-STUM-T is sourced from the original manufacturer or authorized distributors?
All AT24C16C-STUM-T 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 AT24C16C-STUM-T meets industry standards.
7.What is the process for return or replacement of AT24C16C-STUM-T?
All AT24C16C-STUM-T units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16C-STUM-T, 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 AT24C16C-STUM-T part is unused and in its original packaging.
Return procedure for AT24C16C-STUM-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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