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Microchip Technology 24AA16T-I/MNY

Name: 24AA16T-I/MNY
Brand: Microchip Technology
SKU: 24AA16T-I/MNY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 24AA16T-I/MNY

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-WFDFN Exposed Pad

Datasheet:: 24AA16T-I/MNY.pdf

Description:: IC EEPROM 16KBIT I2C 8TDFN

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Product details

Overview

24AA16T-I/MNY 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 400 kHz max clock frequency (100 kHz below 2.5V), 1 μA standby current, and industrial temperature range (–40°C to +85°C). It features hardware write-protection via the WP pin and is packaged in an 8-lead DFN (MNY) with exposed pad.

For engineers reviewing the 24AA16T-I/MNY datasheet, 24AA16T-I/MNY pinout, 24AA16T-I/MNY application, or 24AA16T-I/MNY equivalent, key selection criteria include low-voltage operation down to 1.7V, page-write capability (16-byte buffer), Schmitt-trigger inputs for noise immunity, self-timed erase/write cycle (≤5 ms), and RoHS-compliant industrial-grade reliability.

Technical Context

The 24AA16T-I/MNY functions as an I²C slave device with fixed 4-bit control code '1010' and 3-bit block-select addressing, supporting up to eight 256-word memory blocks. Its internal Address Pointer auto-increments during sequential reads and page writes, enabling efficient burst access within a 16-byte page boundary.

It implements open-drain SDA/SCL interfaces with integrated Schmitt triggers and output slope control to suppress ground bounce and noise spikes. Write protection is implemented via a dedicated WP pin tied to VCC (full-array lockout) or VSS (enabled), independent of I²C commands.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	16 Kbit (2048 × 8), organized as eight 256-word blocks for selective block addressing
V_CC Range	1.7V to 5.5V - enables direct interface with 1.8V/3.3V/5V systems without level-shifting
Max Clock Frequency	400 kHz (≥2.5V); 100 kHz (1.7V ≤ V_CC < 2.5V) - ensures timing compliance across supply voltages
Page Write Buffer	16 bytes - reduces write overhead by batching up to 16 bytes per Stop-initiated cycle
Write Cycle Time	≤5 ms (self-timed) - eliminates need for external delay polling except during ACK polling
Data Retention	>200 years - validated at 85°C, supports long-life embedded deployments
Endurance	1,000,000 erase/write cycles - specified at 25°C/5.5V, page-mode operation

Pinout & Package

24AA16T-I/MNY is housed in an 8-lead DFN package (MNY designation), 2 mm × 3 mm body, 0.5 mm pitch, with exposed thermal pad (recommended to be connected to VSS for thermal and EMI performance).

Pin/Terminal	Circuit Role	Design Meaning
VSS	Ground reference	Primary return path for all internal circuitry; exposed pad connection recommended
WP	Hardware write-protect input	Logic-high (VCC) disables all writes to entire memory array; no software override
SCL	Serial clock input	Open-drain compatible; requires external pull-up; synchronizes all I²C transfers
SDA	Serial data bidirectional I/O	Open-drain; shared bus line requiring pull-up; carries address, data, and ACK/NACK
VCC	Power supply	Supports 1.7V–5.5V operation; powers EEPROM core, logic, and HV generator
A0, A1, A2	No-connect (NC)	Internally unconnected; may be left floating or tied to VSS/VCC with no functional impact

Key Features

Feature	Design Value
Schmitt-trigger inputs	Ensures robust noise immunity on SCL/SDA with ≥50 mV hysteresis (0.05×V_CC)
Output slope control	Prevents ground bounce during SDA transitions, critical for mixed-signal PCB layouts
I²C compatibility	Fully compliant with standard-mode (100 kHz) and fast-mode (400 kHz) I²C protocol
16-byte page write	Reduces firmware overhead and bus occupancy vs. byte-write; improves system throughput
ESD protection	>4 kV HBM - exceeds JEDEC JS-001 Class 2, suitable for handling in non-ESD-controlled environments

Applications

Industrial Sensor Calibration Storage	Medical Device Configuration Memory
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and linearization tables in programmable logic controllers and RTUs. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed at power-up and during field recalibration via I²C master MCU. Use Value: Enables traceable, tamper-resistant calibration data retention over >200 years and 1M+ write cycles, meeting IEC 61508 SIL-2 requirements.	Use Scenario: Holding patient-specific therapy parameters and device serialization data in portable infusion pumps and diagnostic monitors. IC Role / Device Role / Timing Role: Secure, low-power parameter store interfaced to ARM Cortex-M host via I²C during boot and runtime updates. Use Value: 1.7V operation allows direct use with single-cell Li-ion backup; WP pin prevents accidental overwrite during firmware updates.
Automotive Body Control Module NVM	Smart Energy Meter Firmware Settings
Use Scenario: Saving user preferences (mirror position, seat memory), fault logs, and adaptive lighting profiles in BCMs. IC Role / Device Role / Timing Role: Industrial-temp (-40°C to +85°C) EEPROM acting as persistent data sink for CAN-connected microcontrollers. Use Value: AEC-Q100 qualified variant available; this 24AA16T-I/MNY meets automotive ambient temp requirements with proven 1M-cycle endurance.	Use Scenario: Storing tariff schedules, meter ID, CT ratio, and firmware update flags in ANSI C12.20-compliant smart meters. IC Role / Device Role / Timing Role: Tamper-evident configuration storage accessed infrequently but requiring guaranteed 200-year data integrity. Use Value: Hardware WP pin ensures settings remain immutable during power-loss events or brownouts, satisfying ANSI C12.10 security mandates.

Industrial Sensor Calibration Storage

Medical Device Configuration Memory

Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and linearization tables in programmable logic controllers and RTUs.

IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed at power-up and during field recalibration via I²C master MCU.

Use Value: Enables traceable, tamper-resistant calibration data retention over >200 years and 1M+ write cycles, meeting IEC 61508 SIL-2 requirements.

Use Scenario: Holding patient-specific therapy parameters and device serialization data in portable infusion pumps and diagnostic monitors.

IC Role / Device Role / Timing Role: Secure, low-power parameter store interfaced to ARM Cortex-M host via I²C during boot and runtime updates.

Use Value: 1.7V operation allows direct use with single-cell Li-ion backup; WP pin prevents accidental overwrite during firmware updates.

Automotive Body Control Module NVM

Smart Energy Meter Firmware Settings

Use Scenario: Saving user preferences (mirror position, seat memory), fault logs, and adaptive lighting profiles in BCMs.

IC Role / Device Role / Timing Role: Industrial-temp (-40°C to +85°C) EEPROM acting as persistent data sink for CAN-connected microcontrollers.

Use Value: AEC-Q100 qualified variant available; this 24AA16T-I/MNY meets automotive ambient temp requirements with proven 1M-cycle endurance.

Use Scenario: Storing tariff schedules, meter ID, CT ratio, and firmware update flags in ANSI C12.20-compliant smart meters.

IC Role / Device Role / Timing Role: Tamper-evident configuration storage accessed infrequently but requiring guaranteed 200-year data integrity.

Use Value: Hardware WP pin ensures settings remain immutable during power-loss events or brownouts, satisfying ANSI C12.10 security mandates.

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial EEPROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
24LC16B-I/MNY	Requires minimum 2.5V V_CC; no 1.7V operation; same 400 kHz speed and package	Not suitable for 1.8V systems; otherwise functionally identical in I²C protocol and pinout	Select only if system V_CC ≥2.5V and legacy qualification suffices
24AA16T-I/MS	Same electrical specs, but in 8-lead MSOP package (3 mm × 3 mm, 0.65 mm pitch)	Requires PCB layout change; offers better thermal dissipation than DFN for high-ambient designs	Choose when MSOP footprint is preferred for reworkability or thermal management

Compared with 24LC16B-I/MNY, the 24AA16T-I/MNY enables lower-voltage operation critical for battery-powered devices; compared with 24AA16T-I/MS, it offers smaller footprint and improved thermal coupling via exposed pad-both alternatives retain identical I²C functionality and memory architecture.

Availability

24AA16T-I/MNY is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, automotive body control modules, and smart energy metering requiring stable component supply across extended product lifecycles.

Supply support for 24AA16T-I/MNY 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 microcontroller, analog, FPGA, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.

The 24AA16T-I/MNY belongs to Microchip's 24XX16 family of I²C serial EEPROMs, designed specifically for cost-sensitive, low-power embedded systems requiring reliable nonvolatile storage with minimal board space and BOM count.

FAQ

What is the maximum I²C clock frequency supported by the 24AA16T-I/MNY?

The 24AA16T-I/MNY supports up to 400 kHz when V_CC ≥2.5V, and 100 kHz when V_CC is between 1.7V and 2.5V. This dual-speed capability ensures interoperability across 1.8V, 3.3V, and 5V I²C buses without external clock dividers or protocol translation.

Does the 24AA16T-I/MNY require external pull-up resistors on SDA and SCL lines?

Yes, the 24AA16T-I/MNY uses open-drain SDA and SCL pins and requires external pull-up resistors. Typical values are 10 kΩ for 100 kHz, 2 kΩ for 400 kHz, and 1 kΩ for 1 MHz (though 24AA16T-I/MNY does not support 1 MHz). Pull-ups must connect to the same V_CC domain as the 24AA16T-I/MNY.

How does hardware write-protection work on the 24AA16T-I/MNY?

When the WP pin of the 24AA16T-I/MNY is tied to V_CC, all write operations (byte and page) to the full 2048-byte memory array are inhibited; read operations remain fully functional. Tying WP to V_SS enables normal read/write access. No I²C command can override this hardware lock.

Can the 24AA16T-I/MNY be used in automotive applications?

The 24AA16T-I/MNY is rated for industrial temperature (–40°C to +85°C) and is RoHS-compliant. While not AEC-Q100 qualified itself, the pin-compatible 24AA16T-E/MNY (extended temp) and automotive-grade variants (e.g., 24AA16T-I/SN with AEC-Q100) are available. For under-hood use, select the AEC-Q100 qualified version.

What is the purpose of the A0, A1, and A2 pins on the 24AA16T-I/MNY?

The A0, A1, and A2 pins on the 24AA16T-I/MNY are not internally connected and serve no functional role. They may be left floating or tied to V_SS/V_CC without affecting operation - unlike higher-density EEPROMs, this device uses only the fixed '1010' control code and block-select bits for addressing.

24AA16T-I/MNY Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 8-WFDFN Exposed Pad

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:: 400 kHz

Write Cycle Time - Word, Page:: 5ms

Access Time:: 900 ns

Voltage - Supply:: 1.7V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-TDFN (2x3)

24AA16T-I/MNY FAQ

1.How can I place an order for 24AA16T-I/MNY through Aetrix?

Please submit a Request for Quotation (RFQ) for 24AA16T-I/MNY 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 24AA16T-I/MNY reliable?

The price and inventory of 24AA16T-I/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24AA16T-I/MNY is usually 5 days.

3.What payment methods are accepted for 24AA16T-I/MNY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24AA16T-I/MNY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 24AA16T-I/MNY?

24AA16T-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 24AA16T-I/MNY 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 24AA16T-I/MNY?

For technical support, including 24AA16T-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24AA16T-I/MNY requirements.

6.How does Aetrix verify that 24AA16T-I/MNY is sourced from the original manufacturer or authorized distributors?

All 24AA16T-I/MNY 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 24AA16T-I/MNY meets industry standards.

7.What is the process for return or replacement of 24AA16T-I/MNY?

All 24AA16T-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24AA16T-I/MNY, 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 24AA16T-I/MNY part is unused and in its original packaging.

Return procedure for 24AA16T-I/MNY:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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