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Microchip Technology 24AA014HT-I/MNY
- Part No.:
- 24AA014HT-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24AA014HT-I/MNY.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,258
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Product details
Overview
24AA014HT-I/MNY from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM with industrial temperature range (–40°C to +85°C), 1.7V–5.5V supply operation, and hardware write-protection for the upper half-array (addresses 40h–7Fh). It supports up to 400 kHz clock frequency, features Schmitt-trigger inputs and slope-controlled outputs, and is used in embedded systems for nonvolatile storage of calibration data, configuration settings, and firmware parameters.
For engineers reviewing the 24AA014HT-I/MNY datasheet, 24AA014HT-I/MNY pinout, 24AA014HT-I/MNY application, or 24AA014HT-I/MNY equivalent, this page delivers verified electrical specs, package mapping to 8-pin TDFN, I²C timing constraints, half-array write-protect behavior, and real-world use cases in industrial control and sensor modules.
Technical Context
The 24AA014HT-I/MNY implements a standard two-wire I²C slave interface with fixed 7-bit address prefix '1010' and three user-configurable chip-select bits (A0–A2), enabling up to eight devices on one bus. Its internal architecture includes an address pointer, page buffer (16-byte depth), and HV generator for EEPROM programming.
Write operations are self-timed with a maximum 5 ms cycle time; read modes include current-address, random, and sequential reads with automatic address roll-over at 07Fh. Hardware write protection is controlled solely by the WP pin state-tied to VCC to lock addresses 40h–7Fh, or VSS to disable protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Kbit (128 × 8-bit array), organized as single block for contiguous addressing |
| Supply voltage | 1.7V–5.5V - enables direct interfacing with low-voltage microcontrollers (e.g., 1.8V logic) |
| I²C clock rate | Up to 400 kHz - compatible with standard-mode I²C without requiring high-speed mode support |
| Write endurance | 1 million erase/write cycles - ensures long-term reliability in field-updatable systems |
| Data retention | 200 years at 25°C - guarantees persistent storage across product lifecycles without refresh |
| Standby current | ≤1 μA at VCC = 5.5V - minimizes power draw in battery-backed or energy-harvesting applications |
| Page write buffer | 16 bytes - reduces I²C transaction count when writing consecutive data (e.g., sensor logs) |
Pinout & Package
24AA014HT-I/MNY is packaged in an 8-pin 2×3 mm TDFN (Thin Dual Flat No-lead) with wettable flanks, optimized for automated optical inspection and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip select input | LSB of 3-bit device address; sets bit A0 in control byte (1010 A2 A1 A0 R/W); must be hard-wired to VSS or VCC |
| A1 | Chip select input | Middle bit of device address; enables multi-device bus configuration with unique 7-bit slave addresses |
| A2 | Chip select input | MSB of device address; allows up to eight 24AA014HT-I/MNY devices on same I²C bus |
| VSS | Ground reference | Return path for all internal circuitry; requires low-impedance connection to system ground plane |
| SDA | Serial data bidirectional I/O | Open-drain output requiring external pull-up (2 kΩ typical for 400 kHz); carries address, data, and ACK/NACK |
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transfers; Schmitt-trigger input suppresses noise-induced glitches |
| WP | Hardware write-protect control | Active-high enable: ties VCC to protect addresses 40h–7Fh; ties VSS to allow full-array writes |
| VCC | Power supply | Accepts 1.7V–5.5V; internal voltage detector disables writes below ~1.5V to prevent corruption during brown-out |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger SCL/SDA inputs | ≥50 mV hysteresis (VHYS = 0.05 × VCC) - rejects EMI and bus noise without external filtering components |
| Output slope control | Controlled rise/fall times (TR/TF ≤ 300 ns at VCC ≥ 1.8V) - eliminates ground bounce in mixed-signal systems |
| Half-array hardware write-protect | Fixed 64-byte protected region (40h–7Fh) - safeguards critical firmware or calibration data from accidental overwrite |
| 100 kHz compatibility at 1.7V | Guaranteed operation down to 1.7V supply with 100 kHz clock - supports ultra-low-power sleep-mode communication |
| ESD protection | ≥4 kV HBM - meets IEC 61000-4-2 Level 2 for robustness in industrial environments |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile memory holding immutable calibration constants accessed at power-on reset via I²C. Use Value: Eliminates need for external calibration storage; 200-year data retention ensures accuracy over equipment lifetime without recalibration. |
Use Scenario: Saving user-adjusted therapy parameters (e.g., infusion rate, alarm thresholds) in portable insulin pumps. IC Role / Device Role / Timing Role: Secure, low-power configuration store retaining settings across battery swaps and shutdowns. Use Value: 1 μA standby current extends battery life; hardware write-protect prevents accidental parameter erasure during firmware updates. |
| Smart Meter Firmware Patching | Automotive Body Control Module |
|
Use Scenario: Holding small firmware patches or security keys downloaded over PLC or RF link in utility meters. IC Role / Device Role / Timing Role: Field-upgradable code storage with atomic page-write capability (16-byte buffer). Use Value: Page writes reduce I²C bus occupancy vs. byte writes; 1M endurance supports frequent patch deployments over 10+ years. |
Use Scenario: Storing vehicle-specific configuration (e.g., mirror position memory, lighting profiles) in BCM ECUs. IC Role / Device Role / Timing Role: Robust EEPROM interfaced to 5V microcontroller I²C port with noise-suppressed inputs. Use Value: Schmitt-trigger inputs and 4 kV ESD rating ensure reliable operation in electrically noisy automotive harness environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA014T-I/OT | Same 1 Kbit capacity, identical I²C interface and timing, but in 8-pin SOIC package (3.9 mm width) | SOIC footprint requires larger PCB area; lacks TDFN's thermal performance and density advantages | Select for legacy board compatibility or manual assembly where TDFN reflow is unavailable |
| AT24C01D-SSHM-T | 1 Kbit I²C EEPROM with 1.7V–5.5V operation, but only 100 kHz max clock at 1.7V and no hardware write-protect pin | Lacks dedicated WP pin - write protection requires software-only methods or external logic | Choose when cost sensitivity outweighs need for hardware-level data integrity assurance |
Compared with 24AA014HT-I/MNY, the 24AA014T-I/OT offers identical functionality in a through-hole-friendly package, while the AT24C01D-SSHM-T trades hardware write-protection for broader vendor availability but requires additional firmware safeguards for critical data.
Availability
24AA014HT-I/MNY is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and smart metering applications requiring stable component supply, extended temperature operation, and long-term data integrity.
Supply support for 24AA014HT-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 microcontrollers, analog devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing infrastructure.
The 24AA014HT-I/MNY belongs to Microchip's 24AAxxH family of low-voltage I²C EEPROMs, designed specifically for space-constrained, power-sensitive embedded systems needing reliable nonvolatile storage under wide supply and temperature ranges.
FAQ
What is the maximum I²C clock frequency supported by the 24AA014HT-I/MNY?
The 24AA014HT-I/MNY supports up to 400 kHz I²C clock frequency when VCC is ≥1.8V. At 1.7V ≤ VCC < 1.8V, maximum clock rate is limited to 100 kHz per DS22077B-page 3 AC Characteristics table. This dual-speed capability ensures interoperability with both legacy and modern I²C masters across its full operating voltage range.
How does hardware write-protection work on the 24AA014HT-I/MNY?
Hardware write-protection on the 24AA014HT-I/MNY is controlled exclusively by the WP pin: when tied to VCC, addresses 40h–7Fh (64 bytes) are locked against write or erase; when tied to VSS, full-array writes are permitted. The protection is active immediately upon power-up and cannot be overridden by I²C commands - ensuring fail-safe data integrity.
Can the 24AA014HT-I/MNY be used with a 1.8V microcontroller I²C interface?
Yes - the 24AA014HT-I/MNY operates from 1.7V to 5.5V and specifies I²C DC and AC characteristics down to 1.7V. Its Schmitt-trigger inputs and slope-controlled outputs ensure clean signal transitions and noise immunity when interfaced directly with 1.8V logic, eliminating level-shifter requirements in most designs.
What is the page write buffer size of the 24AA014HT-I/MNY?
The 24AA014HT-I/MNY features a 16-byte page write buffer. During a page write operation, the device accepts up to 16 consecutive bytes after the initial word address, storing them temporarily before committing all data to EEPROM in a single self-timed 5 ms write cycle - significantly reducing I²C bus overhead versus individual byte writes.
Is the 24AA014HT-I/MNY RoHS compliant and lead-free?
Yes - the 24AA014HT-I/MNY is Pb-free and RoHS compliant, as confirmed in the "Features" section of DS22077B-page 1. Its TDFN package uses matte tin (Sn) plating per JEDEC standards, and marking includes the "3e" Pb-free designation per Microchip's packaging documentation on page DS22077B-page 14.
24AA014HT-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:
- 1Kbit
- Memory Organization:
- 128 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)
24AA014HT-I/MNY FAQ
1.How can I place an order for 24AA014HT-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24AA014HT-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 24AA014HT-I/MNY reliable?
The price and inventory of 24AA014HT-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 24AA014HT-I/MNY is usually 5 days.
3.What payment methods are accepted for 24AA014HT-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24AA014HT-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24AA014HT-I/MNY?
24AA014HT-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24AA014HT-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 24AA014HT-I/MNY?
For technical support, including 24AA014HT-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24AA014HT-I/MNY requirements.
6.How does Aetrix verify that 24AA014HT-I/MNY is sourced from the original manufacturer or authorized distributors?
All 24AA014HT-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 24AA014HT-I/MNY meets industry standards.
7.What is the process for return or replacement of 24AA014HT-I/MNY?
All 24AA014HT-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24AA014HT-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 24AA014HT-I/MNY part is unused and in its original packaging.
Return procedure for 24AA014HT-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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