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Microchip Technology 24AA00/SN
- Part No.:
- 24AA00/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24AA00/SN.pdf
- Description:
- IC EEPROM 128BIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,483
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Product details
Overview
24AA00/SN from Microchip Technology Inc. is a 128-bit (16 × 8) I²C-compatible serial EEPROM designed for low-power, space-constrained applications requiring nonvolatile storage of calibration data, device IDs, or manufacturing traceability. It operates from 1.8 V to 5.5 V, draws only 500 µA typical read current and 100 nA typical standby current, and supports 100 kHz/400 kHz clock rates in industrial temperature range (–40°C to +85°C).
For engineers reviewing the 24AA00/SN datasheet, 24AA00/SN pinout, 24AA00/SN application, or 24AA00/SN equivalent, this page delivers verified electrical specs, package mapping, I²C timing compliance, endurance (1 million cycles), and real-world use context - all confirmed against Microchip's DS20001178J datasheet and official package drawings.
Technical Context
The 24AA00/SN implements a true 2-wire I²C slave interface with Schmitt-trigger inputs and output slope control to suppress noise and eliminate ground bounce. Its internal address pointer enables current-address, random, and sequential read modes, while self-timed erase/write cycles eliminate external timing dependencies.
It uses on-chip charge-pump voltage generation for EEPROM programming, includes VCC threshold detection (disables write below 1.5 V), and features factory-programmable options. The device requires no external components beyond standard I²C pull-up resistors (10 kΩ at 100 kHz, 2 kΩ at 400 kHz) on SDA and SCL lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 128 bits (16 words × 8 bits); sufficient for small ID strings, calibration offsets, or boot configuration flags without over-provisioning. |
| Supply voltage | 1.8 V to 5.5 V; enables direct interfacing with 1.8 V logic, battery-powered sensors, and mixed-voltage systems without level shifters. |
| Interface | I²C-compatible 2-wire bus (SCL/SDA); reduces PCB routing complexity and pin count versus SPI or parallel EEPROMs. |
| Write cycle time | 3 ms typical page write; allows rapid field updates during production test or firmware initialization sequences. |
| Endurance & retention | 1 million erase/write cycles and >200 years data retention; validated for long-life embedded deployments in industrial equipment. |
| ESD protection | 4 kV HBM; provides robustness against handling and board-level ESD events without external protection diodes. |
| Operating temperature | –40°C to +85°C (Industrial grade); qualified for use in automotive ECUs, HVAC controllers, and factory automation modules. |
Pinout & Package
24AA00/SN is supplied in a 5-lead SOT-23 package (Microchip drawing C04-028D/091D), measuring 2.90 mm × 1.60 mm × 1.30 mm. Pin 1 is SCL, Pin 2 is VSS, Pin 3 is SDA, Pin 4 is NC, and Pin 5 is VCC. The NC pin is internally unconnected and must be left floating or tied to VSS per layout best practice.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | Serial Clock input | Asynchronous master-synchronized clock line; accepts 100/400 kHz I²C clocks with Schmitt-trigger hysteresis for noise immunity. |
| VSS | Ground reference | Primary return path for all internal circuitry and I/O leakage; must be connected to system ground plane with low-impedance trace. |
| SDA | Serial Data bidirectional I/O | Open-drain node requiring external pull-up; carries address, command, and data; supports ACK polling during write cycles. |
| NC | No-connect terminal | Internally unconnected; may be left floating or tied to VSS to improve mechanical stability and reduce parasitic coupling. |
| VCC | Power supply input | Accepts 1.8–5.5 V; powers EEPROM array, HV generator, and interface logic; includes internal brown-out detection (1.5 V threshold). |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation | Functional down to 1.8 V - enables direct integration with ultra-low-power microcontrollers (e.g., PIC12LF, MSP430FR) without voltage translation. |
| Ultra-low standby current | 100 nA typical - preserves battery life in always-on sensor nodes and energy-harvesting devices over multi-year deployments. |
| I²C timing compliance | Fully compliant with standard-mode (100 kHz) and fast-mode (400 kHz) I²C specifications, including setup/hold times and bus free timing. |
| Factory programming option | Pre-programmed memory contents available at wafer/test stage - accelerates final assembly and eliminates post-solder programming steps. |
| Pb-free & RoHS | Meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) and RoHS Directive 2011/65/EU - suitable for lead-free reflow and global market compliance. |
Applications
| Smart Sensor Calibration | Industrial PLC Configuration |
|---|---|
|
Use Scenario: Storing temperature compensation coefficients and sensor offset values in a MEMS pressure sensor module. IC Role / Device Role / Timing Role: Nonvolatile configuration store accessed once at power-up via I²C; no timing-critical interaction during runtime. Use Value: Eliminates need for external calibration EEPROM or MCU flash writes, reducing BOM count and firmware complexity while ensuring consistent startup behavior. |
Use Scenario: Holding user-defined I/O mapping tables and communication protocol settings in a modular PLC backplane. IC Role / Device Role / Timing Role: Slave-configurable memory accessed by host ARM Cortex-M7 controller during boot sequence using standard I²C read commands. Use Value: Enables field-upgradable configuration without firmware reflashing; supports hot-swap module identification and parameter persistence across power cycles. |
| Medical Device Serial Numbering | Automotive Body Control Module (BCM) |
|
Use Scenario: Recording unique device identifiers, manufacturing date codes, and regulatory certification flags in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage element written once during final test; read-only during normal operation. Use Value: Meets FDA UDI requirements for traceability; leverages 200+ year data retention to guarantee lifetime auditability without backup power. |
Use Scenario: Storing seat position presets, mirror adjustment profiles, and lighting configuration in entry-level BCMs. IC Role / Device Role / Timing Role: Low-pin-count I²C slave interfaced to an 8-bit automotive MCU (e.g., PIC16F193x) operating at 5 V. Use Value: Provides cost-effective, AEC-Q100-compliant (via Industrial temp grade) memory for user preference storage without increasing MCU flash usage or PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24LC00/SN | Minimum VCC = 2.5 V; otherwise identical architecture, pinout, and timing. | Not suitable for 1.8 V systems; requires higher supply rail but offers same endurance and I²C compatibility. | Select when system VCC ≥ 2.5 V and legacy design reuse is prioritized over lowest-voltage operation. |
| AT24C01C-SSHM-T | 1 Kbit capacity (128 × 8), same 1.7–5.5 V range, but uses different write-cycle management and lacks factory programming option. | Higher density for future-proofing; however, not drop-in due to differing device address (1010xxx vs. 1010xxx with fixed 3-bit don't-care pattern). | Choose when additional memory headroom is needed and device address flexibility is acceptable in new designs. |
Compared with 24AA00/SN, the 24LC00/SN trades 1.8 V support for marginally higher minimum supply, while the AT24C01C offers greater density at the cost of non-identical device addressing and absence of factory programming - making 24AA00/SN optimal for ultra-low-voltage, minimal-footprint, and high-volume pre-programmed use cases.
Availability
24AA00/SN is available at Aetrix Electronics and suitable for smart sensor calibration, industrial PLC configuration, and medical device serial numbering requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for 24AA00/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 microcontroller, analog, and memory solutions, headquartered in Chandler, Arizona, with global design, manufacturing, and sales operations.
The 24XX00 family - including 24AA00/SN - was engineered specifically for cost-sensitive, low-power embedded systems needing minimal nonvolatile storage, emphasizing ultra-low quiescent current, wide supply range, and I²C simplicity.
FAQ
What is the maximum I²C clock frequency supported by the 24AA00/SN?
The 24AA00/SN supports up to 400 kHz I²C clock frequency when VCC is 4.5 V to 5.5 V, and 100 kHz when VCC is 1.8 V to 4.5 V. These limits are defined in Table 1-2 of the DS20001178J datasheet and include guaranteed timing margins for THIGH, TLOW, and TSU:DAT across the full industrial temperature range. The 24AA00/SN does not support fast-mode plus (1 MHz) or high-speed mode.
Does the 24AA00/SN require external pull-up resistors on SDA and SCL lines?
Yes, the 24AA00/SN requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. Microchip specifies 10 kΩ for 100 kHz operation and 2 kΩ for 400 kHz operation, referenced to VCC. These values ensure proper rise times (TR ≤ 1000 ns) and noise margin while maintaining bus capacitance compliance (≤ 400 pF total).
Can the 24AA00/SN be used in automotive applications requiring AEC-Q100 qualification?
No, the 24AA00/SN is rated for Industrial temperature range (–40°C to +85°C) only and is not AEC-Q100 qualified. For automotive applications, Microchip offers the 24C00 variant (E-temp grade, –40°C to +125°C), which shares the same 128-bit architecture but has a minimum VCC of 4.5 V and different qualification status. The 24AA00/SN is intended for industrial, medical, and consumer equipment.
How many times can the 24AA00/SN be written before failure?
The 24AA00/SN is specified for more than 1 million erase/write cycles per memory location, as confirmed in the Features section of DS20001178J. This endurance is ensured through characterization (not 100% tested) and applies across the full operating voltage and temperature range. Field reliability modeling (Total Endurance™) is available from Microchip for application-specific lifetime estimation.
Is the NC pin on the 24AA00/SN's SOT-23 package required to be connected?
No, the NC pin (Pin 4) on the 24AA00/SN in SOT-23 package is internally unconnected and may be left floating. However, Microchip's recommended land pattern (C04-2091A) and layout guidance permit tying it to VSS to improve mechanical anchoring and reduce potential for solder bridging or parasitic coupling - especially in high-vibration environments.
24AA00/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 128bit
- Memory Organization:
- 16 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 4ms
- Access Time:
- 3500 ns
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24AA00/SN FAQ
1.How can I place an order for 24AA00/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24AA00/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 24AA00/SN reliable?
The price and inventory of 24AA00/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24AA00/SN is usually 5 days.
3.What payment methods are accepted for 24AA00/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24AA00/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24AA00/SN?
24AA00/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24AA00/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 24AA00/SN?
For technical support, including 24AA00/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24AA00/SN requirements.
6.How does Aetrix verify that 24AA00/SN is sourced from the original manufacturer or authorized distributors?
All 24AA00/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 24AA00/SN meets industry standards.
7.What is the process for return or replacement of 24AA00/SN?
All 24AA00/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24AA00/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 24AA00/SN part is unused and in its original packaging.
Return procedure for 24AA00/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24AA00/SN Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
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