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Microchip Technology 24C00T-E/SN
- Part No.:
- 24C00T-E/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24C00T-E/SN.pdf
- Description:
- IC EEPROM 128BIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,475
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Product details
Overview
24C00T-E/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 at 4.5–5.5 V, supports 100 kHz and 400 kHz clock rates, delivers typical read current of 500 µA, and offers >1 million erase/write cycles with >200 years data retention. Its 5-pin SOT-23 package enables compact integration in automotive and industrial control modules.
For engineers reviewing the 24C00T-E/SN datasheet, 24C00T-E/SN pinout, 24C00T-E/SN application, or 24C00T-E/SN equivalent, key selection criteria include its automotive-grade temperature range (−40°C to +125°C), Schmitt-trigger noise immunity on SDA/SCL, self-timed 3 ms write cycle, and compatibility with standard I²C bus timing requirements including ACK polling support.
Technical Context
The 24C00T-E/SN functions exclusively as an I²C slave device, responding to a fixed 7-bit slave address (1010xxx) with R/W bit control. It implements internal address pointer logic enabling current-address, random, and sequential read modes, and uses a VCC threshold detector (3.8 V nominal) to disable write operations during undervoltage conditions.
Its architecture includes Schmitt-trigger inputs and input filtering (50 ns spike suppression) on both SDA and SCL pins, slope-controlled outputs to minimize ground bounce, and open-drain I/O requiring external pull-up resistors (2 kΩ recommended for 400 kHz). The device does not generate ACK during internal write cycles - a behavior leveraged by ACK polling for write completion detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 128 bits (16 × 8), sufficient for small configuration tokens or unique identifiers without over-provisioning. |
| Supply voltage | 4.5–5.5 V only - requires stable regulated rail; no operation below 4.5 V due to internal VCC detector threshold. |
| Interface | I²C-compatible 2-wire serial bus - interoperable with standard microcontroller I²C peripherals without protocol translation. |
| Clock frequency | Up to 400 kHz - supports faster firmware updates than legacy 100 kHz EEPROMs while maintaining noise robustness. |
| Write cycle time | Typical 3 ms - enables rapid field-programming of calibration values without blocking host CPU for extended periods. |
| Data retention | >200 years - ensures long-term reliability in unpowered storage for automotive ECUs and industrial sensors. |
| Endurance | 1 million erase/write cycles - suitable for applications requiring frequent reprogramming, such as adaptive learning parameters. |
Pinout & Package
24C00T-E/SN is supplied in a Pb-free, RoHS-compliant 5-pin SOT-23 package (Microchip drawing C04-028D/OT), measuring 2.90 mm × 1.60 mm × 1.10 mm with gull-wing leads. Pin 1 is marked via laser etch or mold feature per JEDEC MO-178.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | Serial Clock input | Asynchronous edge-triggered clock line; must be pulled up externally; controls timing of all data transfers. |
| SDA | Serial Data bidirectional I/O | Open-drain bus line shared across multiple devices; requires external pull-up; carries address, data, and ACK signals. |
| VCC | Positive supply | 4.5–5.5 V power input; internal UVLO disables writes if voltage drops below ~3.8 V to prevent corruption. |
| VSS | Ground reference | System return path for all internal circuitry and I/O; must be low-impedance to ensure noise margin on SDA/SCL. |
| NC | No connect | Internally unconnected pin - must remain floating; no routing or PCB trace required. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Provides 0.05×VCC hysteresis on SDA/SCL - rejects fast transients up to 50 ns, eliminating need for external RC filtering. |
| Output slope control | Controls rise/fall edges on SDA - prevents ground bounce-induced glitches during high-speed switching on shared PCB planes. |
| ACK polling support | Enables host to detect write completion without fixed delays - improves bus utilization in time-critical embedded systems. |
| Automotive temperature grade | Rated −40°C to +125°C - qualified for under-hood and transmission-control applications without derating. |
| ESD protection | 4 kV HBM on all pins - reduces risk of field failure during handling or system-level ESD events. |
Applications
| Automotive Body Control Module | Industrial Sensor Calibration Storage |
|---|---|
|
Use Scenario: Storing vehicle-specific configuration (e.g., door lock timing, mirror position presets) in BCM firmware. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during boot and runtime via I²C; retains values across ignition cycles. Use Value: Enables OEM customization without firmware reflash; 128-bit capacity matches typical ID+config token size. |
Use Scenario: Holding factory-calibrated offset/gain coefficients for analog sensor front-ends in pressure or temperature transmitters. IC Role / Device Role / Timing Role: Read-once-at-boot EEPROM used by ADC driver to correct raw measurements before digital processing. Use Value: Eliminates need for external trimming components; >200-year retention ensures lifetime calibration stability. |
| Smart Meter Firmware Patch Storage | Medical Device Serial Number Registry |
|
Use Scenario: Securely storing minor firmware patches or security keys in utility smart meters deployed in harsh outdoor environments. IC Role / Device Role / Timing Role: Write-infrequently, read-rarely EEPROM accessed only during OTA update verification or secure boot. Use Value: Automotive-grade temp range and 1M-cycle endurance tolerate infrequent but mission-critical field updates. |
Use Scenario: Recording unique UDI (Unique Device Identifier) and manufacturing lot codes in Class II medical diagnostic equipment. IC Role / Device Role / Timing Role: One-time-programmable (OTP-capable) memory written during final test and sealed for regulatory traceability. Use Value: Factory programming option and >200-year data retention meet FDA 21 CFR Part 11 and ISO 13485 archival requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA00T-I/SN | Lower VCC range (1.8–5.5 V); industrial temp only (−40°C to +85°C); same 128-bit density and I²C interface. | Not qualified for automotive under-hood use; suitable for consumer or industrial control where wide voltage operation is needed. | Select when system operates below 4.5 V or requires broader supply flexibility; verify thermal environment compliance. |
| AT24C01C-SSHM-T | 1 Kbit (128 × 8) capacity; same 4.5–5.5 V range and automotive temp rating; identical SOT-23-5 pinout and I²C timing. | Offers 8× more memory; higher endurance (1M vs 1M - same spec); slightly higher ICC active current (1 mA vs 0.5 mA typical). | Choose when future firmware expansion or multi-parameter logging is anticipated; no PCB change required. |
Compared with 24C00T-E/SN, the 24AA00T-I/SN trades automotive qualification for wider voltage tolerance, while the AT24C01C-SSHM-T provides scalable memory headroom within the same footprint and temperature envelope - both serve distinct design priorities without compromising I²C interoperability.
Availability
24C00T-E/SN is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor calibration, and medical device traceability applications requiring stable component supply, long-lifecycle assurance, and AEC-Q200-aligned reliability.
Supply support for 24C00T-E/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 global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with a focus on embedded control and connectivity.
The 24C00T-E/SN belongs to Microchip's legacy 24XX00 family of ultra-small serial EEPROMs, engineered specifically for cost-sensitive, space-constrained applications needing minimal nonvolatile storage - especially in automotive and industrial settings where reliability and qualification matter.
FAQ
What is the minimum operating voltage for the 24C00T-E/SN?
The 24C00T-E/SN requires a minimum supply voltage of 4.5 V. Unlike the 24AA00 or 24LC00 variants, it lacks low-voltage operation capability - its internal voltage detector disables write functionality below ~3.8 V to prevent data corruption, and the device will not function at all below 4.5 V.
Does the 24C00T-E/SN support standard I²C addressing and ACK protocols?
Yes, the 24C00T-E/SN uses a fixed 7-bit I²C slave address of 1010xxx (where xxx are "don't care" bits), fully compliant with standard I²C specifications. It generates ACK after successful address matching and data reception, and suspends ACK during internal write cycles - enabling reliable ACK polling for write completion detection.
Can the 24C00T-E/SN be used in place of the 24LC00T-I/SN?
No - the 24C00T-E/SN and 24LC00T-I/SN differ in supply range (4.5–5.5 V vs 2.5–5.5 V), temperature grade (automotive E vs industrial I), and internal UVLO threshold (3.8 V vs 1.5 V). Substitution would risk functional failure in low-voltage or non-automotive environments unless system-level validation confirms full electrical and thermal compatibility.
What is the purpose of the NC pin on the 24C00T-E/SN SOT-23 package?
The NC (No Connect) pin on the 24C00T-E/SN is internally unconnected and must remain electrically floating - no PCB trace, pull-up, or pull-down should be applied. It serves as a mechanical placeholder in the 5-pin SOT-23 layout and has no electrical function; connecting it may cause unpredictable behavior or damage.
How does the 24C00T-E/SN handle noise on the I²C bus?
The 24C00T-E/SN incorporates Schmitt-trigger inputs with 0.05×VCC hysteresis and dedicated input filtering (50 ns spike suppression) on both SDA and SCL pins. This dual-stage noise rejection eliminates the need for external RC filters and ensures robust operation in electrically noisy automotive or industrial environments without false start/stop detection.
24C00T-E/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:
- 128bit
- Memory Organization:
- 16 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 100 kHz
- Write Cycle Time - Word, Page:
- 4ms
- Access Time:
- 3.5 µs
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24C00T-E/SN FAQ
1.How can I place an order for 24C00T-E/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24C00T-E/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 24C00T-E/SN reliable?
The price and inventory of 24C00T-E/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24C00T-E/SN is usually 5 days.
3.What payment methods are accepted for 24C00T-E/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24C00T-E/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24C00T-E/SN?
24C00T-E/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24C00T-E/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 24C00T-E/SN?
For technical support, including 24C00T-E/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24C00T-E/SN requirements.
6.How does Aetrix verify that 24C00T-E/SN is sourced from the original manufacturer or authorized distributors?
All 24C00T-E/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 24C00T-E/SN meets industry standards.
7.What is the process for return or replacement of 24C00T-E/SN?
All 24C00T-E/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24C00T-E/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 24C00T-E/SN part is unused and in its original packaging.
Return procedure for 24C00T-E/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24C00T-E/SN Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
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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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