Microchip Technology 24C00T-I/MNY

Overview

24C00T-I/MNY from Microchip Technology Inc. is a 128-bit (16 × 8) I²C-compatible serial EEPROM designed for low-overhead nonvolatile storage of calibration data, device IDs, and manufacturing parameters in space-constrained industrial systems. It operates strictly within 4.5–5.5 V, supports 100 kHz/400 kHz I²C clock rates, delivers typical read current of 500 µA, and guarantees >1 million erase/write cycles with >200 years data retention.

For engineers reviewing the 24C00T-I/MNY datasheet, 24C00T-I/MNY pinout, 24C00T-I/MNY application, or 24C00T-I/MNY equivalent, this page provides verified electrical specs, validated SOT-23 pin mapping, confirmed industrial temperature range (−40°C to +85°C), and real-world substitution guidance - all derived from Microchip's DS20001178J datasheet and official package documentation.

Technical Context

The 24C00T-I/MNY implements a fixed 128-bit memory array accessed via standard two-wire I²C protocol with slave address 1010xxx0/1 (R/W bit). Its internal address pointer auto-increments during sequential reads, and it uses Schmitt-trigger inputs with 50 ns spike suppression to ensure bus robustness in electrically noisy environments.

Write operations are self-timed with typical 3 ms page write time and built-in V_CC threshold detection (3.8 V nominal) that disables programming if supply drops below specification. Acknowledge polling is supported to determine write completion without fixed delays, enabling deterministic bus scheduling in real-time embedded firmware.

Key Specifications

Pinout & Package

24C00T-I/MNY is supplied in a 5-lead SOT-23 package (Microchip drawing C04-028D/091D), measuring 2.90 mm × 1.60 mm × 1.30 mm, with lead pitch of 0.95 mm and RoHS-compliant matte tin plating. The exposed pad is not present in SOT-23; thermal dissipation relies on PCB copper area under pins 2 (V_SS) and 5 (V_CC).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24C00T-I/MNY, the 24AA00T-I/MNY enables lower-voltage operation but lacks V_CC lockout at 3.8 V, while the AT24C01A-PU offers greater density at the cost of package incompatibility and increased minimum component count.

Availability

24C00T-I/MNY is available at Aetrix Electronics and suitable for industrial control modules, smart sensor calibration, and medical device parameter storage requiring stable component supply, long-lifecycle support, and guaranteed RoHS compliance.

Supply support for 24C00T-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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and memory products, with a focus on industrial, automotive, and aerospace reliability standards.

The 24XX00 family-including 24C00T-I/MNY-is engineered for minimal-footprint, low-power nonvolatile storage in cost-sensitive embedded systems where deterministic I²C access and long-term data integrity are essential.

FAQ

What is the maximum I²C clock frequency supported by the 24C00T-I/MNY?

The 24C00T-I/MNY supports both standard-mode (100 kHz) and fast-mode (400 kHz) I²C operation when powered within its specified 4.5–5.5 V range. Clock timing parameters-including THIGH, TLOW, and TSU:DAT-are fully characterized for both speeds in Microchip's DS20001178J datasheet, ensuring interoperability with common microcontroller I²C peripherals without bus arbitration issues.

Does the 24C00T-I/MNY require an external pull-up resistor on the SDA line?

Yes, the 24C00T-I/MNY requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. For 400 kHz operation, Microchip recommends a 2 kΩ pull-up to V_CC; for 100 kHz, 10 kΩ is acceptable. These values ensure proper rise times (<300 ns) and noise margin while limiting bus current during low states.

Can the 24C00T-I/MNY be used in a 3.3 V system?

No, the 24C00T-I/MNY is not rated for 3.3 V operation. Its absolute minimum V_CC is 4.5 V, and its internal V_CC detector disables writes below ~3.8 V. Attempting to operate at 3.3 V will result in unpredictable read behavior and failed write cycles. Use 24AA00T-I/MNY instead for 1.8–5.5 V compatibility.

How many write cycles can the 24C00T-I/MNY endure before failure?

The 24C00T-I/MNY is specified for more than 1 million erase/write cycles per memory location, validated through accelerated life testing per JEDEC standards. This endurance rating applies across the full industrial temperature range (−40°C to +85°C) and supports daily field updates for over 27 years assuming one write per day.

Is the 24C00T-I/MNY pin-compatible with other 24XX00 family members in SOT-23?

Yes, all 24XX00 variants-including 24AA00T-I/MNY, 24LC00T-I/MNY, and 24C00T-I/MNY-in the 5-lead SOT-23 package share identical pinout (SCL, V_SS, SDA, NC, V_CC). However, they differ in V_CC range, internal voltage threshold, and qualification testing; direct substitution requires verification of supply voltage and system-level timing margins.