24AA128/24LC128/24FC128 is a 16K x 8 (128K bit) Serial Electrically Erasable PROM from Microchip Technology Inc., capable of operation across a broad voltage range (1.8V to 5.5V). It has been developed for advanced, low power applications such as personal communications or data acquisition. The device also has a page-write capability of up to 64 bytes of data. This device is capable of both random and sequential reads up to the 128K boundary. Functional address lines allow up to eight devices on the same bus, for up to 1M bit address space. The device is available in the standard 8-pin plastic DIP, 8-pin SOIC (150 and 208 mil), and 14-pin TSSOP packages.
The Microchip 24AA128/24LC128/24FC128 series are 128‑bit (16 K × 8) serial EEPROM devices that operate over a wide voltage range and support I²C‑compatible two‑wire communication. They are available in 8‑pin PDIP, 8‑pin SOIC and 14‑pin TSSOP packages and offer low‑power operation, page‑write capability of up to 64 bytes, and up to 100 k erase/write cycles.
The document provides detailed electrical characteristics, pin functions, bus timing, write and read procedures, and product identification information, including temperature ranges for commercial, industrial and automotive grades.
| Memory size | 128 Kbit (16 K × 8) |
|---|---|
| Maximum write current | 3 mA at 5.5 V |
| Maximum read current | 400 µA at 5.5 V |
| Standby current | 100 nA typical at 5.5 V |
| Page‑write size | 64 bytes |
| Endurance | 100 000 erase/write cycles |
| Data retention | > 200 years |
| Temperature range (commercial) | 0 °C – +70 °C |
| Temperature range (industrial) | -40 °C – +85 °C |
| Temperature range (automotive) | -40 °C – +125 °C |
| Package options | 8‑pin PDIP, 8‑pin SOIC (150 / 208 mil), 14‑pin TSSOP |
The maximum write current is 3 mA at a supply voltage of 5.5 V.
Up to eight devices can be connected to the same bus using different chip‑select bits.
They support page‑write of up to 64 bytes per write operation.