This document introduces the 24AA128/24LC128/24FC128 (24XX128*) device, a 16K x 8 (128 Kbit) Serial Electrically Erasable PROM (EEPROM) suitable for various low-power applications such as personal communications or data acquisition.
The 24AA128, 24LC128, and 24FC128 are 128‑Kbit (16K × 8) CMOS serial EEPROMs that operate over a wide voltage range and support low‑power applications. They are available in a variety of packages, including PDIP, SOIC, TSSOP, MSOP, and DFN.
Key features include low‑power operation, up to eight devices cascaded on a single I²C‑compatible bus, page‑write capability of 64 bytes, and robust endurance of one million erase/write cycles. Detailed electrical characteristics, pin functions, and bus timing are provided for designers.
| Maximum write current | 3 mA at 5.5 V |
|---|---|
| Standby current | 100 nA typical at 5.5 V |
| Maximum clock frequency (Vcc < 2.5 V) | 400 kHz |
| Maximum clock frequency (Vcc ≥ 2.5 V) | 1 MHz |
| Endurance | 1,000,000 erase/write cycles |
| Data retention | > 200 years |
| Cascadable devices | Up to eight devices |
Up to eight devices can be cascaded on a single bus (two for the MSOP package).
They are rated for 1,000,000 erase/write cycles.
Typical standby current is 100 nA at 5.5 V.