Microchip Technology Inc. 24AA32 is a 4K x 8 (32K bit) Serial Electrically Erasable PROM capable of operation across a broad voltage range (1.8V to 6.0V). This device has been developed for advanced, low power applications such as personal communications or data acquisition. The 24AA32 features an input cache for fast write loads with a capacity of eight 8-byte pages, or 64 bytes. It also features a fixed 4K-bit block of ultra-high end
The 24AA32 is a 4K × 8 (32 Kbit) serial EEPROM from Microchip Technology, designed for low‑power applications with a wide operating voltage range of 1.8 V to 6.0 V. It supports up to eight devices on a single I²C‑compatible two‑wire bus, providing up to 256 Kbits total memory.
Key features include high‑endurance memory blocks (10 M write cycles), low standby current, ESD protection over 4000 V, and fast write performance using an internal 64‑byte cache. The device is offered in 8‑pin PDIP and SOIC packages and operates from 0 °C to +70 °C (commercial) or –40 °C to +85 °C (industrial).
| Operating voltage range | 1.8 V to 6.0 V |
|---|---|
| Peak write current | 3 mA at 6.0 V |
| Maximum read current | 150 pA at 6.0 V |
| High‑endurance write cycles | 10 M cycles |
| Standard endurance write cycles | 1 M cycles |
| Package options | 8‑pin PDIP, 8‑pin SOIC |
| Data retention | >200 years |
| ESD protection | >4000 V |
| Maximum clock frequency (Fast mode) | 400 kHz |
| Typical write cycle time | 2 ms |
| Page size | 8 bytes |
| Input cache size | 64 bytes (8 lines) |
The device operates from 1.8 V up to 6.0 V.
It is guaranteed for 10 million erase/write cycles.
The EEPROM is offered in 8‑pin PDIP and 8‑pin SOIC packages.
Maximum read current is 150 pA when powered at 6.0 V.