The AT93C46 is a 1024-bit serial electrically erasable programmable read only memory (EEPROM) organized as 64 words of 16 bits each, when the ORG pin is connected to VCC and 128 words of 8 bits each when it is tied to ground. The device is optimized for use in many automotive applications where low power and low voltage operations are essential.
The AT93C46 is a 1024‑bit serial electrically erasable programmable read‑only memory (EEPROM) organized as 64 × 16‑bit or 128 × 8‑bit words, depending on the ORG pin setting. It operates with a three‑wire serial interface (DI, DO, SK) and is offered in 8‑lead TSSOP and 8‑lead JEDEC SOIC packages, making it suitable for space‑constrained automotive applications.
The document details absolute maximum ratings, DC and AC electrical characteristics, pin capacitance, instruction set, and timing diagrams. It also includes mechanical dimensions for the TSSOP package and a revision history of the document.
| Write Cycle Endurance | 1 Million cycles |
|---|---|
| Data Retention | 100 years |
| Self‑timed Write Cycle | 10 ms max |
The device is rated for 1 Million write cycles.