Microchip 93AA66C-I/SN, 4Kbit serial EEPROM, Microwire interface, 3 MHz clock, 1.8-5.5V supply, 512 x 8 / 256 x 16 organization, -40 to 85°C, 8-SOIC, Tube.
| Parameter | Value |
|---|---|
| Memory type | Non-Volatile |
| Mounting type | Surface Mount |
| Voltage | 1.8V ~ 5.5V |
| Frequency | 3 MHz |
| Memory interface | Microwire |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tube |
| Technology | EEPROM |
| Memory size | 4Kbit |
| Memory format | EEPROM |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Memory organization | 512 x 8, 256 x 16 |
| Write cycle time - word, page | 6ms |
The Microchip 93AA66C-I/SN is a 4 Kbit serial EEPROM using the Microwire interface, organized as 512 x 8 or 256 x 16 bits.
The 3 MHz clock rate is the key differentiator from the 93AA66B variant, which runs at 2 MHz. For a host controller that supports Microwire at 3 MHz, this part reduces the read/write cycle time by a third, which matters if the EEPROM is polled frequently during calibration or configuration load.
Submit an RFQ for this order code and we will return a firm price and lead time based on current distributor inventory and factory allocation.
The 93AA66C-I/SN runs at 3 MHz clock frequency, while the 93AA66B-I/MS is limited to 2 MHz. Both are 4 Kbit Microwire EEPROMs in the same 8-pin SOIC footprint, with identical supply range and temperature grade. The C variant is the faster option for designs that can use the extra bus speed.
Yes, it is ROHS3 Compliant. No exemptions or lead-bearing finishes are listed for this part number.