Microchip Technology AT93C66A-10SU-1.8 Memory Integrated Circuit
IC EEPROM 4KBIT SPI 2MHZ 8SOIC
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
AT93C66A-10SU-1.8
Detailed Description
IC EEPROM 4KBIT SPI 2MHZ 8SOIC
Package
8-SOIC (0.154", 3.90mm Width)
Key Features
Package / Case: 8-SOIC (0.154", 3.90mm Width); Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
AT93C66A-10SU-1.8 Datasheet
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Technical Specifications
Microchip Technology AT93C66A-10SU-1.8 Memory Integrated Circuit technical specifications.
General
Memory Size
4Kb (512 x 8, 256 x 16)
RoHS
ROHS3 Compliant
Package / Case
8-SOIC
Packaging
Tube
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
1.8V ~ 5.5V
Lifecycle Status
Obsolete
Technology
EEPROM
Memory Type
Non-Volatile
Related Parts Comparison (AT93C66A-10SU-1.8 vs AT24MAC402-SSHM-T vs AT24C08BN-SH-B vs 24LC01BT-E/SN)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TA) |
| Supply Voltage | 1.8V ~ 5.5V | 1.7V ~ 5.5V | 1.8V ~ 5.5V | 2.5V ~ 5.5V |
| Memory Size | 4Kb (512 x 8, 256 x 16) | 2Kb (256 x 8) | 8Kb (1K x 8) | 1Kb (128 x 8) |
| RoHS | ROHS3 Compliant | Compliant | ROHS3 Compliant | Compliant |
| Lifecycle Status | Obsolete | Active | Obsolete | Active |
| Clock Frequency | 2 MHz | 1 MHz | 1 MHz | 400 kHz |
| Max Frequency | 2 MHz | 1 MHz | 1 MHz | 400 kHz |
| Memory Format | EEPROM | EEPROM | EEPROM | EEPROM |
| Memory Interface | SPI | I²C | I²C | I²C |
| Memory Type | Non-Volatile | Non-Volatile | Non-Volatile | Non-Volatile |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
CAT93C66VI-GT3onsemiDirectonsemi
Pin YesPkg YesElec Yes
4Kb EEPROM, Microwire Serial, SOIC 8, 250ns Access, 5.5V
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