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*The following are the basic parameters of the product, involving the characteristics of the product and its category
| TYPE | DESCRIPTION | 
|---|---|
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 
| Mounting Type | Through Hole | 
| Mount | Through Hole | 
| Number of Functions | 1 | 
| RoHS Status | RoHS Compliant | 
| ECCN Code | EAR99 | 
| Pbfree Code | yes | 
| Radiation Hardening | No | 
| Contact Plating | Gold | 
| Lead Free | Lead Free | 
| Part Status | Obsolete | 
| JESD-609 Code | e4 | 
| Number of Pins | 8 | 
| Number of Terminations | 8 | 
| Pin Count | 8 | 
| Terminal Position | DUAL | 
| Supply Voltage | 5V | 
| Operating Supply Voltage | 5V | 
| Packaging | Tube | 
| Terminal Pitch | 2.54mm | 
| Technology | CMOS | 
| Published | 2007 | 
| Operating Temperature | -40°C~85°C TA | 
| Data Retention Time-Min | 100 | 
| Nominal Supply Current | 1mA | 
| Memory Type | Non-Volatile | 
| Memory Interface | SPI | 
| Halogen Free | Halogen Free | 
| Length | 10.16mm | 
| Memory Format | EEPROM | 
| Package / Case | 8-DIP (0.300, 7.62mm) | 
| Interface | Serial | 
| Voltage – Supply | 1.8V~5.5V | 
| Clock Frequency | 2MHz | 
| Height | 4.95mm | 
| Endurance | 1000000 Write/Erase Cycles | 
| Width | 7.11mm | 
| Access Time | 250 ns | 
| Standby Current-Max | 0.00001A | 
| Serial Bus Type | MICROWIRE | 
| Write Protection | SOFTWARE | 
| Density | 4 kb | 
| Organization | 256X16 | 
| Additional Feature | 100 YEAR DATA RETENTION | 
| Memory Size | 4Kb 512 x 8 256 x 16 | 
| Base Part Number | CAT93C66 | 
*The following components have specifications similar
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