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AT93C66B-SSHM-T
EEPROM 4KBIT 3-WIRE SERIAL 8SOIC
Microchip Technology
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Design a Custom BoardAbout This Component
The AT93C66B is a 4-kilobit three-wire serial EEPROM available in 512x8 or 256x16 organization. It operates from 1.7V to 5.5V with a 2 MHz clock rate and supports self-timed write cycles completing within 5 milliseconds. Rated for 1 million write cycles and 100-year data retention, this industrial-grade device is ideal for embedded systems requiring non-volatile configuration storage.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Microchip Technology |
| Part Number | AT93C66B-SSHM-T |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Clock Frequency | 2 MHz |
| Memory Interface | 3-Wire Serial |
| Memory Size | 4Kbit |
| Voltage - Supply | 1.7V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x AT93C66B-SSHM-T soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL