
Blue interface board
BetzDrive/interface-board
Power and signal conditioning board for the Betz Drive system

The 93LC56B/SN is an EEPROM made by Microchip Technology in a SOIC-8 package with 8 pins. 0℃~+70℃ 1,000,000 cycles 2.5V~5.5V 200 Years 2Kbit 2MHz Built-in power-on reset (POR)、Built-in write enable latch (WEL)、Power-down/Power-up protection circuit SPI SOIC-8 EEPROM ROHS.
PCBKit's library has its KiCad symbol (Memory_EEPROM:93LCxxB, from KiCad's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 29 are in stock at JLCPCB (part C615404). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | CS | Input |
| 2 | SCLK | Input |
| 3 | DI | Input |
| 4 | DO | Tri-state |
| 5 | GND | Power in |
| 6 | NC | Not connected |
| 7 | NC | Not connected |
| 8 | VCC | Power in |

BetzDrive/interface-board
Power and signal conditioning board for the Betz Drive system
<iframe src="https://pcbkit.io/embed/parts/microchip/93LC56B/SN" title="93LC56B/SN in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/93LC56B/SN.jpg" alt="93LC56B/SN" width="1200" height="900">[](https://pcbkit.io/parts/microchip/93LC56B/SN)Yes. The symbol is Memory_EEPROM:93LCxxB and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOIC-8, with 8 pins. Its footprint is drawn on this page.
Microchip Technology publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C615404, with 29 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the AT93C46DN-SH-T by Microchip Technology, the AT93C66B-SSHM-T by Microchip Technology, the M93C66-WMN6TP by STMicroelectronics and the 93LC46BT-I/SN by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.