
Lockbox
yummCat/lockbox
The latest brilliant innovation we were able to come up with, was a box, that locks! 🤯

Microchip Technology
-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 16Kbit 1MHz 5ms Hardware write protection function、Noise suppression function、Built-in power-on reset (POR) I2C UDFN-8-EP(2x3) EEPROM ROHS
The AT24CS16-MAHM-E is an EEPROM made by Microchip Technology in a UDFN-8-EP(2x3) package with 9 pins. -40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 16Kbit 1MHz 5ms Hardware write protection function、Noise suppression function、Built-in power-on reset (POR) I2C UDFN-8-EP(2x3) EEPROM ROHS.
PCBKit's library has its KiCad symbol (Memory_EEPROM:AT24CS16-MAHM, from KiCad's library) and its footprint (Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm, from KiCad's library), ready for a KiCad board. 10 are in stock at JLCPCB (part C616857). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | NC | Not connected |
| 2 | NC | Not connected |
| 3 | NC | Not connected |
| 4 | GND | Power in |
| 5 | SDA | Input/output |
| 6 | SCL | Input |
| 7 | WP | Input |
| 8 | VCC | Power in |
| 9 | NC | Not connected |

yummCat/lockbox
The latest brilliant innovation we were able to come up with, was a box, that locks! 🤯
<iframe src="https://pcbkit.io/embed/parts/microchip/AT24CS16-MAHM-E" title="AT24CS16-MAHM-E 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/AT24CS16-MAHM-E.jpg" alt="AT24CS16-MAHM-E" width="1200" height="900">[](https://pcbkit.io/parts/microchip/AT24CS16-MAHM-E)Yes. The symbol is Memory_EEPROM:AT24CS16-MAHM and the footprint Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
UDFN-8-EP(2x3), with 9 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 C616857, with 10 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the AT24CS64-MAHM-T by Microchip Technology, the AT24CS02-MAHM-T by Microchip Technology, the AT24CS01-MAHM-T by Microchip Technology and the AT24CS32-MAHM-T 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.