# STC3115 Module ## Description This project is a Battery Management System (BMS) built around STMicroelectronics' STC3115AIQT battery monitor IC. It uses I2C for communication, features alarm management, and supports battery charging. The power supply, battery connection points, and debug interface are facilitated through connectors. #project #Template #charger #monitor #reusable #module #batterycharger #template #bms #STC3115 #stm ## Project Details - **Owner:** vfelipe - **Created:** 9/28/2024 - **Last Updated:** 9/28/2024 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### IC1 — [SN74LS279AN](https://www.flux.ai/jecstronic/sn74ls279an~472.md) - Manufacturer Name: Texas Instruments Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Part Number: SN74LS279AN - Datasheet URL: https://www.ti.com/lit/ds/symlink/sn74ls279a.pdf **Pins:** - 1~R [pin 1] - 1~S1 [pin 2] - 1~S2 [pin 3] - 1Q [pin 4] - 2~R [pin 5] - 2~S [pin 6] - 2Q [pin 7] - 3~R [pin 10] - 3~S1 [pin 11] - 3~S2 [pin 12] - 3Q [pin 9] - 4~R [pin 14] - 4~S [pin 15] - 4Q [pin 13] - GND [pin 8] - VCC [pin 16] ### Rcg — [Res-0805-US-Template Simplified Footprint No Prop](https://www.flux.ai/vasy_skral/res-0805-us-template-simplified-footprint-no-prop~jww.md) - Part Type: Resistor - License: https://creativecommons.org/licenses/by/4.0/ - Resistance: 30mΩ **Pins:** - P1 [pin 1] - P2 [pin 2] ### SW1 — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Part Type: Switch - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P **Pins:** - P1 [pin 1] - P2 [pin 3] ### SW2 — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Part Type: Switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Manufacturer Part Number: B3FS-1050P - Manufacturer Name: OMRON **Pins:** - P1 [pin 1] - P2 [pin 3] ### U1 — [STC3115AIQT](https://www.flux.ai/vasy_skral/stc3115aiqt~ib.md) - Part Type: Integrated Circuit - Manufacturer Name: STMicroelectronics - Manufacturer Part Number: STC3115AIQT - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/24/05/c6/c7/0c/72/41/39/DM00066800.pdf/files/DM00066800.pdf/jcr:content/translations/en.DM00066800.pdf **Pins:** - ALM [pin 1] - BATD/CD [pin 8] - CG [pin 6] - GND [pin 5] - RSTIO [pin 7] - SCL [pin 3] - SDA [pin 2] - VCC [pin 9] - VIN [pin 10] ### U2 — [7805](https://www.flux.ai/jecstronic/7805~viu.md) - Manufacturer Part Number: 7805 - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Foshan-Blue-Rocket-Elec-7805_C305416.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Name: Foshan Blue Rocket Elec - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - GND [pin 2] - VI [pin 1] - VO [pin 3] ### U3 — [SN74LS32N](https://www.flux.ai/jecstronic/sn74ls32n~4xg.md) - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/lit/ds/symlink/sn74ls32.pdf - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SN74LS32N **Pins:** - 1A [pin 1] - 1B [pin 2] - 1Y [pin 3] - 2A [pin 4] - 2B [pin 5] - 2Y [pin 6] - 3A [pin 9] - 3B [pin 10] - 3Y [pin 8] - 4A [pin 12] - 4B [pin 13] - 4Y [pin 11] - GND [pin 7] - VCC [pin 14] ### U4 — [74LS323PC](https://www.flux.ai/adrian95/74ls323pc~kz7.md) - Manufacturer Name: National Semiconductor - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 74LS323PC - Datasheet URL: https://rocelec.widen.net/view/pdf/0286avvyfx/FAIRS32908-1.pdf?t.download=true&u=5oefqw **Pins:** - CP [pin 12] - DS0 [pin 11] - DS7 [pin 18] - GND [pin 10] - I/O0 [pin 7] - I/O1 [pin 13] - I/O2 [pin 6] - I/O3 [pin 14] - I/O4 [pin 5] - I/O5 [pin 15] - I/O6 [pin 4] - I/O7 [pin 16] - OE1 [pin 2] - OE2 [pin 3] - Q0 [pin 8] - Q7 [pin 17] - S1 [pin 19] - SO [pin 1] - SR [pin 9] - VCC [pin 20] ### U5 — [SN74LS266D](https://www.flux.ai/jecstronic/sn74ls266d~0pi.md) - Datasheet URL: https://www.ti.com/lit/ds/sdls151/sdls151.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SN74LS266D - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuit **Pins:** - 1A [pin 1] - 1B [pin 2] - 1Y [pin 3] - 2A [pin 5] - 2B [pin 6] - 2Y [pin 4] - 3A [pin 8] - 3B [pin 9] - 3Y [pin 10] - 4A [pin 12] - 4B [pin 13] - 4Y [pin 11] - GND [pin 7] - VCC [pin 14] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vfelipe/stc3115-module~2w](https://www.flux.ai/vfelipe/stc3115-module~2w).* --- *Generated from [https://www.flux.ai/vfelipe/stc3115-module~2w](https://www.flux.ai/vfelipe/stc3115-module~2w)*