# Cerradura Digital con Memoria ## Description Cerradura digital electrónica sin microcontrolador basada en memoria comercial, comparadores digitales, contador de intentos, lógica secuencial/combinacional, LEDs de estado, alarma y reinicio manual. ## Project Details - **Owner:** kiratupapa123 - **Created:** 5/31/2026 - **Last Updated:** 5/31/2026 - **Visibility:** Public ## Key Components ### BZ1 — [5V](https://www.flux.ai/lcsc/5v~2uvd.md) - Part Type: Buzzers - JLCPCB Part Class: Extended Part - Package or Case Code: BUZ-TH_BD12.0-P7.60-D0.6-FD - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_YUEXIN-FT12095-G-5V_C781866.pdf - Product Info Url: https://lcsc.com/product-detail/Buzzers_YUEXIN-FT12095-G-5V_C781866.html - LCSC Part Number: C781866 - Manufacturer Part Number: FT12095-G/5V - Manufacturer Name: YUEXIN(悦馨) **Pins:** - 1 [pin 1] - 2 [pin 2] ### D4 — [1N4148-1](https://www.flux.ai/gaby27/1n4148-1~89.md) - Manufacturer Name: Microchip - Datasheet URL: https://www.mouser.com/datasheet/2/308/1N914_D-1801484.pdf - Part Type: Diode - Manufacturer Part Number: 1N4148-1 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### LED1 — [151031VS06000](https://www.flux.ai/adrian95/151031vs06000~t3a.md) - Part Type: LED - Manufacturer Part Number: 151031VS06000 - Datasheet URL: https://www.we-online.com/components/products/datasheet/151031VS06000.pdf - Manufacturer Name: Würth Elektronik - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LTL-307EE](https://www.flux.ai/vasy_skral/ltl-307ee~a2.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1153/LTL-307EE.pdf - Manufacturer Name: Lite-On Inc. - Manufacturer Part Number: LTL-307EE **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [LTL-307EE](https://www.flux.ai/vasy_skral/ltl-307ee~a2.md) - Manufacturer Name: Lite-On Inc. - Manufacturer Part Number: LTL-307EE - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1153/LTL-307EE.pdf **Pins:** - A [pin 2] - K [pin 1] ### Q4 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Manufacturer Part Number: 2N2222 - Manufacturer Name: Solid State Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### S1 — [1825360-3](https://www.flux.ai/adrian95/1825360-3~qvc.md) - Package or Case Code: DIP810W60P254L1209H480Q8N - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: TE Connectivity - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=ADE_ADP_ADF_Datasheet&DocType=Data+Sheet&DocLang=English&DocFormat=pdf&PartCntxt=1825360-3 - Manufacturer Part Number: 1825360-3 **Pins:** - COM_1 [pin 1] - COM_2 [pin 2] - COM_3 [pin 3] - COM_4 [pin 4] - NO_1 [pin 5] - NO_2 [pin 6] - NO_3 [pin 7] - NO_4 [pin 8] ### SW1 — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Part Type: Switch - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf **Pins:** - P1 [pin 1] - P2 [pin 3] ### SW2 — [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 - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P - Part Type: Switch **Pins:** - P1 [pin 1] - P2 [pin 3] ### SW3 — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Manufacturer Part Number: B3FS-1050P - Manufacturer Name: OMRON - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Part Type: Switch **Pins:** - P1 [pin 1] - P2 [pin 3] ### SW4 — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Part Type: Switch **Pins:** - P1 [pin 1] - P2 [pin 3] ### U1 — [AT28C64B-15PU](https://www.flux.ai/adrian95/at28c64b-15pu~2p9.md) - Manufacturer Part Number: AT28C64B-15PU - Manufacturer Name: Microchip Technology - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/doc0270.pdf - Part Type: Integrated Circuit **Pins:** - ~CE [pin 20] - ~OE [pin 22] - ~WE [pin 27] - A0 [pin 10] - A1 [pin 9] - A10 [pin 21] - A11 [pin 23] - A12 [pin 2] - A2 [pin 8] - A3 [pin 7] - A4 [pin 6] - A5 [pin 5] - A6 [pin 4] - A7 [pin 3] - A8 [pin 25] - A9 [pin 24] - GND [pin 14] - I/O0 [pin 11] - I/O1 [pin 12] - I/O2 [pin 13] - I/O3 [pin 15] - I/O4 [pin 16] - I/O5 [pin 17] - I/O6 [pin 18] - I/O7 [pin 19] - NC_1 [pin 1] - NC_2 [pin 26] - VCC [pin 28] ### U11 — [74HC04N](https://www.flux.ai/lcsc/74hc04n~uvsk.md) - Part Type: 74 Series - LCSC Part Number: C669327 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006200933_HTC-Korea-TAEJIN-Tech-74HC04N_C669327.pdf - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/74-Series_HTC-Korea-TAEJIN-Tech-74HC04N_C669327.html - Manufacturer Part Number: 74HC04N - Manufacturer Name: HTC - Package or Case Code: DIP-14_L19.2-W6.6-P2.54-LS10.9-BL **Pins:** - 1A [pin 1] - 1Y [pin 2] - 2A [pin 3] - 2Y [pin 4] - 3A [pin 5] - 3Y [pin 6] - 4A [pin 9] - 4Y [pin 8] - 5A [pin 11] - 5Y [pin 10] - 6A [pin 13] - 6Y [pin 12] - GND [pin 7] - VCC [pin 14] ### U12 — [74HC08PW-Q100-118](https://www.flux.ai/adrian95/74hc08pw-q100-118~d1r.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 74HC08PW-Q100,118 - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/74HC_HCT08_Q100.pdf - Manufacturer Name: Nexperia USA Inc. - Part Type: Integrated Circuit **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] ### U2 — [74HC175PW,118](https://www.flux.ai/lcsc/74hc175pwc118~t61i.md) - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - JLCPCB Part Class: Extended Part - LCSC Part Number: C546669 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010201_Nexperia-74HC175PW-118_C546669.pdf - Manufacturer Part Number: 74HC175PW,118 - Product Info Url: https://lcsc.com/product-detail/presales_Nexperia-74HC175PW-118_C546669.html - Part Type: Flip Flops - Manufacturer Name: Nexperia(安世) **Pins:** - ~{MR} [pin 1] - ~{Q0} [pin 3] - ~{Q1} [pin 6] - ~{Q2} [pin 11] - ~{Q3} [pin 14] - CP [pin 9] - D0 [pin 4] - D1 [pin 5] - D2 [pin 12] - D3 [pin 13] - GND [pin 8] - Q0 [pin 2] - Q1 [pin 7] - Q2 [pin 10] - Q3 [pin 15] - VCC [pin 16] ### U3 — [74HC175PW,118](https://www.flux.ai/lcsc/74hc175pwc118~t61i.md) - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Manufacturer Part Number: 74HC175PW,118 - LCSC Part Number: C546669 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010201_Nexperia-74HC175PW-118_C546669.pdf - JLCPCB Part Class: Extended Part - Part Type: Flip Flops - Manufacturer Name: Nexperia(安世) - Product Info Url: https://lcsc.com/product-detail/presales_Nexperia-74HC175PW-118_C546669.html **Pins:** - ~{MR} [pin 1] - ~{Q0} [pin 3] - ~{Q1} [pin 6] - ~{Q2} [pin 11] - ~{Q3} [pin 14] - CP [pin 9] - D0 [pin 4] - D1 [pin 5] - D2 [pin 12] - D3 [pin 13] - GND [pin 8] - Q0 [pin 2] - Q1 [pin 7] - Q2 [pin 10] - Q3 [pin 15] - VCC [pin 16] ### U4 — [74HC85PW,118](https://www.flux.ai/lcsc/74hc85pwc118~y4ka.md) - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/presales_Nexperia-74HC85PW-118_C547174.html - LCSC Part Number: C547174 - Part Type: 74 Series - Manufacturer Part Number: 74HC85PW,118 - Manufacturer Name: Nexperia(安世) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010201_Nexperia-74HC85PW-118_C547174.pdf - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL **Pins:** - A0 [pin 10] - A1 [pin 12] - A2 [pin 13] - A3 [pin 15] - B0 [pin 9] - B1 [pin 11] - B2 [pin 14] - B3 [pin 1] - GND [pin 8] - IA<B [pin 2] - IA=B [pin 3] - IA>B [pin 4] - QA<B [pin 7] - QA=B [pin 6] - QA>B [pin 5] - VCC [pin 16] ### U5 — [74HC85PW,118](https://www.flux.ai/lcsc/74hc85pwc118~y4ka.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010201_Nexperia-74HC85PW-118_C547174.pdf - Manufacturer Name: Nexperia(安世) - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Product Info Url: https://lcsc.com/product-detail/presales_Nexperia-74HC85PW-118_C547174.html - JLCPCB Part Class: Extended Part - LCSC Part Number: C547174 - Part Type: 74 Series - Manufacturer Part Number: 74HC85PW,118 **Pins:** - A0 [pin 10] - A1 [pin 12] - A2 [pin 13] - A3 [pin 15] - B0 [pin 9] - B1 [pin 11] - B2 [pin 14] - B3 [pin 1] - GND [pin 8] - IA<B [pin 2] - IA=B [pin 3] - IA>B [pin 4] - QA<B [pin 7] - QA=B [pin 6] - QA>B [pin 5] - VCC [pin 16] ### U6 — [74HC161D-Q100J](https://www.flux.ai/lcsc/74hc161d-q100j~isk8.md) - Part Type: Counters / Dividers - Product Info Url: https://lcsc.com/product-detail/presales_Nexperia-74HC161D-Q100J_C546621.html - LCSC Part Number: C546621 - Manufacturer Part Number: 74HC161D-Q100J - Manufacturer Name: Nexperia(安世) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407241036_Nexperia-74HC161D-Q100J_C546621.pdf - JLCPCB Part Class: Extended Part - Package or Case Code: SO-16_L10.0-W4.0-P1.27-LS6.2-BL **Pins:** - #MR [pin 1] - #PE [pin 9] - CEP [pin 7] - CET [pin 10] - CP [pin 2] - D0 [pin 3] - D1 [pin 4] - D2 [pin 5] - D3 [pin 6] - GND [pin 8] - Q0 [pin 14] - Q1 [pin 13] - Q2 [pin 12] - Q3 [pin 11] - TC [pin 15] - VCC [pin 16] ### U7 — [74HC74PW,118](https://www.flux.ai/adrian95/74hc74pwc118~2hn.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/74HC_HCT74.pdf - Manufacturer Name: Nexperia USA Inc. - Part Type: Integrated Circuit - Manufacturer Part Number: 74HC74PW,118 **Pins:** - ~1Q [pin 6] - ~1RD [pin 1] - ~1SD [pin 4] - ~2Q [pin 8] - ~2RD [pin 13] - ~2SD [pin 10] - 1CP [pin 3] - 1D [pin 2] - 1Q [pin 5] - 2CP [pin 11] - 2D [pin 12] - 2Q [pin 9] - GND [pin 7] - VCC [pin 14] ### U8 — [NE555P](https://www.flux.ai/kicad-part-library/ne555p~vhf.md) - Domain: Consumer Electronics - Manufacturer Part Number: NE555P - Datasheet URL: http://www.ti.com/lit/ds/symlink/ne555.pdf - Role: Signal Generation - Package or Case Code: DIP-8_W7.62mm - Operating Voltage: 5V - Role Details: Astable oscillator for dual-LED flasher - Manufacturer Name: Texas Instruments Inc. - Part Type: Precision Timer **Pins:** - CONT [pin 5] - DISCH [pin 7] - GND [pin 1] - OUT [pin 3] - RESET [pin 4] - THRES [pin 6] - TRIG [pin 2] - VCC [pin 8] ### U9 — [74HC08PW-Q100-118](https://www.flux.ai/adrian95/74hc08pw-q100-118~d1r.md) - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/74HC_HCT08_Q100.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 74HC08PW-Q100,118 - Part Type: Integrated Circuit - Manufacturer Name: Nexperia USA Inc. **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] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/kiratupapa123/cerradura-digital-con-memoria~7u](https://www.flux.ai/kiratupapa123/cerradura-digital-con-memoria~7u).* --- *Generated from [https://www.flux.ai/kiratupapa123/cerradura-digital-con-memoria~7u](https://www.flux.ai/kiratupapa123/cerradura-digital-con-memoria~7u)*