# SUMADOR Y RESTADOR ## Description 4-bit Sum/Subtract Unit with Result Memory, Operand Multiplexer, and Debounced Modulo-16 Operation ## Project Details - **Owner:** sagc - **Created:** 5/5/2025 - **Last Updated:** 5/5/2025 - **Visibility:** Public - **Role Details:** 4-bit sum/subtract unit with operand multiplexer, result register, and debounced modulo-16 operation using 74LS283 adder, 74LS173 register, 74LS157 multiplexer, and 74LS86 for arithmetic control and debouncing. - **Integrated Circuit Type:** Logic - **Logic Function:** Multi Function - **Part Type:** Integrated Circuit - **Operating Voltage:** 5V - **Domain:** Scientific - **System Architecture:** ```mermaid flowchart TD LS283_O["74LS283 Sum/Diff Outputs\nA1-A4"] --> REG_D["SN74LS173 Data Inputs\nD0-D3"] REG_Q["SN74LS173 Outputs\nQ0-Q3"] --> MUX_IN["SN74LS157 Data Inputs\nD0-D3"] EXT_OP["External Operand Bus"] --> MUX_IN SELECT["SELECT"] --> MUX_SEL["SN74LS157 Select Pin"] MUX_IN --> MUX_Y["SN74LS157 Outputs\nY0-Y3"] MUX_Y --> LS283_A["74LS283 Inputs\nA1-A4"] STORE["STORE"] --> LOAD["SN74LS173 LOAD Pin"] CLR["CLR"] --> CLEAR["SN74LS173 CLEAR Pin"] ``` - **Role:** Control Unit ## Key Components ### 74LS283 — [SN74LS283N](https://www.flux.ai/jecstronic/sn74ls283n~sny.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments - Manufacturer Part Number: SN74LS283N - Datasheet URL: https://www.ti.com/lit/ds/symlink/sn74ls283.pdf - Part Type: Integrated Circuit **Pins:** - *1 [pin 4] - *2 [pin 1] - *3 [pin 13] - *4 [pin 10] - A1 [pin 5] - A2 [pin 3] - A3 [pin 14] - A4 [pin 12] - B1 [pin 6] - B2 [pin 2] - B3 [pin 15] - B4 [pin 11] - C0 [pin 7] - C4 [pin 9] - GND [pin 8] - VCC [pin 16] ### 74LS48 — [SN74LS48N](https://www.flux.ai/jecstronic/sn74ls48n~hkw.md) - Datasheet URL: https://www.alldatasheet.com/datasheet-pdf/pdf/27434/TI/SN74LS48N.html - Manufacturer Part Number: SN74LS48N - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~BI~/~RBO [pin 4] - ~LT [pin 3] - ~RBI [pin 5] - A_1 [pin 7] - A_2 [pin 13] - B_1 [pin 1] - B_2 [pin 12] - C_1 [pin 2] - C_2 [pin 11] - D_1 [pin 6] - D_2 [pin 10] - E [pin 9] - F [pin 15] - G [pin 14] - GND [pin 8] - VCC [pin 16] ### 74LS86 — [SN74LS86AN](https://www.flux.ai/jecstronic/sn74ls86an~s6f.md) - Part Type: Integrated Circuit - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2380/SN54,74(LS,S)86(A).pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SN74LS86AN - Manufacturer Name: Texas Instruments **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] ### D1 — [10mm CA White 7 Segment Display](https://www.flux.ai/corynrobinson/10mm-ca-white-7-segment-display~m0.md) - Datasheet URL: https://docs.broadcom.com/doc/AV02-1644EN - Manufacturer Part Number: HDSM-431W - Purchase Url: https://octopart.com/hdsm-431w-broadcom-71129225?r=sp - Manufacturer Name: Broadcom - Part Type: LED - Forward Voltage: 2.95V - Current: 10mA **Pins:** - a - Anode1 - Anode2 - b - c - d - dp - e - f - g ### D2 — [10mm CA White 7 Segment Display](https://www.flux.ai/corynrobinson/10mm-ca-white-7-segment-display~m0.md) - Current: 10mA - Forward Voltage: 2.95V - Part Type: LED - Manufacturer Name: Broadcom - Datasheet URL: https://docs.broadcom.com/doc/AV02-1644EN - Purchase Url: https://octopart.com/hdsm-431w-broadcom-71129225?r=sp - Manufacturer Part Number: HDSM-431W **Pins:** - a - Anode1 - Anode2 - b - c - d - dp - e - f - g ### D9 — [10mm CA White 7 Segment Display](https://www.flux.ai/corynrobinson/10mm-ca-white-7-segment-display~m0.md) - Part Type: LED - Forward Voltage: 2.95V - Manufacturer Part Number: HDSM-431W - Purchase Url: https://octopart.com/hdsm-431w-broadcom-71129225?r=sp - Datasheet URL: https://docs.broadcom.com/doc/AV02-1644EN - Manufacturer Name: Broadcom - Current: 10mA **Pins:** - a - Anode1 - Anode2 - b - c - d - dp - e - f - g ### S1 — [1825360-3](https://www.flux.ai/adrian95/1825360-3~qvc.md) - Package or Case Code: DIP810W60P254L1209H480Q8N - 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 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: TE Connectivity - Part Type: Switch **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] ### S2 — [1825360-3](https://www.flux.ai/adrian95/1825360-3~qvc.md) - Package or Case Code: DIP810W60P254L1209H480Q8N - 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 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1825360-3 - Manufacturer Name: TE Connectivity - Part Type: Switch **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 — [DS04-254-2-01BK-SMT](https://www.flux.ai/jecstronic/ds04-254-2-01bk-smt~t2.md) - Datasheet URL: https://www.cuidevices.com/product/resource/ds04-254-smt.pdf - Manufacturer Part Number: DS04-254-2-01BK-SMT - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: CUI Devices **Pins:** - ~ [pin 1B] - ~ [pin 1A] ### U1 — [CD4511BE](https://www.flux.ai/jecstronic/cd4511be~wx9.md) - Manufacturer Part Number: CD4511BE - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/cd4511b.pdf - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuit **Pins:** - ~BL [pin 4] - ~LT [pin 3] - A_1 [pin 7] - A_2 [pin 13] - B_1 [pin 1] - B_2 [pin 12] - C_1 [pin 2] - C_2 [pin 11] - D_1 [pin 6] - D_2 [pin 10] - E [pin 9] - F [pin 15] - G [pin 14] - LE/~STROBE [pin 5] - VDD [pin 16] - VSS [pin 8] ### U2 — [CD4511BE](https://www.flux.ai/jecstronic/cd4511be~wx9.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/cd4511b.pdf - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuit - Manufacturer Part Number: CD4511BE **Pins:** - ~BL [pin 4] - ~LT [pin 3] - A_1 [pin 7] - A_2 [pin 13] - B_1 [pin 1] - B_2 [pin 12] - C_1 [pin 2] - C_2 [pin 11] - D_1 [pin 6] - D_2 [pin 10] - E [pin 9] - F [pin 15] - G [pin 14] - LE/~STROBE [pin 5] - VDD [pin 16] - VSS [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/sagc/sumador-y-restador~1j](https://www.flux.ai/sagc/sumador-y-restador~1j).* --- *Generated from [https://www.flux.ai/sagc/sumador-y-restador~1j](https://www.flux.ai/sagc/sumador-y-restador~1j)*