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STD SPAM-1-CPU
License: MIT
Mode: Editors' pick
- 0
Update time：
2022-08-01 11:31:52
Creation time：
2020-09-09 23:37:53
Description
This site hosts the schematics of the hardware of SPAM-1.
Full project details can be found in the following sites:
* [SPAM-1 GitHub](https://github.com/Johnlon/spam-1)
* [SPAM-1 Youtube Series](https://www.youtube.com/playlist?list=PLdLE_IdL0sqyAxmmHNbp0Q6dVWFVW8zQQ)
* [SPAM-1 Hackday project](https://hackaday.io/project/166922-spam-1-8-bit-cpu)
Also of interest are
* [Seven Segment Indicator module hackaday](https://hackaday.io/project/178227-7-segment-module-using-pic16f18446)
* [EasyEDA for the indicator module](https://easyeda.com/john.lonergan.sharing/7-segment-display-module-using-pic16f18446-microcontroller)
Design Drawing
schematic diagram
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Program Counter
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Register File
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UART
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ROMS
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ALU
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RAM
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MAR
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CLOCK_GEN
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DEBOUNCE
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CLOCK_CONTROL
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CONTROLLER
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PARALLEL_PORT
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GAMEPAD_ADAPTER
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PORT_CONTROLLLER
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TIMER
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 74HC377 | PCHITMP | DIP-20_L25.5-W10.0-P2.54-LS7.6-BL | 1 |
| 2 | 74HCT163 | PCHI_3_0,PCHI_7_4,PCLO_3_0,PCLO_7_4,TIMER_3_0,TIMER_7_4 | DIP16 | 6 |
| 3 | 74HCT02 | IC7402_GATING | DIP-14_L19.0-W7.0-P2.54-LS7.6-BL | 1 |
| 4 | 74HCT670 | REGFILE_A_HI,REGFILE_A_LO,REGFILE_B_HI,REGFILE_B_LO | DIP16 | 4 |
| 5 | 74HCT574 | REGFILE_IN_REG,PORT_SEL_REG | DIP-20_L26.8-W6.4-P2.54-LS7.6-BL | 2 |
| 6 | RED LED | D1 | LED-3MM | 1 |
| 7 | BLUE LED | D2 | LED-3MM | 1 |
| 8 | 10k | R1,R2 | R0603 | 2 |
| 9 | 100k | R3,R4 | R0603 | 2 |
| 10 | UM245R | UART | DIP24-600 | 1 |
| 11 | 74HCT245 | UART_ABUS_BUF,UART_ALUBUS_BUF,ROM_ADDBBUSHI_BUF,ROM_ADDBBUSLO_BUF,ROM_BBUS_BUF,RAM_ALUBUS_BUF,RAM_BBUS_BUF,MARHI_ABUS_BUF,MARHI_ADDBBUSHI_BUF,MARHI_BBUS_BUF,MARLO_ABUS_BUF,MARLO_ADDBBUSLO_BUF,MARLO_BBUS_BUF,UART_ALUBUS_BUF1 | DIP20 | 14 |
| 12 | 74HCT32 | UART_GATING_OR | DIP14 | 1 |
| 13 | SST39SF010 | ROM1,ROM2,ROM3,ROM4,ROM5,ROM6 | PDIP-32_L42.0-W13.7-P2.54-LS15.2-BL | 6 |
| 14 | 27C322 | ALU_ROM | DIP-42_W15.24MM | 1 |
| 15 | 74HCT157 | EFFECTIVE_BIT_SEL | 74LS157 | 1 |
| 16 | 74HCT04 | FLAG_C_INVERTER | 14PIN-DIP | 1 |
| 17 | 74HCT138 | OP_DECODER,ABUS_DEV_1_DEMUX,BBUS_DEV_1_DEMUX,BBUS_DEV_2_DEMUX,TARG_DEV_3_DEMUX,TARG_DEV_4_DEMUX,TARG_DEV_08_DEMUX,TARG_DEV_16_DEMUX | DIP16 | 8 |
| 18 | 74HCT574 | STATUS_REGISTER_CZONGLEN | DIP254P762X420-20 | 1 |
| 19 | 74HCT11 | U3 | DIP14 | 1 |
| 20 | AS6C1008 | RAM | DIP32 | 1 |
| 21 | 74HCT32 | _GATED_RAM_IN_OR | DIP-14_W19.2-H7.1-P2.54-LS7.6_74HCT32N | 1 |
| 22 | 74HCT377 | MARHI,MARLO,U1 | DIP20 | 3 |
| 23 | MIN_TIMING_RESISTOR | 1K | AXIAL-0.3 | 1 |
| 24 | TIMING RESISTOR | 1M | VARIABLE RESISTOR | 1 |
| 25 | STARTUP_RESISTOR | 100K | AXIAL-0.3 | 1 |
| 26 | SYSTEM_CLK_LED | D3,D7 | LED3MM-NS | 2 |
| 27 | TIMING RANGE | RANGE_SW | S-TSW | 1 |
| 28 | 10k | RES_LED,HALTED_LED_R,MAN_R1,MODE_R2,PHASE_EXEC_LED_R1,PHASE_EXEC_LED_R4 | AXIAL-0.3 | 6 |
| 29 | TLC555CP | TIMER1 | DIP-8_L9.7-W6.4-P2.54-LS7.6-BL | 1 |
| 30 | 10uf | TIMING_CAPACITOR,RESET_C | RADIAL CAPACITOR 5MM | 2 |
| 31 | 74HCT08N | AND_1 | DIP14 | 1 |
| 32 | HALTED_LED | D4 | LED3MM-NS | 1 |
| 33 | RST_LED | D5 | LED3MM-NS | 1 |
| 34 | PHASE_EXEC_LED | D6 | LED3MM-NS | 1 |
| 35 | MODE_LED | D8 | LED3MM-NS | 1 |
| 36 | MAN_LED | D9 | LED3MM-NS | 1 |
| 37 | Manual Clocking | MAN_B,MODE_SW | S-TSW | 2 |
| 38 | 1uf | MAN_C,MODE_C | RADIAL CAPACITOR 5MM | 2 |
| 39 | 1N4148 | MAN_D,MODE_D | DO35-7 | 2 |
| 40 | 21k | MAN_R2,MODE_R | AXIAL-0.3 | 2 |
| 41 | 74HCT00 | MISC_NAND1,CTRL_NAND | DIP14 | 2 |
| 42 | 74HC132 | NAND_1,NAND_2 | DIP14 | 2 |
| 43 | 1k | PHASE_EXEC_LED_R | AXIAL-0.3 | 1 |
| 44 | 100k | PHASE_EXEC_LED_R2,PHASE_EXEC_LED_R3,RESET_R | AXIAL-0.3 | 3 |
| 45 | Reset Button | RESET_B | S-TSW | 1 |
| 46 | 74HCT74 | RESET_FLIPFLOP1,TIMER_ZERO | DIP14 | 2 |
| 47 | 2k | RST_LED_R | AXIAL-0.3 | 1 |
| 48 | 74HCT151 | CONDITION_MUX_HI,CONDITION_MUX_LO | DIP16 | 2 |
| 49 | 74HCT86 | CTRL_XOR | DIP14 | 1 |
| 50 | COND_MET (LABELLED DO_EXEC_LED) | D10 | LED3MM-NS | 1 |
| 51 | Header-Female-2.54_1x8 | IOPORT_HEADER_IN,IOPORT_HEADER_OUT | HDR-TH_8P-P2.54-V | 2 |
| 52 | 74HCT245 | R5 | DIP-20_L26.0-W6.6-P2.54-LS7.6-BL | 1 |
| 53 | 74HC595N | BUF_CTRL1,BUF_CTRL2,BUF_RAND | DIP-16_L20.0-W6.4-P2.54-LS7.6-BL | 3 |
| 54 | HEADER_CTRL2 | H1 | HDR-TH_4P-P2.54-V-M | 1 |
| 55 | HEADER_CTRL1 | H2 | HDR-TH_4P-P2.54-V-M | 1 |
| 56 | PIC16F18446-I_P | IC1 | DIP794W56P254L2591H533Q20N | 1 |
| 57 | 74HCT154 | PORTSEL_DECODE_RD,PORTSEL_DECODE_WR | DIP24 | 2 |
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