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2.The process supports design scales of 300 devices or 1000 pads
3.Supports simple circuit simulation
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STD Programmable peripheral interface 8255 simulation board
Programmable peripheral interface 8255 simulation board
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Public Domain
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Update time：
2023-08-21 06:25:50
Creation time：
2022-04-29 00:39:41
Description
Description
PPI 8255 is a general-purpose programmable I/O device designed to interface the CPU with its outside world such as ADC, DAC, keyboard etc. We can program it according to the given condition. It can be used with almost any microprocessor. It consists of three 8-bit bidirectional I/O ports i.e. PORT A, PORT B and PORT C. We can assign different ports as input or output functions
Design Drawing
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 1000U | C1 | CAP-D6.3×F2.5 | 1 |
| 2 | 1u | C2 | CAP-D5.0×F2.0 | 1 |
| 3 | DIP LED Green-Green; | D_PA0,D_PA1,D_PA2,D_PA3,D_PA4,D_PA5,D_PA6,D_PA7,D_PB0,D_PB1,D_PB2,D_PB3,D_PB4,D_PB5,D_PB6,D_PB7,D_PC0,D_PC1,D_PC2,D_PC3,D_PC4,D_PC5,D_PC6,D_PC7,D_POW | LED2-2.54-D3.0MM | 25 |
| 4 | CON_DC_M-DC_PTH2 | J2 | DC_BARREL_JACK_PTH_2MM_2 | 1 |
| 5 | CONN-TH_2P-P5.00 | P1 | CONN-TH_2P-P5.00 | 1 |
| 6 | 330 | R36,RA0,RA1,RD0,RD1,RD2,RD3,RD4,RD5,RD6,RD7,R_PB0,R_PB1,R_PB2,R_PB3,R_PB4,R_PB5,R_PB6,R_PB7,R_PC0,R_PC1,R_PC2,R_PC3,R_PC4,R_PC5,R_PC6,R_PC7,R_POW,R_RESET | R_AXIAL-0.4 | 29 |
| 7 | 1k | R_PA0,R_PA1,R_PA2,R_PA3,R_PA4,R_PA5,R_PA6,R_PA7 | AXIAL-0.4 | 8 |
| 8 | Switch_8xDIP_RevE_Date15jun2010 | S1 | SW-TH_16P-P2.54_SDA08H1BD | 1 |
| 9 | SW_DIP-2 | SW1 | DIPSWITCH-02 | 1 |
| 10 | KF1001-01P-R0-FL-ON-01B | SW3 | BUSH_BUTTON_2 | 1 |
| 11 | 0 | SW_WRITE | BUSH_BUTTON_2 | 1 |
| 12 | 8255 | U1 | DIP-40_W15.24MM | 1 |
| 13 | 54101-T30-00 | U2,U3 | HDR-TH_1P-P2.54-V-M | 2 |
| 14 | 7805 | U7 | TO-220-3_L10.0-W4.5-P2.54-L | 1 |
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