The CDP1802E is a microcontroller made by Texas Instruments with 40 pins. - Microcontrollers (MCU/MPU/SOC).
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CDP1802E, from EasyEDA) and its footprint (EasyEDA_Cloud:PDIP-40_L52.3-W13.8-P2.54-LS15.2-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3232729). 3 open-source boards in 3 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | CLOCK | Unspecified |
| 2 | WAIT# | Unspecified |
| 3 | CLEAR# | Unspecified |
| 4 | Q | Unspecified |
| 5 | SC1 | Unspecified |
| 6 | SC0 | Unspecified |
| 7 | MRD# | Unspecified |
| 8 | BUS7 | Unspecified |
| 9 | BUS6 | Unspecified |
| 10 | BUS5 | Unspecified |
| 11 | BUS4 | Unspecified |
| 12 | BUS3 | Unspecified |
| 13 | BUS2 | Unspecified |
| 14 | BUS1 | Unspecified |
| 15 | BUS0 | Unspecified |
| 16 | VCC | Unspecified |
| 17 | N2 | Unspecified |
| 18 | N1 | Unspecified |
| 19 | N0 | Unspecified |
| 20 | VSS | Unspecified |
| 21 | EF4 | Unspecified |
| 22 | EF3 | Unspecified |
| 23 | EF2 | Unspecified |
| 24 | EF1 | Unspecified |
| 25 | MA0 | Unspecified |
| 26 | MA1 | Unspecified |
| 27 | MA2 | Unspecified |
| 28 | MA3 | Unspecified |
| 29 | MA4 | Unspecified |
| 30 | MA5 | Unspecified |
| 31 | MA6 | Unspecified |
| 32 | MA7 | Unspecified |
| 33 | TPB | Unspecified |
| 34 | TPA | Unspecified |
| 35 | MWR# | Unspecified |
| 36 | INTERRUPT# | Unspecified |
| 37 | DMAOUT# | Unspecified |
| 38 | DMAIN# | Unspecified |
| 39 | XTAL# | Unspecified |
| 40 | VDD | Unspecified |
tebl/RC1802-Cosmac-ELF
With the RC6502-project for making an Apple 1 replica done I wanted to do something different, so I started designing a simple version of the RCA 1802-based Cosmac ELF instead.
tebl/RetroShield1802-PCB
Arduino Mega 2560 shield adding secondary 1802 processor to run the latest 1802-based software (most may be from the 70s).
<iframe src="https://pcbkit.io/embed/parts/ti/CDP1802E" title="CDP1802E in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/CDP1802E.jpg" alt="CDP1802E" width="1200" height="900">[](https://pcbkit.io/parts/ti/CDP1802E)Yes. The symbol is EasyEDA_Cloud:CDP1802E and the footprint EasyEDA_Cloud:PDIP-40_L52.3-W13.8-P2.54-LS15.2-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
JLCPCB lists it as part C3232729, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the AT89C51RC2-3CSUM by Microchip Technology, the IA6805E2PDW40IR0 by Analog Devices, the D87C51 by AMD and the D87C51-1 by AMD. Check their datasheets: a part that fits the footprint may still differ in its ratings.
3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
