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STD EIE-I/O Junior
Mode: Editors' pick
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Update time：
2021-04-11 19:52:04
Creation time：
2017-06-16 19:07:05
Description
My first go around at designing the EIE-I/O GPIO expander. On that one, I used four of the Cypress chips whereas this one only has two. Should be identical otherwise.
Design Drawing
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | CY8C9560A-24AXI | U1,U2 | CYP-AX100 | 2 |
| 2 | F185-1240A0BSYA1 | J1,J5 | H2X23-2.54 | 2 |
| 3 | F185-1210A0BA1 | J2,J6 | H2X10-2.54 | 2 |
| 4 | DIP Black Male Header VERT; | J3,J7 | H5-2.54 | 2 |
| 5 | P125-1102A0BS116A1 | J4 | H2-2.54 | 1 |
| 6 | ATMEGA32U4-AU | U3 | QFP-44_10X10X08P | 1 |
| 7 | USB-Micro-3 | USB1 | USB-MICRO-3 | 1 |
| 8 | 0.22Ω | R1,R2 | 2512 | 2 |
| 9 | 1uF | C1,C2 | 1812 | 2 |
| 10 | 16.384MHZ | X1 | OSC-49S-1 | 1 |
| 11 | 18pF | C3,C4 | 1206 | 2 |
| 12 | 10KΩ | R3 | 2512 | 1 |
| 13 | SWITCH-6x6x5_SMD | RESET | SWITCH-6X6X5_SMD | 1 |
| 14 | Header-Female-2.54_1x6 | P1 | HDR-6X1/2.54 | 1 |
| 15 | 330Ω | R4,R5 | 2512 | 2 |
| 16 | 19-217/T1D-CQ2R2TY/3T | LED1,LED2 | 0603 | 2 |
| 17 | Header-Female-2.54_1x15 | P2 | HDR-15X1/2.54 | 1 |
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