A bi-directional high-speed TTL-Compatible level shifter board 5V ⇄ 3V3 for tinkering
This fork replaces the currently hard to find TSSOP package with the more available SSOP package.
Only a few small adjustments had to be made to make room for the larger chip.
| PART | Value | Description |
|---|---|---|
| D1 | 2.54 mm pin pitch | LED Diode (optional Power on/off indicator) |
| R1 | 100-330 Ohm | 1206 (populate if D1, calculate suitable resistor value to use with D1) |
| C1 | 10-100 uF | 1210 |
| C2 | 0.1 uF | 1206 |
| U1 | SN74CBTD16211DL https://www.ti.com/lit/ds/symlink/sn74cbtd16211.pdf | SSOP-56_7.5x18.5mm_P0.635mm |
| Pushbutton switch SW_7x7x12mm_DPDT | ||
| Barrel Jack 5.5x2.1mm | ||
| Power +5V center pin positive or via pinheader (verify polarity before connecting) | ||
| 2.54 mm jumpers to enable/disable /1OE (first 12-bits) and /2OE (second 12-bits), either enable via jumper to GND or disable via VCC. | ||
| 2.54 mm jumpers to disable unused inputs via jumper to GND. | ||
| A lot of 2.54mm pinheader strips. |
Happy Tinkerin'