Tiny Tapeout GF 26a · Die T26A on wafer.space Run 2
VCO driven by DAC
609 · Analog and mixed-signal · 1 × 1 tile
by algofoogle (Anton Maurovic) · repository @algofoogle
Rendered from the layout at 0.33 µm per pixel. Layers: NwellDiffusionPolysiliconMetal 1Metal 2Metal 3Metal 4Metal 5Top metalPad openings
48 logic cells: too few for density figures, which are given for projects of 1,000 or more.
Every figure here is measured from the public layout, the same way for every design on the chip: see data and method, and how its designs used the process.
Mixed-signal project with DAC setting a VCO's control voltage
Source repository Its page on Tiny TapeoutBuy a chip and board
| Size | 347 × 161 µm (0.056 mm²) |
|---|---|
| Macro | tt_um_algofoogle_ttgf26a_vco |
| Files | documentation · licence · layout and netlist in Tiny Tapeout GF 26a |
| Tiles | 1 × 1 at column 4, row 19 of the tile grid |
| Mux address | 609 |
| Language | Analog/Mixed |
| Transistors | 2,583 |
| Logic cells | 48 + 347 filler and tap cells |
| Libraries | 9t-5V (48) |
| SRAM | No SRAM |
Process features
Which parts of the GF180MCU process this design uses: its transistor voltages and where they come from, its gate oxides, and any devices drawn by hand outside the standard cells, SRAM and pads.
| 3.3 V | 51 custom transistors |
|---|---|
| 5 V | 9t-5V standard cells |
| Gate oxides | Thin (3.3 V) and thick (5 V/6 V) in the design itself |
| High-resistance poly resistors | 32 (190 µm²) |
Where the area went
How this project's area splits between logic cells, filler and tap cells and other.
- Logic cells 2,196 µm² (4%)
- Filler and tap cells 0.01 mm² (20%)
- Other 0.04 mm² (76%)
Most used cells
The ten standard cells this design uses most.
| Cell | Library | Instances | What it does |
|---|---|---|---|
| buf_1 | 9t-5V | 9 | Buffer |
| clkinv_3 | 9t-5V | 9 | Clock inverter (3x drive) |
| clkbuf_16 | 9t-5V | 5 | Clock buffer (16x drive) |
| aoi21_1 | 9t-5V | 3 | AND-OR-Invert compound gate |
| clkinv_1 | 9t-5V | 3 | Clock inverter |
| dffq_4 | 9t-5V | 3 | D flip-flop (1 bit storage, 4x drive) |
| nor2_1 | 9t-5V | 3 | 2-input NOR gate |
| buf_4 | 9t-5V | 2 | Buffer (4x drive) |
| dffq_2 | 9t-5V | 2 | D flip-flop (1 bit storage, 2x drive) |
| nand2_1 | 9t-5V | 2 | 2-input NAND gate |
Tiny Tapeout and wafer.space are independent companies that work together (announcement). Tiny Tapeout runs its own shuttles: it takes the projects, builds the die, and sells and supports the chips and boards. wafer.space has the dies manufactured on its GF180MCU runs, and these pages are wafer.space's measurements of them. For anything about a Tiny Tapeout project, chip or order, contact Tiny Tapeout.