Implemented VSSOP-8-0.65mm

src/fn/index.ts

@@ -46,3 +46,4 @@ export { sod882d } from "./sod882d"
 export { melf } from "./melf"
 export { micromelf } from "./micromelf"
 export { smb } from "./smb"
+export { vssop8 } from "./vssop8"

src/fn/vssop8.ts

@@ -0,0 +1,88 @@
+import type { AnySoupElement, PcbSilkscreenPath } from "circuit-json"
+import { z } from "zod"
+import { rectpad } from "../helpers/rectpad"
+import { silkscreenRef, type SilkscreenRef } from "src/helpers/silkscreenRef"
+import { length } from "circuit-json"
+
+export const vssop8_def = z.object({
+  fn: z.string(),
+  num_pins: z.literal(8).default(8),
+  w: z.string().default("2.3mm"),
+  h: z.string().default("3.0mm"),
+  pl: z.string().default("0.3mm"),
+  pw: z.string().default("0.25mm"),
+  pad_spacing: z.string().default("0.65mm"),
+})
+
+export const vssop8 = (
+  raw_params: z.input<typeof vssop8_def>,
+): { circuitJson: AnySoupElement[]; parameters: any } => {
+  const parameters = vssop8_def.parse(raw_params)
+
+  // Define silkscreen reference text
+  const silkscreenRefText: SilkscreenRef = silkscreenRef(
+    0,
+    length.parse(parameters.h) / 2 + 0.5, // Adjusted to move above the yellow box
+    0.3,
+  )
+
+  // Define silkscreen boundary
+  const silkscreenLine: PcbSilkscreenPath = {
+    type: "pcb_silkscreen_path",
+    layer: "top",
+    pcb_component_id: "",
+    route: [
+      { x: -length.parse(parameters.w) / 2, y: length.parse(parameters.h) / 2 },
+      { x: length.parse(parameters.w) / 2, y: length.parse(parameters.h) / 2 },
+      { x: length.parse(parameters.w) / 2, y: -length.parse(parameters.h) / 2 },
+      {
+        x: -length.parse(parameters.w) / 2,
+        y: -length.parse(parameters.h) / 2,
+      },
+      { x: -length.parse(parameters.w) / 2, y: length.parse(parameters.h) / 2 },
+    ],
+    stroke_width: 0.1,
+    pcb_silkscreen_path_id: "",
+  }
+
+  return {
+    circuitJson: vssop8Pads(parameters).concat(
+      silkscreenLine as AnySoupElement,
+      silkscreenRefText as AnySoupElement,
+    ),
+    parameters,
+  }
+}
+
+// Get coordinates for VSSOP-8 pads
+export const getVssop8Coords = (parameters: {
+  pn: number
+  pad_spacing: number
+}) => {
+  const { pn, pad_spacing } = parameters
+  const row = pn <= 4 ? -1 : 1 // Bottom row (1-4) or top row (5-8)
+  const col = ((pn - 1) % 4) - 1.5 // Distribute pads along width
+  return { x: col * pad_spacing, y: row * 0.5 * length.parse("3.0mm") }
+}
+
+// Generate pads for VSSOP-8
+export const vssop8Pads = (parameters: z.infer<typeof vssop8_def>) => {
+  const pads: AnySoupElement[] = []
+
+  for (let i = 1; i <= parameters.num_pins; i++) {
+    const { x, y } = getVssop8Coords({
+      pn: i,
+      pad_spacing: Number.parseFloat(parameters.pad_spacing),
+    })
+    pads.push(
+      rectpad(
+        i,
+        x,
+        y,
+        Number.parseFloat(parameters.pl),
+        Number.parseFloat(parameters.pw),
+      ),
+    )
+  }
+  return pads
+}

tests/vssop8.test.ts

@@ -0,0 +1,9 @@
+import { test, expect } from "bun:test"
+import { convertCircuitJsonToPcbSvg } from "circuit-to-svg"
+import { fp } from "../src/footprinter"
+
+test("vssop8", () => {
+  const circuitJson = fp.string("vssop8_0.65mm").circuitJson()
+  const svgContent = convertCircuitJsonToPcbSvg(circuitJson)
+  expect(svgContent).toMatchSvgSnapshot(import.meta.path, "vssop8_0.65mm")
+})