The VD5640 is a 1.28-megapixel monochrome CMOS image sensor manufactured by STMicroelectronics. It delivers a 1304 × 980 pixel array with a 3.75 µm pixel pitch, providing efficient photon collection at each photosite. The optical format spans a 6.117 mm diagonal with a 326:245 aspect ratio, characteristic of 1/3-inch sensors widely used in embedded and surveillance systems. With 3.75 µm pixels, the sensor features compact pixel pitch suited for high-resolution imaging in space-constrained camera designs.