The TC281 is a frame-transfer charge-coupled-device (CCD) image sensor that provides a very high-resolution image acquisition capability for image-processing applications such as robotic vision, medical X-ray analysis, and metrology. The image sensing area measures 8 mm horizontally and 8 mm vertically; the image-area diagonal measures 11,3 mm and the sensor has 8-m square pixels. The image area contains 1000 active lines with 1000 active pixels per line. The dark reference signal can be obtained from ten dark reference lines located between the image area and the storage area, 28 dark reference pixels located at the left edge of each horizontal line, and 8 dark reference pixels located at the right edge of each horizontal line. The storage section of the TC281 contains 1010 lines with 1036 pixels per line. The area is protected from exposure to light by a metal layer. Photoelectric charge that is generated in the image area of the sensor can be transferred into the storage section in less than 110 s. After the image capture is completed (integration time), the image readout is accomplished by transferring charge, one line at a time, into the serial register located below the storage area. The serial register contains 1036 active pixels and 9 dummy pixels. The maximum serial-register data rate is 40 megapixels per second. If the storage area needs to be cleared of all charge, charge may be quickly transferred across the serial registers into the clearing drain located below the register.