An Analog Memory For a QCIF format image frame storage

An Analog Memory suitable to storage a fotogenerated image frame is described. An architecture that allows a fast writing rate is presented. The Memory has a serial input and eight channels parallel output; it can store a QCIF image (176x144 pixels) for 1/15 sec with an equivalent precision of 7bit. Nominal input writing frequency is 2,5MHz and output reading frequency is 0,833MHz. The CHIP needs an external reference clock at 2.5MHz. suppose it is sufficiently easy to dissipate the warmth so that a temperature condition is satisfied. The single cell size is 22x21,2μm. The consumption power of the chip is 6mW@5Volts power supply. It has been made using a 0,7μm CMOS technology supplies by SGS-Thomson.