The TM124GU8A is composed of two TMS44400, 1 048 576 x 4 bit dynamic RAMs in 20/26-lead plastic small-outline J-lead packages (SOJs). The TM124GU8A is mounted on a substrate with decoupling capacitors. The onboard capacitors eliminate the need for bypassing on the motherboard and offer superior performance over equivalent leaded capacitors due to reduced lead inductance. With the elimination of bypass capacitors on the motherboard, reduced PC board size, and fewer plated through-holes, a cost savings can be realized.