The FM20L08 (128Kx8) and FM28V100 (128Kx8) devices are offered in the 32-pin TSOP-I package.The package body size is 8.0 x 13.4 mm and the pin pitch is 0.5 mm. The two devices are not pin compatible with each other, but they are very similar. It is possible to design a pc board such that either device can populate the board.
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