AN106 - Migrating from FM20L08 to FM28V100 | Cypress Semiconductor
AN106 - Migrating from FM20L08 to FM28V100
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.