Raspberry Pi UART Expansion Module User Manual
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8:More information
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The MAX220–MAX249 family of line drivers/receivers is intended for all
EIA/TIA-232E and V.28/V.24 communications interfaces, particularly applications where
±12V is not available.
These parts are especially useful in battery-powered systems, since their low-power
shutdown mode reduces power dissipation to less than 5µW. The MAX225, MAX233,
MAX235, and MAX245/MAX246/MAX247 use no external components and are
recommended for applications where printed circuit board space is critical.
8.1:Schematic diagram
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