RS-232 Interface IC, +5V Powered, Multichannel RS-232 Drivers/Receivers, 20 Pin DIP The Estes launch pad is

The Estes launch pad is used for launching Estes E size model rockets

CMOS Logic "1" (HI LED): >70% Vcc±10%

highest output frequency 50MHz

The PVC strap is suitable for cards with a 5/8" Slot

RS-232 Interface IC, +5V Powered, Multichannel RS-232 Drivers/Receivers, 20 Pin DIP The Estes launch pad isThe MAX220MAX249 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. The MAX225, MAX233, MAX235, and MAX245 MAX246 MAX247 use no external components and are recommended for applications where printed circuit board space is critical. The MAX220 MAX249 are offered in 26 different packages with temperatures from 0 to +70C up to 55C to +125C. See