CSOP 14 refers to "carrier small outline package 14", that is, carrier small epitaxial package 14 pin. CSOP 14 package is usually used to package integrated circuits and has 14 pins. The pin spacing of the package is small, and the package size is relatively small, which is convenient for saving space when layout on the circuit board. CSOP 14 package is made by suspension welding technology and is commonly used in various electronic devices.
SOP 14 refers to "small outline package 14", that is, small epitaxial package 14 pin. SOP 14 package also has 14 pin, which is smaller than other package types. The pin spacing of SOP 14 package is slightly larger than that of CSOP 14, which is convenient for manual and automatic welding. This form of packaging is common in communications, computers and consumer electronics products.
To sum up, the differences between CSOP 14 and SOP 14 are mainly pin spacing and package size. The choice of packaging form depends on the specific application scenarios and design requirements.