Semiconductor memory devices and methods of controlling bitlines of such devices in which bitlines of a memory cell array adjacent to an activated memory cell array are precharged to the same voltage. The binding is based on information from the data source. Compared to conventional fishing reel spools, this invention provides a spool having advantages such as better structural design, wider adjustable brake range, superior line-loading force application, well-functioned water drainer system, low manufacturing cost and lower material usage. The spider springs are seated directly against the coil form and secured by adhesive fillets disposed on the outward-facing spring circumferences. The baffle defines a first fluid cavity and an exit cavity that are in operative communication with each other and the compression chamber.