W25B40A

www.DataSheet4U.com W25B40/W25B40A 4M-BIT SERIAL FLASH MEMORY WITH BOOT AND PARAMETER SECTORS Formally NexFlash NX25B40 The Winbond W25B40 / W25B40A is fully compatible with the previous NexFlash NX25B40 Serial Flash memory. -1- Publication Release Date: January 6, 2006 Revision M W25B40/W25B40A Table of Contents1. 2. 3. 4. GENERAL DESCRIPTION ......................................................................................................... 4 FEATURES ................................................................................................................................. 4 PIN CONFIGURATION ............................................................................................................... 5 PIN DESCRIPTION..................................................................................................................... 5 4.1 4.2 4.3 4.4 4.5 4.6 4.7 5. 6. 7. Package Types ............................................................................................................... 5 Chip Select (/CS) ............................................................................................................ 5 Serial Data Output (DO) ................................................................................................. 6 Write Protect (/WP)......................................................................................................... 6 Hold (/HOLD) .............................................................................