Part Number : M28W640ECT
Function : 64 MBIT (4MB X16, BOOT BLOCK), 3V SUPPLY FLASH MEMORY
Package : SSOP 48 Pin Type
Maker : STMicroelectronics
Pinouts : 
Description :
The M28W640ECT, M28W640EC is a 64 Mbit (4 Mbit x 16) nonvolatile Flash memory that can be erased electrically at block level and programmed in-system on a Word-by-Word basis using a 2.7V to 3.6V VDD supply for the circuitry and a 1.65V to 3.6V VDDQ supply for the Input/Output pins. An optional 12V VPPpower supply is provided to speed up custom er programming.
Features
1. PROGRAMMING TIME :
(1) 10μs typical
(2) Double Word Programming Option
(3) Quadruple Word Programming Option
2. COMMON FLASH INTERFACE
3. MEMORY BLOCKS
(1) Parameter Blocks (Top or Bottom location)
(2) Main Blocks
4. BLOCK LOCKING
(1) All blocks locked at Power Up
(2) Any combination of blocks can be locked
Datasheet PDF Download : 
Others datasheet of same file :
M28W640EC-ZBT, M28W640ECB, M28W640ECB10N1,
M28W640ECB10N1E, M28W640ECB10N1F, M28W640
