器件名称: W39V040FAT
功能描述: 512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
文件大小: 518.43KB 共36页
简 介:W39V040FA 512K × 8 CMOS FLASH MEMORY WITH FWH INTERFACE
1. GENERAL DESCRIPTION
The W39V040FA is a 4-megabit, 3.3-volt only CMOS flash memory organized as 512K × 8 bits. For flexible erase capability, the 4Mbits of data are divided into 8 uniform sectors of 64 Kbytes, which are composed of 16 smaller even pages with 4 Kbytes. The device can be programmed and erased insystem with a standard 3.3V power supply. A 12-volt VPP is not required. The unique cell architecture of the W39V040FA results in fast program/erase operations with extremely low current consumption. This device can operate at two modes, Programmer bus interface mode and FWH bus interface mode. As in the Programmer interface mode, it acts like the traditional flash but with a multiplexed address inputs. But in the FWH interface mode, this device complies with the Intel FWH specification. The device can also be programmed and erased using standard EPROM programmers.
2. FEATURES
Single 3.3-volt operations: Hardware protection:
3.3-volt read 3.3-volt erase 3.3-volt program
Fast Program operation:
Optional 16K byte or 64K byte Top Boot Block with lockout protection #TBL & #WP support the whole chip hardware protection
Flexible 4K-page size can be used as
Byte-by-Byte programming: 35 S (typ.)
Fast erase operation:
Parameter Blocks
Low power consumption
Chip erase 100 mS (max.) Sector erase 25 mS (max.) Page erase 25 mS (max.)
Fast Read access time: Tkq 11 nS Endurance: 10K cycles (typ.) Twenty-y……
