Parallel Flash

Part No.	W39L040A
Datasheet	W39L040A.pdf
Description	The W39L040A is a 4Mbit, 3V/3.3V 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. The byte-wide (' 8) data appears on DQ7 ' DQ0. The device can be programmed and erased in-system with a standard 3.3V power supply. A 12-volt VPP is not required. The unique cell architecture of the W39L040A results in fast program/erase operations with extremely low current consumption (compared to other comparable 3.3-volt flash memory products). The device can also be programmed and erased by using standard EPROM programmers
Features	Single 3.3V operation Read access time: 70ns 8 even sectors with 64K bytes Any individual sector can be erased End of program detection: Toggle bit/#Data polling Typical program/erase cycles: 10K Twenty-year data retentions JEDEC standard byte-wide pinouts
Diagram
Package	32-pin PLCC Lead free, 32-pin STSOP (8 x 14 mm) Lead free, 32-pin PDIP and 32-pin TSOP (8 x 20 mm)
Other Files	N/A
Development Tools	N/A
Others	N/A