AN4570 datasheet(12/46 Pages) STMICROELECTRONICS

Part #	AN4570

Description	This application note describes how to use the high-density

PDF	46 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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12 / 46 page

Interfacing with a non-multiplexed, asynchronous 16-bit NOR Flash memory

AN4570

12/46

DocID026804 Rev 1

Using the memory timings in Table 4 and the FMC asynchronous timings in Table 3, we can

compute the following values:

•

For the M29W128 NOR Flash memory, the timings are:

–

Address setup time: 0x0

–

Data setup time: 0x3

•

For the S29GL128P NOR Flash memory, the timings are:

–

Address setup time: 0x2

–

Data setup time: 0x3

Note:

The S29GL128P NOR Flash memory timings are also valid for the M29W128 NOR Flash

memory.

Table 4. NOR Flash memory timings

Symbols

Parameter

Value

Unit

M29W128xx70 S29GL128P90

tWC

Address valid to next address valid for write

operation

tRC

Address valid to next address valid for read

access

tWP

Write Enable low to Write Enable high

tAVQV

Address valid to output valid

AN4570 Datasheet(PDF) 12 Page - STMicroelectronics