A29L040AL datasheet(14/30 Pages) AMICC

Part #	A29L040AL

Description	512K X 8 Bit CMOS 3.0 Volt-only, Uniform Sector Flash Memory

PDF	30 Pages

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Manufacturer	AMICC [AMIC Technology]

Direct Link	http://www.amictechnology.com

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14 / 30 page

A29L040A Series

PRELIMINARY (March, 2005, Version 0.0)

AMIC Technology, Corp.

erase operation is complete. If I/O3 is "0", the device will

accept additional sector erase commands. To ensure the

command has been accepted, the system software should

check the status of I/O3 prior to and following each

subsequent sector erase command. If I/O3 is high on the

second status check, the last command might not have been

accepted. Table 5 shows the outputs for I/O3.

START

Read I/O7-I/O0

Toggle Bit

= Toggle ?

Program/Erase

Operation Not

Commplete, Write

Reset Command

Yes

Notes :

1. Read toggle bit twice to determine whether or not it is

toggling. See text.

2. Recheck toggle bit because it may stop toggling as I/O5

changes to "1". See text.

Read I/O7 - I/O0

Twice

I/O5 = 1?

Toggle Bit

= Toggle ?

Yes

Program/Erase

Operation

Commplete

Read I/O7-I/O0

(Notes 1,2)

Figure 4. Toggle Bit Algorithm

(Note 1)

A29L040AL Datasheet(PDF) 14 Page - AMIC Technology