SST39LF080 datasheet(4/26 Pages) SST

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Data Sheet

8 Mbit / 16 Mbit Multi-Purpose Flash

SST39LF080 / SST39LF016 / SST39VF080 / SST39VF016

S71146-03-000

6/01

396

Product Identification

The Product Identification mode identifies the device as the

SST39LF080,

SST39VF080,

SST39LF016,

and

SST39VF016 and manufacturer as SST. This mode may

be accessed by software operations. Users may use the

Software Product Identification operation to identify the part

(i.e., using the device ID) when using multiple manufactur-

ers in the same socket. For details, see Table 4 for software

operation, Figure 11 for the Software ID Entry and Read

timing diagram and Figure 18 for the Software ID Entry

command sequence flowchart.

Product Identification Mode Exit/

CFI Mode Exit

In order to return to the standard Read mode, the Software

Product Identification mode must be exited. Exit is accom-

plished by issuing the Software ID Exit command

sequence, which returns the device to the Read operation.

This command may also be used to reset the device to the

Read mode after any inadvertent transient condition that

apparently causes the device to behave abnormally, e.g.,

not read correctly. Please note that the Software ID Exit/

CFI Exit command is ignored during an internal Program or

Erase operation. See Table 4 for software command

codes, Figure 13 for timing waveform and Figure 18 for a

flowchart.

TABLE

1: PRODUCT IDENTIFICATION

Address

Data

Manufacturer’s ID

0000H

BFH

Device ID

SST39LF/VF080

0001H

D8H

SST39LF/VF016

0001H

D9H

T1.2 396

Y-Decoder

I/O Buffers and Data Latches

396 ILL B1.2

Address Buffer & Latches

X-Decoder

DQ7 - DQ0

Memory

Address

OE#

CE#

WE#

SuperFlash

Memory

Control Logic

FUNCTIONAL BLOCK DIAGRAM

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