14

Data Sheet

2 Mbit / 4 Mbit Small-Sector Flash

SST29SF020 / SST29SF040

SST29VF020 / SST29VF040

©2005 Silicon Storage Technology, Inc.

S71160-13-000

10/06

FIGURE 11: Software ID Entry and Read

1160 F09.1

ADDRESS AMS-0

DQ7-0

WE#

SW0

SW1

SW2

SW3

SW4

SW5

555

2AA

2AA

555

555

55

10

55

AA

80

AA

555

OE#

CE#

SIX-BYTE CODE FOR CHIP-ERASE

TSCE

TWP

Note: This device also supports CE# controlled Chip-Erase operation The WE# and CE# signals are interchangeable as

long as minimum timings are met. (See Table 11)

1160 F10.1

ADDRESS A14-0

DQ7-0

WE#

SW1

SW0

SW2

Device ID

555

2AA

555

0000

0001

OE#

CE#

Three-Byte Sequence for

Software ID Entry

TWP

TWPH

TAA

BF

55

AA

90

TIDA

Note: Device ID = 24H for SST29SF020, 13H for SST29SF040

25H for SST29VF020, 14H for SST29VF040