Datasheet

©2013 Silicon Storage Technology, Inc. DS25022B 04/13
6
1 Mbit / 2 Mbit / 4 Mbit Multi-Purpose Flash
SST39SF010A / SST39SF020A / SST39SF040
Data Sheet
Table 1: Pin Description
Symbol Pin Name Functions
A
MS
1
-A
0
Address Inputs To provide memory addresses.
During Sector-Erase A
MS
-A
12
address lines will select the sector.
DQ
7
-DQ
0
Data Input/output To output data during Read cycles and receive input data during Write cycles.
Data is internally latched during a Write cycle.
The outputs are in tri-state when OE# or CE# is high.
CE# Chip Enable To activate the device when CE# is low.
OE# Output Enable To gate the data output buffers.
WE# Write Enable To control the Write operations.
V
DD
Power Supply To provide 5.0V supply (4.5-5.5V)
V
SS
Ground
NC No Connection Unconnected pins.
T1.2 25022
1. A
MS
= Most significant address
A
MS
= A
16
for SST39SF010A, A
17
for SST39SF020A, and A
18
for SST39SF040