2 Mbit / 4 Mbit / 8 Mbit Multi-Purpose Flash
SST39LF200A / SST39LF400A / SST39LF800A
SST39VF200A / SST39VF400A / SST39VF800A
Data Sheet
TABLE 2: Pin Description
Symbol
Pin Name
Functions
AMS1-A0
Address Inputs
To provide memory addresses. During Sector-Erase AMS-A11 address lines will select the
sector. During Block-Erase AMS-A15 address lines will select the block.
DQ15-DQ0
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#
OE#
WE#
VDD
Chip Enable
Output Enable
Write Enable
Power Supply
To activate the device when CE# is low.
To gate the data output buffers.
To control the Write operations.
To provide power supply voltage:
3.0-3.6V for SST39LF200A/400A/800A
2.7-3.6V for SST39VF200A/400A/800A
VSS
NC
Ground
No Connection
Unconnected pins.
T2.2 1117
1. AMS = Most significant address
MS = A16 for SST39LF/VF200A, A17 for SST39LF/VF400A, and A18 for SST39LF/VF800A
A
TABLE 3: Operation Modes Selection
Mode
Read
CE#
VIL
OE#
VIL
WE#
VIH
VIL
DQ
DOUT
DIN
X1
Address
AIN
Program
Erase
VIL
VIH
VIH
AIN
VIL
VIL
Sector or Block address,
XXH for Chip-Erase
Standby
VIH
X
X
VIL
X
X
X
High Z
X
X
X
Write Inhibit
High Z/ DOUT
High Z/ DOUT
X
VIH
Product Identification
Software Mode
VIL
VIL
VIH
See Table 4
T3.4 1117
1. X can be VIL or VIH, but no other value.
©2007 Silicon Storage Technology, Inc.
S71117-09-000
2/07
7
SST [ SILICON STORAGE TECHNOLOGY, INC ]
