User guide

4
8715C–SFLSH–11/2012
AT25DF081A
3. Block Diagram
Figure 3-1. Block Diagram
V
CC
DEVICE POWER SUPPLY: The V
CC
pin is used to supply the source voltage to the device.
Operations at invalid V
CC
voltages may produce spurious results and should not be
attempted.
-Power
GND
GROUND: The ground reference for the power supply. GND should be connected to the
system ground.
-Power
Table 2-1. Pin Descriptions (Continued)
Symbol Name and Function
Asserted
State Type
Figure 2-1. 8-SOIC (Top View) Figure 2-2. 8-UDFN (Top View)
CS
SO (SOI)
WP
GND
1
2
3
4
8
7
6
5
VCC
HOLD
SCK
SI (SIO)
CS
SO (SOI)
WP
GND
1
2
3
4
8
7
6
5
VCC
HOLD
SCK
SI (SIO)
FLASH
MEMORY
ARRAY
Y-GATING
CS
SCK
SO (SOI)
SI (SIO)
Y-DECODER
ADDRESS LATCH
X-DECODER
I/O BUFFERS
AND LATCHES
CONTROL AND
PROTECTION LOGIC
SRAM
DATA BUFFER
WP
INTERFACE
CONTROL
AND
LOGIC
HOLD