Block Diagram
Figure 1. AT68166FT Block Diagram
CS1
WE1
CS0
WE0
CS3
CS2
WE2
WE3
A[18:0]
OE
BANK1
BANK0
BANK3
BANK2
512k x 8
512k x 8
512k x 8
512k x 8
I/O[15:8]
or
I/O[7:0]
or
I/O[31:24]
or
I/O[23:16]
or
I/O1[31:16]
or
I/O1[15:0]
or
I/O2[31:16]
or
I/O2[15:0]
or
I/O1[7:0]
I/O[7:0]
I/O3[7:0]
I/O2[7:0]
Figure 2. 512K x 8 Banks Block Diagram (AT60142FT)
A0
-
-
-
A10
I/Ox0
I/Ox7
CSx
WEx
OE
Packages
AT68166FT is packed in MQFP68.
Access Times
20 ns
YS
25 ns
18 ns
AT68166FT
YM
YS
The pin assignment depends on the access time. There are 2 versions:
–
–
YM package where 3 pins are not connected.
YS package where the 3 above pins are connected to GND or VCC
.
2
AT68166FT
7531H–AERO–04/09
ATMEL [ ATMEL ]
