FAMP0417CAX-W70E Datasheet, PDF (12/12 Pages) FIDELIX – 256K x 16 bit Super Low Power and Low Voltage Full CMOS RAM

FMP0417CAx-W70E
3. Deep Power Down Mode Entry/Exit
A4
/CS
/UB, /LB
tAS(3)
tWC
tCW(2)
tAW
tBW
/WE
/ZZ
tZZWE
tWP(1)
tWR(4)
tZZmin
CMOS LPRAM
tR
Next
Cycle
Register
Write(DPD)
Deep Power
down start
Parameter
Description
Min
tZZWE
ZZ low to Write Enable Low
0
tR(Deep Power Down Mode only)
Operation Recovery Time
200
tZZmin
Low Power Mode Time
10
Deep Power
down exit
Max
Units
1
us
-
us
-
us
4. Address Information
Partial Array Refresh Mode (A3=0, A4=1)
A2
A1,A0
0
11
Refresh Section
1/4
0
10
1/2
X
00
Full
1
11
1/4
1
10
1/2
Address
00000h-0FFFFh
00000h-1FFFFh
00000h-3FFFFh
30000h-3FFFFh
20000h-3FFFFh
Size
64Kbx16
128Kbx16
256Kbx16
64Kbx16
128Kbx16
Density
1Mb
2Mb
4Mb
1Mb
2Mb
Reduced Memory Size Mode (A3=1, A4=1)
A2
A1,A0
0
11
0
10
1
11
1
10
Refresh Section
1/4
1/2
1/4
1/2
Address
00000h-0FFFFh
00000h-1FFFFh
30000h-3FFFFh
20000h-3FFFFh
Size
64Kbx16
128Kbx16
64Kbx16
128Kbx16
Density
1Mb
2Mb
1Mb
2Mb
12
Revision 0.0
Feb. 2008