MB86R01 Datasheet, PDF (27/89 Pages) Fujitsu Component Limited. – MB86R01 DATA SHEET

MB86R01 DATA SHEET
7.2.13. DDR2 related pin
Pin name
I/O Polarity
Analog
/Digital
Type
Status of pin
after reset
Explanation
MA[13:0]
O
P
D
-
H
Address
MBA[1:0]
O
P
D
-
H
Bank address
MDQ[31:0]
IO
P
D
-
H
Data (*5)
MDM[3:0]
O
P
D
-
HiZ Data mask (*6)
MDQSP[3:0]
IO
P
D
-
HiZ Data strobe (*5)
MDQSN[3:0]
IO
N
D
-
HiZ Data strobe (*5)
MCKP
O
P
D
CLK
L
Clock output
MCKN
O
N
D
CLK
H
Clock output
MCKE
O
P
D
-
L
Clock enable
MCS
O
N
D
-
L
Chip select
MRAS
O
N
D
-
H
Row address strobe
MCAS
O
N
D
-
H
Column address strobe
MWE
O
N
D
-
H
Write enable
DDRVDE
I
-
A
-
-
SSTL_18 1.8V power supply
VREF1
I
-
A
-
-
Reference voltage input
(DDRVDE/2)
VREF0
I
-
A
-
-
Reference voltage input
(DDRVDE/2)
OCD
O
-
A
-
-
Off chip driver reference voltage input (*1)
ODT
O
-
A
-
-
On-die termination reference voltage input (*2)
ODTCONT
O
P
D
-
L
On-die termination control (*3)
MCKE_START
I
P
D
-
-
Set a state of MCKE in reset
0: Low (*4)
1: High (reserved)
DDRTYPE
I
P
D
-
-
Pull-up pin to VDDE via high resistance
*1: Pull up the pin to DDRVDE (1.8V power supply), via 200Ω resistance
*2: PCB impedance Z = 100Ω or 50Ω: Pull up pin to DDRVDE (1.8V power supply), via a 180Ω resistance.
PCB impedance Z = 150Ω or 75Ω: Pull up pin to DDRVDE (1.8V power supply), via a 240Ω resistance.
*3: It connects it with the ODT pin of DDR2SDRAM
*4: Pull down pin to VSS, via high resistance
*5: This is process of unused pin at 16 bit mode. Pull down the pin to VSS via high resistance.
Unused pins at 16 bit mode are as follows:
"MDQ[31:16], MDQSP[3:2], MDQSN[3:2]"
*6: This is process of MDM[3:2] at 16 bit mode. Be sure to open this pin.
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PROPRIETARY AND CONFIDENTIAL