HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 989

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Figure 25.27 Synchronous DRAM Single Write Bus Cycle
A12/A11*
D31 to D0
Note:
A25 to A0
DACKn*
RASU/L
CASU/L
RD/WR
DQMxx
CKIO
CKE
CSn
BS
1. An address pin to be connected to pin A10 of SDRAM.
2. Waveform for DACKn when active low is selected.
(Auto Precharge, TRWL = 1 Cycle)
1
2
t
t
t
t
t
t
t
AD1
AD1
DQMD1
DACD
RASD1
CSD1
RWD1
Tr
address
Row
t
t
t
t
t
t
BSD
t
AD1
AD1
RWD1
WDD2
CASD1
RASD1
command
Tc1
address
WriteA
Column
(High)
t
t
t
t
t
t
t
t
AD1
t
BSD
AD1
RWD1
DQMD1
WDH2
CASD1
DACD
CSD1
Rev. 4.00 Sep. 14, 2005 Page 939 of 982
Trwl
Section 25 Electrical Characteristics
REJ09B0023-0400