HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 1000

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

Section 25 Electrical Characteristics
Rev. 4.00 Sep. 14, 2005 Page 950 of 982
REJ09B0023-0400
A12/A11*
D31 to D0
A25 to A0
DACKn*
RASU/L
CASU/L
RD/WR
DQMxx
CKIO
CKE
CSn
BS
1
2
Note:
Figure 25.38 Synchronous DRAM Self-Refreshing Timing
t
t
AD1
t
t
RASD1
t
CSD1
RWD1
AD1
1. An address pin to be connected to pin A10 of SDRAM.
2. Waveform for DACKn when active low is selected.
3. Pins D31 to D16 with weak keeper are retained as weak keepers.
Tp
t
t
RWD1
t
RASD1
CSD1
Tpw
t
t
t
RASD1
CASD1
t
CSD1
CKED1
(WTRP = 1 Cycle)
Trr
t
t
t
t
RASD1
AD1
CASD1
t
CSD1
AD1
Trc
(Hi-Z)*
3
t
CKED1
Trc
Trc
Trc
t
RWD1