EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 68

• Manufacturer Part Number: EM636327Q-7
• Description: 512K x 32 High Speed Synchronous Graphics DRAM(SGRAM)
• Manufacturer: Etron Technology Inc.

Figure 19.3. Full Page Write Cycle
Preliminary
A0 ~ A8
CA S#
RAS#
DQM
CKE
CS#
WE#
CLK
DSF
A 9
BS
DQ
High
Hi-Z
Command
Activate
Bank A
RAx
RAx
T0
t
T 1
CK3
T2
Command
Bank A
CAx
Write
DAx
T3
DAx+ 1
T4
Command
Activate
Bank B
DAx+ 2 DAx+ 3 DA x- 1
The burst counter wraps
from the highest order
page address back to zero
during this time interval
RBx
RBx
T5
T6
T7
DAx
(Burst Length=Full Page, CAS# Latency=3)
T8
DAx+ 1
Full Page burst operation does
not terminate when the burst
length is satisfied; the burst counter
increments and continues bursting
beginning with the starting address.
T9
Command
Bank B
CBx
DBx
Write
68
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
DBx+ 1 DBx+ 2 DBx+ 3 DBx+ 4 DBx+ 5
Burst Stop
Command
Precharge
Command
Bank B
Data is ignored
EM636327
Command
Activate
Bank B
RBy
RBy
December
1998