EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 67

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

Figure 19.2. Full Page Write Cycle
Preliminary
A0 ~ A8
CA S#
RAS#
DQM
CKE
CS#
WE#
DSF
CLK
A 9
BS
DQ
High
Hi-Z
Command
Activate
Bank A
RAx
RAx
T0
T 1
t
CK2
Command
Bank A
CAx
Write
DAx
T2
DAx+ 1
T3
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
T4
T5
T6
DAx
T7
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.
DAx+ 1
(Burst Length=Full Page, CAS# Latency=2)
T8
Command
Bank B
CBx
DBx
Write
T9
DBx+ 1 DBx+ 2 DBx+ 3 DBx+ 4 DBx+ 5 DBx+ 6
67
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Data is ignored
Burst Stop
Command
Precharge
Command
Bank B
Command
Activate
Bank B
EM636327
RBy
RBy
December
1998