EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 65

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

Figure 18.3. Full Page Read 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
CK3
T2
Command
Bank A
CAx
Read
T3
T4
Command
Activate
Bank B
RBx
RBx
T5
Ax
T6
Ax+1 Ax+2 Ax-2 Ax-1
The burst counter wraps
from the highest order
page address back to zero
during this time interval
T7
(Burst Length=Full Page, CAS# Latency=3)
T8
T9
Command
Bank B
CBx
Read
65
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Ax
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.
Ax+1 Bx
Bx+1
Bx+2
Burst Stop
Command
Bx+3 Bx+4
Precharge
Command
Bank B
Bx+5
t
RP
EM636327
Command
Activate
Bank B
RBy
RBy
December
1998