EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 63

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

Figure 18.1. Full Page Read 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
Command
Bank A
t
Read
CAx RBx
RRD
T 1
t
Command
CK1
Activate
Bank B
RBx
Ax
T2
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
T3
T4
T5
T6
Ax
T7
Command
Bank B
CBx
Ax+1 Bx
Read
(Burst Length=Full Page, CAS# Latency=1)
T8
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
Bx+1
63
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Bx+2
Bx+3 Bx+4
Bx+5
Bx+6 Bx+7
Burst Stop
Command
Precharge
Command
Bank B
t
Command
RP
Activate
Bank B
RBy
RBy
EM636327
December
1998