EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 24

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

Timing Waveforms
Figure 1. AC Parameters for Write Timing
Preliminary
A0 - A 8
CA S#
RAS#
DQM
CKE
CS#
WE#
CLK
DSF
A 9
DQ
BS
t
Hi-Z
CH
T0
t
t
IS
IS
T 1
Command
t
Activate
Bank A
CL
RAx
RBx
T2
t
t
t
IH
RCD
IS
AutoPrecharge
t
T3
t
IH
CK2
Write with
Command
Bank A
CAx
Ax0
T4
Ax1
T5
t
Command
RC
Activate
Bank B
Ax2
RBx
RBx
T6
Begin AutoPrecharge
Ax3
AutoPrecharge
T7
Write with
Command
Bank A
Bank B
CBx
Bx0
t
T8
DAL
Bx1
T9
Command
Activate
Bank A
RAy
RAy
Bx2
T10 T 11 T12 T13 T14 T15 T16 T 17 T18 T19 T20 T21 T22
24
(Burst Length=4, CAS# Latency=2)
t
Begin AutoPrecharge
IS
Bx3
Command
Bank B
Bank A
CAy
Ay0
Write
Ay1
t
IH
Ay2
Ay3
t
Precharge
Command
WR
Bank A
t
RP
Command
Activate
Bank A
RAz
RAz
t
RRD
EM636327
t
IS
Command
Activate
Bank B
RBy
RBy
December
1998