EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 27

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

Figure 4. Power on Sequene and Auto Refresh (CBR)
Preliminary
A0 - A 8
CAS#
RAS#
DQM
CKE
CS#
WE#
CLK
DSF
A 9
DQ
BS
Hi-Z
stable for 200 s
Inputs must be
T0
PrechargeALL
High level
is reauired
T 1
Command
t
T2 T3
CK2
t
RP
Mode Register
Set Command
Address Key
T4 T5
1st AutoRefresh
Command
T6
Minimum of 2 Refresh Cycles are required
T7
T8 T9
T10 T 11 T12 T13 T14 T15 T16 T 17 T18 T19 T20 T21 T22
27
2nd Auto Refresh
Command
t
RC
Command
Any
EM636327
December
1998