EM638165 Etron Technology Inc., EM638165 Datasheet - Page 21

• Manufacturer Part Number: EM638165
• Description: 4Mega x 16 Synchronous DRAM (SDRAM)
• Manufacturer: Etron Technology Inc.

Figure 3. Auto Refresh (CBR)
Preliminary
A0-A9,A11
BA0,1
RAS#
CAS#
CKE
CS#
WE#
CLK
DQM
A10
DQ
T0
PrechargeAll
Command
T 1 T2
t
CK2
t
RP
AutoRefresh
Command
T3
T4
T5
(Burst Length=4, CAS# Latency=2)
T6
t
RC
T7
T8
AutoRefresh
Command
T9
21
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
t
RC
Command
Activate
Bank A
RAx
RAx
Command
Bank A
Read
CAx
Rev 0.6
EM638165
Ax0 Ax1
Feb. 2001
Ax2 Ax3