EM638165 Etron Technology Inc., EM638165 Datasheet - Page 20

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

Figure 2. AC Parameters for Read Timing
Preliminary
A0-A9,A11
BA0,1
RAS#
CAS#
DQM
CKE
CS#
WE#
CLK
A10
DQ
Hi-Z
t
T0
CH
t
IS
t
CL
T 1
t
IS
Command
Activate
Bank A
RAx
RAx
T2
t
t
IS
CK2
t
RCD
t
t
IH
IH
T3
Command
Bank A
t
Read
RRD
CAx
T4
T5
t
t
LZ
AC2
Command
Activate
Bank B
20
RBx
RBx
Ax0
(Burst Length=2, CAS# Latency=2)
T6
t
AC2
t
t
OH
RAS
Ax1
T7
Auto Precharge
t
HZ
t
Command
Read with
RC
Bank B
CBx
Begin AutoPrecharge
T8
Bank B
T9
Precharge
Command
Bank A
Bx0
T10
t
RP
Rev 0.6
Bx1
T 11
t
t
EM638165
IH
HZ
Command
Activate
RAy
RAy
Bank A
T12
Feb. 2001
T13