HYB18M1G160BF-6 QIMONDA [Qimonda AG], HYB18M1G160BF-6 Datasheet - Page 22

• Manufacturer Part Number: HYB18M1G160BF-6
• Description: 1-Gbit x16 DDR Mobile-RAM
• Manufacturer: QIMONDA [Qimonda AG]

1)
2.4.5
READ bursts are initiated with a READ command, as shown
in
Basic timings for the DQs are shown in
to all read operations.
The starting column and bank addresses are provided with
the READ command and Auto Precharge is either enabled or
disabled for that burst access. If Auto Precharge is enabled,
the row that is accessed will start precharge at the completion
of the burst, provided
READ commands used in the following illustrations, Auto
Precharge is disabled.
Rev.1.0, 2007-03
10242006-Y557-TZXW
Parameter
ACTIVE to ACTIVE command period
ACTIVE to READ or WRITE delay
ACTIVE bank A to ACTIVE bank B delay
Figure
These parameters account for the number of clock cycles and depend on the operating frequency, as follows:
no. of clock cycles = specified delay / clock period; round to the next higher integer.
12.
READ
t
RAS
has been satisfied. For the generic
Figure
13; they apply
22
t
t
t
Symbol
RC
RCD
RRD
Timing Parameters for ACTIVE Command
60
18
12
BA0,BA1
min.
A0-A9
BA = Bank Address
CA = Column Address
AP = Auto Precharge
CKE
RAS
CAS
A10
- 6
WE
CK
CK
CS
–
–
–
max.
(High)
= Don't Care
Disable AP
Enable AP
65
22.5
15
min.
CA
HY[B/E]18M1G16[0/1]BF
AP
BA
1-Gbit DDR Mobile-RAM
- 7.5
–
–
–
max.
READ Command
FIGURE 12
TABLE 10
Unit Note
ns
ns
ns
Data Sheet
1)