參數(shù)資料
型號(hào)： HYB18L128160BF-75
廠商： INFINEON TECHNOLOGIES AG
英文描述： ECONOLINE: RKZ - Safety standards and approvals: EN 60950 certified, rated for 250VAC (LVD test report)- Custom Solutions Available- 3kVDC & 4kVDC Isolation- UL94V-0 Package Material- Power Sharing on Output- Efficiency to 84%
中文描述： 針對(duì)移動(dòng)應(yīng)用的DRAM
文件頁(yè)數(shù)： 23/53頁(yè)
文件大小： 1328K
代理商： HYB18L128160BF-75
HY[B/E]18L128160B[C/F]-7.5
128-Mbit Mobile-RAM
Functional Description
Data Sheet
23
V1.4, 2004-04-30
During READ bursts, the valid data-out element from the starting column address is available following the CAS
latency after the READ command. Each subsequent data-out element is valid nominally at the next positive clock
edge. Upon completion of a READ burst, assuming no other READ command has been initiated, the DQs go to
High-Z state.
Figure 13
and
Figure 14
show single READ bursts for each supported CAS latency setting.
Figure 13
Single READ Burst (CAS Latency = 2)
Table 10
Parameter
Timing Parameters for READ
Symbol
- 7.5
Units
Notes
min.
–
–
1.0
3.0
2.5
–
67
19
45
19
max.
5.4
6.0
–
7.0
–
2
–
–
100k
–
Access time from CLK
CL = 3
CL = 2
t
AC
t
AC
t
LZ
t
HZ
t
OH
t
DQZ
t
RC
t
RCD
t
RAS
t
RP
ns
ns
ns
ns
ns
t
CK
ns
ns
ns
ns
–
DQ low-impedance time from CLK
DQ high-impedance time from CLK
Data out hold time
DQM to DQ High-Z delay (READ Commands)
ACTIVE to ACTIVE command period
ACTIVE to READ or WRITE delay
ACTIVE to PRECHARGE command period
PRECHARGE command period
–
–
–
1)
1)
1)
1)
1) 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 up to next integer.
Ba A, Col n = bank A, column n
DO n = Data Out from column n
Burst Length = 4 in the case shown.
3 subsequent elements of Data Out are provided in the programmed order following DO n.
= Don't Care
CL=2
t
RCD
t
RAS
t
RC
t
RP
CLK
Command
NOP
READ
NOP
NOP
NOP
PRE
NOP
ACT
ACT
Address
Ba A,
Row b
Ba A,
Col n
Ba A,
Row x
A10 (AP)
Pre Bank A
Pre All
Dis AP
Row x
Row b
AP
DO n+1
DO n
DO n+2
DO n+3
DQ
AP = Auto Precharge
Dis AP = Disable Auto Precharge
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