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| 型號： | HYB18L128160BC-7.5 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | BJAWBMSpecialty DRAMs Mobile-RAM |
| 中文描述： | BJAWBMSpecialty DRAM的移動RAM |
| 文件頁數(shù)： | 17/53頁 |
| 文件大?。?/td> | 1328K |
| 代理商： | HYB18L128160BC-7.5 |
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HY[B/E]18L128160B[C/F]-7.5
128-Mbit Mobile-RAM
Functional Description
Data Sheet
17
V1.4, 2004-04-30
2.4
Commands
Address (A0 - A11, BA0, BA1), write data (DQ0 - DQ15) and command inputs (CKE, CS, RAS, CAS, WE, DQM)
are all registered on the positive edge of CLK.
Figure 5
shows the basic timing parameters, which apply to all
commands and operations.
Figure 5
Address / Command Inputs Timing Parameters
Table 6
Command
NOP
Command Overview
CS RAS CAS WE DQM
H
X
X
L
H
H
L
L
H
L
H
L
L
H
L
L
H
H
Address
X
X
Bank / Row
Bank / Col
Bank / Col
X
Notes
1)
DESELECT
NO OPERATION
ACTIVE (Select bank and row)
READ (Select bank and column and start read burst)
WRITE (Select bank and column and start write burst)
BURST TERMINATE or
DEEP POWER DOWN
PRECHARGE (Deactivate row in bank or banks)
AUTO REFRESH or
SELF REFRESH (enter self refresh mode)
MODE REGISTER SET
Data Write / Output Enable
Write Mask / Output Disable (High-Z)
X
H
H
H
L
L
X
X
X
1) DESELECT and NOP are functionally interchangeable.
2) BA0, BA1 provide bank address, and A0 - A11 provide row address.
3) BA0, BA1 provide bank address, A0 - A8
provide column address; A10 HIGH enables the Auto Precharge feature
(nonpersistent), A10 LOW disables the Auto Precharge feature.
4) This command is BURST TERMINATE if CKE is HIGH, DEEP POWER DOWN if CKE is LOW. The BURST TERMINATE
command is defined for READ or WRITE bursts with Auto Precharge disabled only.
5) A10 LOW:
BA0, BA1
determine which bank is precharged.
A10 HIGH: all banks are precharged and
BA0, BA1
are “Don’t Care”.
6) This command is AUTO REFRESH if CKE is HIGH, SELF REFRESH if CKE is LOW.
7) Internal refresh counter controls row and bank addressing; all inputs and I/Os are “Don’t Care” except for CKE.
8) BA0, BA1 select either the Mode Register (BA0 = 0, BA1 = 0) or the Extended Mode Register (BA0 = 0, BA1 = 1); other
combinations of BA0, BA1 are reserved; A0 - A11 provide the op-code to be written to the selected mode register.
9) DQM LOW: data present on DQs is written to memory during write cycles; DQ output buffers are enabled during read
cycles;
DQM HIGH: data present on DQs are masked and thus not written to memory during write cycles; DQ output buffers are
placed in High-Z state (two clocks latency) during read cycles.
1)
ACT
RD
WR
BST
2)
L/H
L/H
X
3)
3)
4)
PRE
ARF
L
L
L
L
H
L
L
H
X
X
Code
X
5)
6)7)
MRS
–
–
L
–
–
L
–
–
L
–
–
L
–
–
X
L
H
Op-Code
–
–
8)
9)
9)
= Don't Care
t
CL
t
CH
t
IS
t
IH
t
CK
CLK
Input *)
Valid
Valid
Valid
*) = A0 - A11, BA0, BA1, CS, CKE, RAS, CAS, WE
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| HYB18L128160BF | 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:DRAMs for Mobile Applications 128-Mbit Mobile-RAM |
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| HYB18L256160BC-7.5 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:BJAWBMSpecialty DRAMs Mobile-RAM |
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