參數(shù)資料
型號(hào)： HYS72D64020GU-8-B
廠商： INFINEON TECHNOLOGIES AG
英文描述： 184-Pin Unbuffered Dual-In-Line Memory Modules
中文描述： 184引腳緩沖雙列內(nèi)存模組
文件頁(yè)數(shù)： 28/51頁(yè)
文件大?。?/td> 1356K
代理商： HYS72D64020GU-8-B
HYS[64/72]D[16x01/32x00/64x20][G/E]U-[5/6/7/8]-B
Unbuffered DDR SDRAM Modules
Electrical Characteristics
Data Sheet
28
V1.1, 2003-07
7)
t
HZ
and
t
LZ
transitions occur in the same access time windows as valid data transitions. These parameters are not referred
to a specific voltage level, but specify when the device is no longer driving (HZ), or begins driving (LZ).
8) The specific requirement is that DQS be valid (HIGH, LOW, or some point on a valid transition) on or before this CK edge.
A valid transition is defined as monotonic and meeting the input slew rate specifications of the device. When no writes were
previously in progress on the bus, DQS will be transitioning from Hi-Z to logic LOW. If a previous write was in progress,
DQS could be HIGH, LOW, or transitioning from HIGH to LOW at this time, depending on
t
DQSS
.
9) The maximum limit for this parameter is not a device limit. The device operates with a greater value for this parameter, but
system performance (bus turnaround) degrades accordingly.
10) Fast slew rate
≥
1.0 V/ns , slow slew rate
≥
0.5 V/ns and < 1 V/ns for command/address and CK & CK slew rate > 1.0 V/ns,
measured between
V
OH(ac)
and
V
OL(ac)
.
11) For each of the terms, if not already an integer, round to the next highest integer.
t
CK
is equal to the actual system clock
cycle time.
12) A maximum of eight Autorefresh commands can be posted to any given DDR SDRAM device.
相關(guān)PDF資料
PDF描述
HYS64D16301GU-6-B 184-Pin Unbuffered Dual-In-Line Memory Modules
HYS72D32101GR-8-A Low Profile DDR SDRAM-Modules
HYS72D16500GR-7-A Low Profile DDR SDRAM-Modules
HYS72D16500GR Low Profile DDR SDRAM-Modules
HYS72D32501GR-7-A Low Profile DDR SDRAM-Modules
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HYS72D64300 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:184-Pin Registered Double Data Rate SDRAM Module
HYS72D64300GBR-5-B 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:184 - Pin Registered Double Data Rate SDRAM Modules
HYS72D64300GBR-5-C 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:184-Pin Registered Double Data Rate SDRAM Module
HYS72D64300GBR-6-B 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:184 - Pin Registered Double Data Rate SDRAM Modules
HYS72D64300GBR-6-C 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:184-Pin Registered Double Data Rate SDRAM Module
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