收藏本站
2Gb: x16, x32 Mobile LPDDR2 SDRAM S4
AC and DC Logic Input Measurement Levels for Differential
Signals
AC and DC Logic Input Measurement Levels for Differential Signals
Figure 85: Differential AC Swing Time and t DVAC
t DVAC
V IH,diff(AC)min
V IH,diff(DC)min
CK, CK#
0.0
V IH,diff(DC)max
1/2 cycle
DQS, DQS#
t DVAC
V IH,diff(AC)max
Time
Table 66: Differential AC and DC Input Levels
For CK and CK#, V REF = V REFCA(DC) ; For DQS and DQS# V REF = V REFDQ(DC)
LPDDR2-1066 to LPDDR2-466
LPDDR2-400 to LPDDR2-200
Symbol
Parameter
Min
Max
Min
Max
Unit Notes
V IH,diff(AC)
Differential input
2 × (V IH(AC) - V REF )
Note 1
2 × (V IH(AC) - V REF )
Note 1
V
2
HIGH AC
V IL,diff(AC)
Differential input
Note 1
2 × (V REF - V IL(AC) )
Note 1
2 × (V REF - V IL(AC) )
V
2
LOW AC
V IH,diff(DC)
Differential input
2 × (V IH(DC) - V REF )
Note 1
2 × (V IH(DC) - V REF )
Note 1
V
3
HIGH
V IL,diff(DC)
Differential input
Note 1
2 × (V REF - V IL(DC) )
Note 1
2 × (V REF - V IL(DC) )
V
3
LOW
Notes:
1. These values are not defined, however the single-ended signals CK, CK#, DQS, and DQS#
must be within the respective limits (V IH(DC)max , V IL(DC)min ) for single-ended signals and
must comply with the specified limitations for overshoot and undershoot (see Figure 91
(page 130)).
PDF: 09005aef83f3f2eb
2gb_mobile_lpddr2_s4_g69a.pdf – Rev. N 3/12 EN
123
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2010 Micron Technology, Inc. All rights reserved.
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MT45W1MW16BDGB-708 AT IC PSRAM 16MBIT 104MHZ 54VFBGA
MT48H32M16LFB4-75B IT:C IC SDRAM 512MB 54VFBGA
MT48H8M16LFB4-75 IT:K TR IC SDRAM 128MBIT 133MHZ 54VFBGA
MTC100-JA2-P34 CONTACT INSERT PIN
MX841BE IC CONVERTER WHITE LED 8-SOIC
MXHV9910BTR IC LED DRIVER HIGH BRIGHT 8-SOIC
MXN12FB12F MOTOR BRUSHED DC 12V 2922RPM
MXN13FB08B1 MOTOR BRUSHED DC 8V 4714RPM
相关代理商/技术参数
MT42L256M32D4KP-MS 制造商:Micron Technology Inc 功能描述:256MX32 LPDDR2 PLASTIC IND TEMP GREEN WFBGA 1.2V - Bulk