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EDB8164B4PR-1DITF-R 데이터시트(PDF) 121 Page - Micron Technology

부품명 EDB8164B4PR-1DITF-R
상세설명  216-Ball and 220-Ball, Dual-Channel LPDDR2 SDRAM Features
PDF  152 Pages
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제조업체  MICRON [Micron Technology]
홈페이지  http://www.micron.com
Logo MICRON - Micron Technology

EDB8164B4PR-1DITF-R 데이터시트(HTML) 121 Page - Micron Technology

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Figure 79: HSUL_12 Driver Output Reference Load for Timing and Slew Rate
LPDDR2
V
REF
0.5 × V
DDQ
Output
C
LOAD = 5pF
V
TT = 0.5 × VDDQ
50
Ω
Note:
1. All output timing parameter values (tDQSCK, tDQSQ, tQHS, tHZ, tRPRE etc.) are reported
with respect to this reference load. This reference load is also used to report slew rate.
Output Driver Impedance
Output driver impedance is selected by a mode register during initialization. To achieve
tighter tolerances, ZQ calibration is required. Output specifications refer to the default
output drive unless specifically stated otherwise. The output driver impedance RON is
defined by the value of the external reference resistor RZQ as follows:
RONPU =
VDDQ - VOUT
ABS(IOUT)
When RONPD is turned off.
RONPD =
VOUT
When RONPU is turned off.
ABS(IOUT)
216-Ball and 220-Ball, Dual-Channel LPDDR2 SDRAM
Output Driver Impedance
09005aef85eb530a
216b_220b_2ch_2e0e_embedded_lpddr2.pdf – Rev. F 08 /16 EN
121
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.



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