參數(shù)資料
型號: SSTUB32868ET/S
廠商: NXP SEMICONDUCTORS
元件分類: 鎖存器
英文描述: 32868 SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PBGA176
封裝: 6 X 15 MM, 0.70 MM PITCH, LEAD FREE, PLASTIC, MO-246, SOT932-1, TFBGA-176
文件頁數(shù): 5/30頁
文件大?。?/td> 254K
代理商: SSTUB32868ET/S
SSTUB32868_4
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 04 — 22 April 2010
13 of 30
NXP Semiconductors
SSTUB32868
1.8 V DDR2-800 configurable registered buffer with parity
7.3 Register timing
(1) After RESET is switched from LOW to HIGH, all data and PAR_IN input signals must be set and held LOW for a minimum time
of tACT(max) to avoid false error.
(2) If the data is clocked on the m clock pulse, and PAR_IN is clocked in at m + 1, the QERR output signal will be produced on the
m + 2 clock pulse and it will be valid on the m + 3 clock pulse.
Fig 6.
Timing diagram during start-up (RESET switches from LOW to HIGH)
CK
Dn, DODTn,
DCKEn(1)
Qn, QODTn,
QCKEn
tsu
002aab899
CK
m
m + 1
m + 2
m + 3
m + 4
DCSn
RESET
tACT
th
tPDM, tPDMSS
CK to Q
PAR_IN(1)
tsu
th
tPHL, tPLH
CK to QERR
tPHL
CK to QERR
QERR(2)
HIGH, LOW, or Don't care
HIGH or LOW
CSGEN
data to QERR latency
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