參數(shù)資料
型號: SSTE32882HLBAKG
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時鐘及定時
英文描述: SSTE SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PBGA176
封裝: 8 X 13.50 MM, 0.65 MM PITCH, GREEN, MO-246F, CABGA-176
文件頁數(shù): 58/69頁
文件大小: 1263K
代理商: SSTE32882HLBAKG
1.25V/1.35V/1.5V REGISTERING CLOCK DRIVER WITH PARITY TEST AND QUAD CHIP SELECT
61
SSTE32882KA1
7314/5
CONFIDENTIAL - THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE
SSTE32882KA1
1.25V/1.35V/1.5V REGISTERING CLOCK DRIVER WITH PARITY TEST AND QUAD CHIP SELECT
COMMERCIAL TEMPERATURE RANGE
Voltage waveforms address floating
Refer to “Calculating the virtual VREF crossing point”.
Enabling and disabling the CA outputs must not violate DRAM setup and hold time requirements. Therefore a tDIS
transition may not occure earlier than a regular (HL/LH) transition and a tEN transition may not occure later than a
regular (HL/LH) transition. Regular transitions are measured between CK/CK and CA/VTT crossings however a VTT
crossing is not available in the state where the outputs are Hi-Z. To allow a correct and not overly conservative
measurement a virtual VTT crossing point is defined below. The calculation of the virtual VTT crossing point is
shown in the Figure, “Calculating the virtual VTT crossing point”. The voltage levels for yxa and yxb are measured
from VTT (VDD/2) and should be selected such that the region between t1 and t2 covers a linear range and
represents a typical slope of the waveform within the transition area. They have to be used signed in the formula.
Outputs
Yn
tDIS
tEN
VOX
VOD
CK
DCSn
QxCSn
virtual VTT crossing*
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