參數(shù)資料
型號(hào): MC88921DW
廠商: MOTOROLA INC
元件分類: 時(shí)鐘及定時(shí)
英文描述: LOW SKEW CMOS PLL CLOCK DRIVER With Power-Down/ Power-Up Feature
中文描述: 88921 SERIES, PLL BASED CLOCK DRIVER, 6 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20
封裝: PLASTIC, SOIC-20
文件頁(yè)數(shù): 7/10頁(yè)
文件大小: 106K
代理商: MC88921DW
MC88921
TIMING SOLUTIONS
BR1333 — REV 5
7
MOTOROLA
Figure 3. MC68040 P–Clock Input Termination Scheme
88921
2X_Q
OUTPUT
68040
P–CLOC
K
INPUT
Rs = Zo – 7
Rs
Zo (CLOCK
TRACE)
Figure 4. Logical Representation of the MC88921 With Input/Output Frequency Relationships
2X_Q
Q0
Q1
Q2
Q3
SYNC
MR
PLL_EN
16.5MHz
CRYSTAL
OSCILLATOR
66MHz P–CLOCK OUT-
PUT
33MHz
B–CLOCK
AND SYSTEM
OUTPUTS
RP
RP = 1.5Zo
Figure 5. Output/Input Switching Waveforms and Timing Relationships
SYNC Input
Q0–Q3 Outputs
2X_Q Output
tCYCLE SYNC Input
tSKEWall
tSKEWf
tSKEWr
tSKEWf
tSKEWr
Timing Notes
1. The MC88921 aligns rising edges of the outputs and the SYNC input, therefore the SYNC input does not require a 50%
duty cycle.
2. All skew specs are measured between the VCC/2 crossing point of the appropriate output edges. All skews are specified as
‘windows’, not as a
±
deviation around a center point.
相關(guān)PDF資料
PDF描述
MC88921 LOW SKEW CMOS PLL CLOCK DRIVER With Power-Down/ Power-Up Feature
MC88LV915 LOW SKEW CMOS PLL CLOCK DRIVER
MC88LV915T LOW SKEW CMOS PLL CLOCK DRIVER
MC88LV926 LOW SKEW CMOS PLL 68060 CLOCK DRIVER
MC88LV926DW LOW SKEW CMOS PLL 68060 CLOCK DRIVER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC889AL 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC889AP 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC88A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8 TUNES 8 KEY WITH SCAN KEY
MC88B/IVY 制造商:TELEPHONE EQUIPMENT 功能描述:THREE COUPLER 8P8C
MC88I TERMINAL 制造商:MC TECHNOLOGIES 功能描述:MOD GSM / GPRS QUADBAND TERMI 制造商:MC TECHNOLOGIES 功能描述:MOD, GSM / GPRS QUADBAND TERMINAL 制造商:MC TECHNOLOGIES 功能描述:MOD, GSM / GPRS QUADBAND TERMINAL; No. of Channels:4; Protocol:TCP / IP; Supply Voltage Min:8V; Supply Voltage Max:30V; Frequency RF:1.9GHz; Module Interface:RS232, USB; Kit Features:GPRS upto 86kbps, Data CSD upto 14.4kbps, Secure ;RoHS Compliant: Yes