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전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크

MC74HC299N 데이터 시트보기 (PDF) - Motorola => Freescale

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MC74HC299N Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
MC74HC299
SWITCHING WAVEFORMS
CLOCK
QA, QH,
QA–QH
tr
tf
90%
50%
10%
tw
1/fmax
tPLH
tPHL
90%
50%
10%
tTLH
tTHL
Figure 1.
tw
VCC
VCC
RESET
50%
GND
GND
tPHL
QA, QH,
QA–QH
CLOCK
50%
trec
VCC
50%
GND
Figure 2.
OE1 OR OE2
QA–QH
50%
tPZL tPLZ
50%
tPZH tPHZ
50%
Figure 3a.
VCC
GND
HIGH
IMPEDANCE
10% VOL
90% VOH
HIGH
IMPEDANCE
S1 OR S2
S2 OR S1
QA–QH
50%
tPZL tPLZ
50%
tPZH tPHZ
50%
Figure 3b.
VCC
GND
VCC
GND
HIGH
IMPEDANCE
10% VOL
90% VOH
HIGH
IMPEDANCE
MODE SELECT
OR DATA
CLOCK
VALID
50%
tsu
th
50%
Figure 4.
DEVICE
UNDER
TEST
VCC
GND
VCC
GND
TEST POINT
OUTPUT
1 k
CL*
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
* Includes all probe and jig capacitance
Figure 5. Test Circuit
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
* Includes all probe and jig capacitance
Figure 6. Test Circuit
MOTOROLA
3–6
High–Speed CMOS Logic Data
DL129 — Rev 6

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