MC74HCT273A Datasheet, PDF (4/8 Pages) Motorola, Inc – Octal D Flip-Flop with Common Clock and Reset with LSTTL-Compatible Inputs

MC74HCT273A
SWITCHING WAVEFORMS
tr
tf
tw
CLOCK
2.7 V
1.3 V
0.3 V
3.0 V
RESET
1.3 V
GND
3.0 V
GND
tw
tPHL
90%
Q 1.3 V
10%
1/fmax
tPLH
tPHL
Q
CLOCK
1.3 V
trec
3.0 V
1.3 V
tTLH
tTHL
GND
Figure 1.
Figure 2.
VALID
3.0 V
DATA
1.3 V
GND
tsu
th
3.0 V
CLOCK
1.3 V
GND
Figure 3.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 4. Test Circuit
EXPANDED LOGIC DIAGRAM
D0 ³
D1 ⁴
D2 ⁷
DATA
INPUTS
D3 ⁸
D4 ¹³
D5 ¹⁴
D6 ¹⁷
D7 ¹⁸
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
C
Q
DR
2 _Q0
5 _Q1
6 _Q2
9 _Q3
12 _Q4
NONINVERTING
OUTPUTS
15 _Q5
16 _Q6
19
Q7
CLOCK ¹¹
RESET ¹
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