74HC273 Datasheet, PDF (5/8 Pages) NXP Semiconductors – Octal D-type flip-flop with reset; positive-edge trigger

Philips Semiconductors
Octal D-type flip-flop with reset;
positive-edge trigger
Product specification
74HC/HCT273
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I_CC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
min.
+25
typ.
max.
74HC
−40 to +85
min. max.
−40 to +125
min. max.
UNIT _VCC WAVEFORMS
(V)
t_PHL/ t_PLH propagation delay
CP to Q_n
t_PHL
propagation delay
MR to Q_n
41 150
185
225 ns 2.0 Fig.6
15 30
37
45
4.5
13 26
31
38
6.0
44 150
185
225 ns 2.0 Fig.7
16 30
37
45
4.5
14 26
31
38
6.0
t_THL/ t_TLH output transition time
19 75
95
110 ns 2.0 Fig.6
7 15
19
22
4.5
6 13
15
19
6.0
t_W
clock pulse width
80 14
HIGH or LOW
16 5
14 4
100
120
20
24
17
20
t_W
master reset pulse width 60 17
75
90
LOW
12 6
15
18
10 5
13
15
t_rem
removal time
MR to CP
50 −6
65
75
10 −2
13
15
9 −2
11
13
t_su
set-up time
D_n to CP
60 11
12 4
10 3
75
90
15
18
13
15
t_h
hold time
D_n to CP
3 −6
3
3
3 −2
3
3
3 −2
3
3
f_max
maximum clock pulse 6.0 20.6
4.8
4.0
frequency
30 103
24
20
35 122
28
24
ns 2.0 Fig.6
4.5
6.0
ns 2.0 Fig.7
4.5
6.0
ns 2.0 Fig.7
4.5
6.0
ns 2.0 Fig.8
4.5
6.0
ns 2.0 Fig.8
4.5
6.0
MHz 2.0 Fig.6
4.5
6.0
September 1993
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