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74HC7403 Datasheet, PDF (10/28 Pages) NXP Semiconductors – 4-Bit x 64-word FIFO register; 3-state | |||
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Philips Semiconductors
4-Bit x 64-word FIFO register; 3-state
Product speciï¬cation
74HC/HCT7403
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
TEST CONDITION
SYMBOL PARAMETER
â25
â40 to +85 â40 to +125 UNIT
MIN TYP MAX MIN MAX MIN MAX
VCC
(V)
WAVEFORMS
tPHL/tPLH propagation
â
30 51 â
53 â
63 ns 4.5
delay
MR to DIR,
DOR
tPHL
propagation
â
22 38 â
48 â
57 ns 4.5
delay
MR to Qn
tPHL/tPLH propagation
â
25 43 â
54 â
65 ns 4.5
delay
SI to DIR
tPHL/tPLH propagation
â
36 61 â
76 â
92 ns 4.5
delay
SO to DOR
tPHL/tPLH propagation
â
delay
SO to Qn
tPHL/tPLH propagation
â
delay
DOR to Qn
tPLH
propagation
â
delay/ripple
through delay
SI to DOR
42 72 â
7
12 â
0.8 1.4 â
90 â
15 â
1.75 â
108 ns 4.5
18 ns 4.5
2.1 µs 4.5
tPLH
propagation
â
1
1.8 â
2.25 â
2.7 µs 4.5
delay/bubble-up
delay
SO to DIR
tPZH/tPZL
tPHZ/tPLZ
tTHL/tTLH
3-state output â
enable time
OE to Qn
3-state output â
disable time
OE to Qn
output transition â
time
16 30 â
19 30 â
5
12 â
38 â
38 â
15 â
45 ns 4.5
45 ns 4.5
18 ns 4.5
tW
SI pulse width 9
5
â
6
â
8
â
ns 4.5
HIGH or LOW
tW
SO pulse width 14 8
â
18 â
21 â
ns 4.5
HIGH or LOW
tW
DIR pulse width 5
17 29 4
36 4
44 ns 4.5
HIGH
Fig.8
Fig.8
Fig.6
Fig.9
Fig.14
Fig.10
Fig.10
Fig.7
Fig.16
Fig.16
Fig.16
Fig.6
Fig.9
Fig.7
September 1993
10
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