74hct5555 NXP Semiconductors, 74hct5555 Datasheet - Page 14

• Manufacturer Part Number: 74hct5555
• Description: Programmable Delay Timer With Oscillator
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
September 1993
t
t
t
t
t
t
t
t
t
R
C
t
f
f
SYMBOL
PLH
PHL
PHL
THL
W
W
W
W
rt
rem
max
max
Programmable delay timer with oscillator
EXT
EXT
/t
/t
/t
/t
PHL
PLH
PLH
TLH
r
propagation
delay A, B to
Q, Q
propagation
delay MR to Q,
Q
propagation
delay RS to Q,
Q
output
transition time
trigger pulse
width
A = HIGH
B = LOW
master reset
pulse width
HIGH
clock pulse
width RS;
HIGH or LOW
minimum
output pulse
width
Q = HIGH,
Q = LOW
retrigger time
A, B
external timing
resistor
external timing
capacitor
removal time
MR to A, B
maximum
clock pulse
frequency
maximum
clock pulse
frequency
= t
PARAMETER
f
= 6 ns; C
L
= 50 pF.
21
14
16
1
50
24
10
30
MIN
28
24
32
7
12
5
9
100
0
14
18
75
TYP
25
48
41
54
15
1000
MAX
T
amb
26
18
20
30
8
24
MIN
40 to 85
no limits
( C)
14
60
51
68
19
MAX
32
21
24
36
6.6
20
MIN
40 to 125
72
62
81
22
MAX
ns
ns
ns
ns
ns
ns
ns
ns
ns
k
pF
ns
MHz
MHz
UNIT
74HC/HCT5555
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
V
(V)
TEST CONDITION
CC
Product specification
Fig.6
Fig.7
Fig.8; note 1
Fig.6
Fig.6
Fig.7
Fig.8
Fig.6
Fig.10; note 2
Fig.13
Fig.13
Fig.7
Fig.8; note 3
Fig.9; note 4
WAVEFORMS