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74HC5555 View Datasheet(PDF) - NXP Semiconductors.

Part NameDescriptionManufacturer
74HC5555 Programmable delay timer with oscillator NXP
NXP Semiconductors. NXP
74HC5555 Datasheet PDF : 23 Pages
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Philips Semiconductors
Programmable delay timer with oscillator
Product specification
74HC/HCT5555
Tamb (°C)
TEST CONDITION
SYMBOL PARAMETER
+25
40 to +85 40 to +125 UNIT
MIN TYP MAX MIN MAX MIN MAX
VCC
(V)
WAVEFORMS
fmax
maximum
2
5.9
1.8
1.3
MHz 2.0
Fig.8; note 3
clock pulse
10 18
8
6.6
MHz 4.5
frequency
12 21
10
8
MHz 6.0
fmax
maximum
6
24.8
4.8
4
MHz 2.0
Fig.9; note 4
clock pulse
30 75
24
20
MHz 4.5
frequency
35 89
28
24
MHz 6.0
Notes
1. One stage selected.
2. It is possible to retrigger directly after the trigger pulse, however the pulse will only be extended, if the time period
exceeds the clock input cycle time divided by 2.
3. One stage selected. The termination of the output pulse remains synchronized with respect to the falling edge of the
RS clock input.
4. One stage selected. The termination of the output pulse is no longer synchronized with respect to the falling edge of
the RS clock input.
September 1993
11
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