74AHCT1G79GW Ver la hoja de datos (PDF) - Philips Electronics
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componentes Descripción
Fabricante
74AHCT1G79GW Datasheet PDF : 12 Pages
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Philips Semiconductors
Single D-type flip-flop; positive-edge trigger
Product specification
74AHC1G79;
74AHCT1G79
AC CHARACTERISTICS
Type 74AHC1G79
GND = 0 V; tr = tf ≤ 3.0 ns.
TEST CONDITIONS
Tamb (°C)
SYMBOL PARAMETER
WAVEFORMS
tPHL/tPLH propagation delay see Figs 5 and 6
CP to Q
tsu
set-up time D to CP
th
hold time D to CP
tW
clock pulse width
HIGH or LOW
fmax
maximum clock
pulse frequency
CL VCC (V)
15 pF 3.0 to 3.6
50 pF 3.0 to 3.6
15 pF 4.5 to 5.5
50 pF 4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
25
MIN. TYP.
−
4.9(1)
−
6.9(1)
−
3.5(2)
−
5.1(2)
3.0 1.0
+2.0 −1.0
3.0 −
MAX.
8.4
12.0
5.6
8.0
−
−
−
−40 to +85
MIN. MAX.
1.0 9.8
1.0 14.0
1.0 7.0
1.0 10.0
3.0 −
0−
3.0 −
UNIT
ns
ns
ns
ns
ns
ns
ns
4.5 to 5.5 90 −
−
90 −
MHz
Notes
1. Typical values at VCC = 3.3 V.
2. Typical values at VCC = 5.0 V.
Type 74AHCT1G79
GND = 0 V; tr = tf ≤ 3.0 ns.
TEST CONDITIONS
Tamb (°C)
SYMBOL PARAMETER
25
−40 to +85 UNIT
WAVEFORMS CL VCC (V)
MIN. TYP. MAX. MIN. MAX.
tPHL/tPLH propagation delay see Figs 5 and 6 15 pF 4.5 to 5.5 −
CP to Q
50 pF 4.5 to 5.5 −
3.5(1) 5.0
5.0(1) 8.0
tsu
set-up time D to CP
th
hold time D to CP
tW
clock pulse width
HIGH or LOW
4.5 to 5.5 3.0 1.0
−
4.5 to 5.5 +2.0 −1.0 −
4.5 to 5.5 3.0 −
−
fmax
maximum clock
pulse frequency
4.5 to 5.5 90 −
−
1.0 6.0 ns
1.0 10.0 ns
3.0 −
ns
0−
ns
3.0 −
ns
90 −
MHz
Note
1. Typical values at VCC = 5.0 V.
1999 May 18
7
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