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74LVC1G79 Datasheet(PDF) 7 Page - NXP Semiconductors

Part # 74LVC1G79
Description  Single D-type flip-flop; positive-edge trigger
PDF  16 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

74LVC1G79 Datasheet(HTML) 7 Page - NXP Semiconductors

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74LVC1G79_7
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 07 — 29 August 2007
7 of 16
NXP Semiconductors
74LVC1G79
Single D-type flip-flop; positive-edge trigger
11. Dynamic characteristics
[1]
Typical values are measured at Tamb =25 °C and VCC = 1.8 V, 2.5 V, 2.7 V, 3.3 V and 5.0 V respectively.
[2]
tpd is the same as tPLH and tPHL.
[3]
CPD is used to determine the dynamic power dissipation (PD in µW).
PD =CPD × VCC2 × fi × N+ ∑(CL × VCC2 × fo) where:
fi = input frequency in MHz;
Table 8.
Dynamic characteristics
Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 9.
Symbol Parameter
Conditions
−40 °C to +85 °C
−40 °C to +125 °C Unit
Min
Typ[1]
Max
Min
Max
tpd
propagation delay
CP to Q; see Figure 7
[2]
VCC = 1.65 V to 1.95 V
1.0
3.6
9.9
1.0
12.5
ns
VCC = 2.3 V to 2.7 V
0.5
2.3
7.0
0.5
9.0
ns
VCC = 2.7 V
0.5
2.6
6.0
0.5
8.0
ns
VCC = 3.0 V to 3.6 V
0.5
2.2
5.0
0.5
6.5
ns
VCC = 4.5 V to 5.5 V
0.5
1.7
3.8
0.5
5.0
ns
tsu
set-up time
D to CP; see Figure 8
VCC = 1.65 V to 1.95 V
2.5
1.4
-
2.5
-
ns
VCC = 2.3 V to 2.7 V
1.7
0.9
-
1.7
-
ns
VCC = 2.7 V
1.7
0.9
-
1.7
-
ns
VCC = 3.0 V to 3.6 V
1.3
0.6
-
1.2
-
ns
VCC = 4.5 V to 5.5 V
1.2
0.6
-
1.2
-
ns
th
hold time
D to CP; see Figure 8
VCC = 1.65 V to 1.95 V
0
−0.7
-
0
-
ns
VCC = 2.3 V to 2.7 V
0
−0.4
-
0
-
ns
VCC = 2.7 V
+0.5
−0.3
-
0.5
-
ns
VCC = 3.0 V to 3.6 V
+0.5
−0.3
-
0.5
-
ns
VCC = 4.5 V to 5.5 V
+0.5
−0.2
-
0.5
-
ns
tW
pulse width
CP HIGH or LOW;
see Figure 8
VCC = 1.65 V to 1.95 V
3.0
1.1
-
3.0
-
ns
VCC = 2.3 V to 2.7 V
2.5
0.7
-
2.5
-
ns
VCC = 2.7 V
2.5
0.6
-
2.5
-
ns
VCC = 3.0 V to 3.6 V
2.5
0.6
-
2.5
-
ns
VCC = 4.5 V to 5.5 V
2.0
0.5
-
2.0
-
ns
fmax
maximum
frequency
CP; see Figure 8
VCC = 1.65 V to 1.95 V
160
250
-
160
-
MHz
VCC = 2.3 V to 2.7 V
160
300
-
160
-
MHz
VCC = 2.7 V
160
350
-
160
-
MHz
VCC = 3.0 V to 3.6 V
160
450
-
160
-
MHz
VCC = 4.5 V to 5.5 V
200
500
-
200
-
MHz
CPD
power dissipation
capacitance
VI = GND to VCC;
VCC = 3.3 V
[3]
-
17
---
pF



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