74AHC1G79; 74AHCT1G79
Single D-type flip-flop; positive-edge trigger
Rev. 05 — 2 July 2007
Product data sheet
1. General description
74AHC1G79 and 74AHCT1G79 are high-speed Si-gate CMOS devices. They provide a
single positive-edge triggered D-type flip-flop.
Information on the data input is transferred to the Q output on the LOW-to-HIGH transition
of the clock pulse. The D input must be stable one set-up time prior to the LOW-to-HIGH
clock transition for predictable operation.
The AHC device has CMOS input switching levels and supply voltage range 2 V to 5.5 V.
The AHCT device has TTL input switching levels and supply voltage range 4.5 V to 5.5 V.
2. Features
I
I
I
I
I
I
Symmetrical output impedance
High noise immunity
Low power dissipation
Balanced propagation delays
SOT353-1 and SOT753 package options
ESD protection:
N
HBM JESD22-A114E: exceeds 2000 V
N
MM JESD22-A115-A: exceeds 200 V
N
CDM JESD22-C101C: exceeds 1000 V
I
Specified from
−40 °C
to +125
°C
3. Ordering information
Table 1.
Ordering information
Package
Temperature range Name
74AHC1G79GW
74AHCT1G79GW
74AHC1G79GV
74AHCT1G79GV
−40 °C
to +125
°C
SC-74A
−40 °C
to +125
°C
TSSOP5
Description
plastic thin shrink small outline package; 5 leads;
body width 1.25 mm
plastic surface-mounted package; 5 leads
Version
SOT353-1
SOT753
Type number
NXP Semiconductors
74AHC1G79; 74AHCT1G79
Single D-type flip-flop; positive-edge trigger
4. Marking
Table 2.
Marking codes
Marking
AP
A79
CP
C79
Type number
74AHC1G79GW
74AHC1G79GV
74AHCT1G79GW
74AHCT1G79GV
5. Functional diagram
1
D
Q
4
1
4
D
CP
mna441
2
CP
mna440
2
Fig 1. Logic symbol
Fig 2. IEC logic symbol
CP
C
C
C
C
D
TG
C
TG
C
Q
C
C
TG
TG
C
C
mna442
Fig 3. Logic diagram
74AHC_AHCT1G79_5
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 05 — 2 July 2007
2 of 12
NXP Semiconductors
74AHC1G79; 74AHCT1G79
Single D-type flip-flop; positive-edge trigger
6. Pinning information
6.1 Pinning
74AHC1G79
74AHCT1G79
D
CP
1
2
5
V
CC
GND
3
001aaf091
4
Q
Fig 4. Pin configuration
6.2 Pin description
Table 3.
Symbol
D
CP
GND
Q
V
CC
Pin description
Pin
1
2
3
4
5
Description
data input
clock pulse input
ground (0 V)
data output
supply voltage
7. Functional description
Table 4.
Inputs
CP
↑
↑
L
[1]
H = HIGH voltage level;
L = LOW voltage level;
↑
= LOW-to-HIGH CP transition;
X = don’t care;
Q + 1 = state after the next LOW-to-HIGH CP transition.
Function table
[1]
Output
D
L
H
X
Q+1
L
H
Q
74AHC_AHCT1G79_5
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 05 — 2 July 2007
3 of 12
NXP Semiconductors
74AHC1G79; 74AHCT1G79
Single D-type flip-flop; positive-edge trigger
8. Limiting values
Table 5.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
V
I
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
Parameter
supply voltage
input voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
Conditions
Min
−0.5
−0.5
Max
+7.0
+7.0
-
±20
±25
75
-
+150
250
Unit
V
V
mA
mA
mA
mA
mA
°C
mW
V
I
<
−0.5
V
V
O
<
−0.5
V or V
O
> V
CC
+ 0.5 V
−0.5
V < V
O
< V
CC
+ 0.5 V
[1]
−20
-
-
-
−75
−65
T
amb
=
−40 °C
to +125
°C
[2]
-
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For both TSSOP5 and SC-74A packages: above 87.5
°C
the value of P
tot
derates linearly with 4.0 mW/K.
9. Recommended operating conditions
Table 6.
Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
CC
V
I
V
O
T
amb
∆t/∆V
supply voltage
input voltage
output voltage
ambient temperature
input transition rise
and fall rate
V
CC
= 3.3 V
±
0.3 V
V
CC
= 5.0 V
±
0.5 V
Conditions
Min
2.0
0
0
−40
-
-
74AHC1G79
Typ
5.0
-
-
+25
-
-
Max
5.5
5.5
V
CC
+125
100
20
4.5
0
0
−40
-
-
74AHCT1G79
Min
Typ
5.0
-
-
+25
-
-
Max
5.5
5.5
V
CC
+125
-
20
V
V
V
°C
ns/V
ns/V
Unit
10. Static characteristics
Table 7.
Static characteristics
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
For type 74AHC1G79
V
IH
HIGH-level
input voltage
V
CC
= 2.0 V
V
CC
= 3.0 V
V
CC
= 5.5 V
V
IL
LOW-level
input voltage
V
CC
= 2.0 V
V
CC
= 3.0 V
V
CC
= 5.5 V
1.5
2.1
3.85
-
-
-
-
-
-
-
-
-
-
-
-
0.5
0.9
1.65
1.5
2.1
3.85
-
-
-
-
-
-
0.5
0.9
1.65
1.5
2.1
3.85
-
-
-
-
-
-
0.5
0.9
1.65
V
V
V
V
V
V
Conditions
Min
25
°C
Typ
Max
−40 °C
to +85
°C −40 °C
to +125
°C
Unit
Min
Max
Min
Max
74AHC_AHCT1G79_5
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 05 — 2 July 2007
4 of 12
NXP Semiconductors
74AHC1G79; 74AHCT1G79
Single D-type flip-flop; positive-edge trigger
Table 7.
Static characteristics
…continued
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
OH
Conditions
Min
HIGH-level
V
I
= V
IH
or V
IL
output voltage
I
O
=
−50 µA;
V
CC
= 2.0 V
I
O
=
−50 µA;
V
CC
= 3.0 V
I
O
=
−50 µA;
V
CC
= 4.5 V
I
O
=
−4.0
mA; V
CC
= 3.0 V
I
O
=
−8.0
mA; V
CC
= 4.5 V
V
OL
LOW-level
V
I
= V
IH
or V
IL
output voltage
I
O
= 50
µA;
V
CC
= 2.0 V
I
O
= 50
µA;
V
CC
= 3.0 V
I
O
= 50
µA;
V
CC
= 4.5 V
I
O
= 4.0 mA; V
CC
= 3.0 V
I
O
= 8.0 mA; V
CC
= 4.5 V
I
I
I
CC
C
I
input leakage
current
V
I
= 5.5 V or GND;
V
CC
= 0 V to 5.5 V
1.9
2.9
4.4
2.58
3.94
-
-
-
-
-
-
-
-
25
°C
Typ
2.0
3.0
4.5
-
-
0
0
0
-
-
-
-
1.5
Max
-
-
-
-
-
0.1
0.1
0.1
0.36
0.36
0.1
1.0
10
−40 °C
to +85
°C −40 °C
to +125
°C
Unit
Min
1.9
2.9
4.4
2.48
3.8
-
-
-
-
-
-
-
-
Max
-
-
-
-
-
0.1
0.1
0.1
0.44
0.44
1.0
10
10
Min
1.9
2.9
4.4
2.40
3.70
-
-
-
-
-
-
-
-
Max
-
-
-
-
-
0.1
0.1
0.1
0.55
0.55
2.0
40
10
V
V
V
V
V
V
V
V
V
V
µA
µA
pF
supply current V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
input
capacitance
HIGH-level
input voltage
LOW-level
input voltage
V
CC
= 4.5 V to 5.5 V
V
CC
= 4.5 V to 5.5 V
For type 74AHCT1G79
V
IH
V
IL
V
OH
2.0
-
-
-
-
0.8
2.0
-
-
0.8
2.0
-
-
0.8
V
V
HIGH-level
V
I
= V
IH
or V
IL
; V
CC
= 4.5 V
output voltage
I
O
=
−50 µA
I
O
=
−8.0
mA
LOW-level
V
I
= V
IH
or V
IL
; V
CC
= 4.5 V
output voltage
I
O
= 50
µA
I
O
= 8.0 mA
input leakage
current
V
I
= 5.5 V or GND;
V
CC
= 0 V to 5.5 V
4.4
3.94
-
-
-
-
-
4.5
-
0
-
-
-
-
-
-
0.1
0.36
0.1
1.0
1.35
4.4
3.8
-
-
-
-
-
-
-
0.1
0.44
1.0
10
1.5
4.4
3.70
-
-
-
-
-
-
-
0.1
0.55
2.0
40
1.5
V
V
V
V
µA
µA
mA
V
OL
I
I
I
CC
∆I
CC
supply current V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
additional
per input pin; V
I
= 3.4 V;
supply current other inputs at V
CC
or GND;
I
O
= 0 A; V
CC
= 5.5 V
input
capacitance
C
I
-
1.5
10
-
10
-
10
pF
74AHC_AHCT1G79_5
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 05 — 2 July 2007
5 of 12
模拟与混合信号
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
