74ALVC74
Dual D-type flip-flop with set and reset; positive-edge trigger
Rev. 4 — 16 August 2017
Product data sheet
1
General description
The 74ALVC74 is a dual positive edge triggered, D-type flip-flop. It has individual data
(nD) inputs, clock (nCP) inputs, set (nSD) and (nRD) inputs, and complementary nQ and
nQ outputs.
The set and reset are asynchronous active LOW inputs that operate independently
of the clock input. Information on the data input is transferred to the nQ output on the
LOW-to-HIGH transition of the clock pulse. The nD inputs must be stable one set-up
time prior to the LOW-to-HIGH clock transition, for predictable operation. Schmitt-trigger
action in the clock input makes the circuit highly tolerant to slower clock rise and fall
times.
2
Features and benefits
•
Wide supply voltage range from 1.65 V to 3.6 V
•
Complies with JEDEC standard:
–
JESD8-7 (1.65 to 1.95 V)
–
JESD8-5 (2.3 to 2.7 V)
–
JESD8B/JESD36 (2.7 to 3.6 V)
•
3.6 V tolerant inputs/outputs
•
CMOS low power consumption
•
Direct interface with TTL levels (2.7 V to 3.6 V)
•
Power-down mode
•
Latch-up performance exceeds 250 mA
•
ESD protection:
–
HBM JESD22-A114-A exceeds 2000 V
–
MM JESD22-A115-A exceeds 200 V
•
Specified from -40 °C to +85 °C
Nexperia
Dual D-type flip-flop with set and reset; positive-edge trigger
74ALVC74
3
Ordering information
Package
Temperature range
Name
SO14
TSSOP14
DHVQFN14
Table 1. Ordering information
Type number
74ALVC74D
74ALVC74PW
74ALVC74BQ
Description
plastic small outline package; 14 leads;
body width 3.9 mm
plastic thin shrink small outline package;
14 leads; body width 4.4 mm
plastic dual in-line compatible thermal
enhanced very thin quad flat package; no leads;
14 terminals; body 2.5 x 3 x 0.85 mm
Version
SOT108-1
SOT402-1
SOT762-1
-40 °C to +85 °C
-40 °C to +85 °C
-40 °C to +85 °C
4
Functional diagram
4
4 10
1SD 2SD
2
12
1D
D
2D
SD
Q
FF
1Q
Q
2Q
6
8
1Q
2Q
5
9
S
C1
1D
R
5
3
2
1
6
3 1CP
CP
11 2CP
10
11
12
13
S
C2
2D
R
9
RD
1RD 2RD
1 13
aaa-008836
8
aaa-008837
Figure 1. Logic symbol
Figure 2. IEC logic symbol
74ALVC74
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 4 — 16 August 2017
2 / 18
Nexperia
Dual D-type flip-flop with set and reset; positive-edge trigger
74ALVC74
4
1SD
SD
D
CP
Q
FF1
Q
RD
1Q
6
2
3
1D
1CP
1Q
5
1
10
1RD
2SD
SD
D
CP
Q
FF2
Q
RD
2Q
8
12
11
2D
2CP
2Q
9
13
2RD
aaa-008838
Figure 3. Functional diagram
Q
C
C
C
D
C
RD
SD
C
C
C
Q
C
CP
C
C
aaa-008839
Figure 4. Logic diagram (one flip-flop)
74ALVC74
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 4 — 16 August 2017
3 / 18
Nexperia
Dual D-type flip-flop with set and reset; positive-edge trigger
74ALVC74
5
Pinning information
5.1 Pinning
74ALVC74
1RD
2
3
4
5
6
7
GND
2Q
8
GND
(1)
1
terminal 1
index area
1D
1CP
14 V
CC
13 2RD
12 2D
11 2CP
10 2SD
9
2Q
74ALVC74
1RD
1D
1CP
1SD
1Q
1Q
GND
1
2
3
4
5
6
7
aaa-027303
1SD
1Q
14 V
CC
13 2RD
12 2D
11 2CP
10 2SD
9
8
2Q
2Q
1RD
1D
1CP
1SD
1Q
1Q
GND
1
2
3
4
5
6
7
aaa-027304
1Q
74ALVC74
14 V
CC
13 2RD
12 2D
11 2CP
10 2SD
9
8
2Q
2Q
aaa-027305
Transparent top view
(1) This is not a supply pin. The substrate
is attached to this pad using conductive die
attach material. There is no electrical or
mechanical requirement to solder this pad.
However, if it is soldered, the solder land
should remain floating or be connected to
GND.
Figure 5. Pin configuration SO14 Figure 6. Pin configuration TSSOP14 Figure 7. Pin configuration DHVQFN14
5.2 Pin description
Table 2. Pin description
Symbol
1RD
1D
1CP
1SD
1Q
1Q
GND
2Q
2Q
2SD
2CP
2D
2RD
V
CC
74ALVC74
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
asynchronous reset-direct input (active-LOW)
data input
clock input (LOW-to-HIGH), edge-triggered
asynchronous set-direct input (active-LOW)
true flip-flop output
complement flip-flop output
ground (0 V)
complement flip-flop output
true flip-flop output
asynchronous set-direct input (active-LOW)
clock input (LOW-to-HIGH), edge-triggered
data input
asynchronous reset-direct input (active-LOW)
supply voltage
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 4 — 16 August 2017
4 / 18
Nexperia
Dual D-type flip-flop with set and reset; positive-edge trigger
74ALVC74
6
Functional description
[1]
Table 3. Function table
Input
nSD
L
H
L
H
H
[1]
Output
nRD
H
L
L
H
H
nCP
X
X
X
↑
↑
nD
X
X
X
L
H
nQ
H
L
H
-
-
nQ
L
H
H
-
-
nQ
n+1
-
-
-
L
H
nQ
n+1
-
-
-
H
L
H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
↑ = LOW-to-HIGH clock transition;
nQ
n+1
= state after the next LOW-to-HIGH CP transition
7
Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
CC
V
I
V
O
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
[3]
Conditions
[1]
[1]
Min
-0.5
-0.5
-0.5
-0.5
-50
-
-
-
-100
-65
Max
+4.6
+4.6
+4.6
-
±50
±50
100
-
+150
500
Unit
V
V
V
mA
mA
mA
mA
mA
°C
mW
supply voltage
input voltage
output voltage
Power-down mode
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
T
amb
= -40 °C to +85 °C
[3]
V
CC
+ 0.5 V
[1] [2]
V
I
< 0 V
V
O
> V
CC
or V
O
< 0 V
V
O
= 0 V to V
CC
-
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
When V
CC
= 0 V (Power-down mode), the output voltage can be 3.6 V in normal operation.
For SO14 packages: above 70 °C derate linearly with 8 mW/K.
For TSSOP14 packages: above 60 °C derate linearly with 5.5 mW/K.
For DHVQFN14 packages: above 60 °C derate linearly with 4.5 mW/K.
74ALVC74
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 4 — 16 August 2017
5 / 18