RD74LVC374B
Octal D-type Flip Flops with 3-state Outputs
REJ03D0382–0100
Rev.1.00
Nov. 26, 2004
Description
The RD74LVC374B has eight edge trigger D type flip flops with three state outputs in a 20 pin package. Data at the D
inputs meeting set up requirements are transferred to the Q outputs on positive going transitions of the clock input.
When the clock input goes low, data at the D inputs will be retained at the outputs until clock input returns high again.
When a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of
what signals are present at the other inputs and the state of the storage elements. Low voltage and high-speed operation
is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a
battery for long time operation.
Features
•
•
•
•
•
•
V
CC
= 1.65 V to 5.5 V
All inputs V
IH
(Max.) = 5.5 V (@V
CC
= 0 V to 5.5 V)
All outputs V
OUT
(Max.) = 5.5 V (@V
CC
= 0 V or output off state)
Typical V
OL
ground bounce < 0.8 V (@V
CC
= 3.3 V, Ta = 25 °C)
Typical V
OH
undershoot > 2.0 V (@V
CC
= 3.3 V, Ta = 25°C)
High output current ±4 mA (@V
CC
= 1.65 V)
±8 mA (@V
CC
= 2.3 V)
±12 mA (@V
CC
= 2.7 V)
±24 mA (@V
CC
= 3.0 V to 5.5 V)
•
Ordering Information
Part Name
RD74LVC374BFPEL
RD74LVC374BTELL
Package Type
SOP–20 pin (JEITA)
TSSOP–20 pin
Package Code
FP–20DAV
TTP–20DAV
FP
T
Package
Abbreviation
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
ELL (2,000 pcs/reel)
Function Table
Inputs
G
H
L
L
L
H:
L:
X:
Z:
↑
:
Q
0
:
High level
Low level
Immaterial
High impedance
Low to high transition
Level of Q before the indicated steady input conditions were established.
X
↑
↑
L
CK
X
L
H
X
D
Z
L
H
Q
0
Output Q
Rev.1.00 Nov. 26, 2004 page 1 of 8
RD74LVC374B
Pin Arrangement
G 1
1Q 2
1D 3
2D 4
2Q 5
3Q 6
3D 7
4D 8
4Q 9
GND 10
G Q
CK D
G Q
CK D
20 V
CC
19 8Q
18 8D
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 CK
CK D
G Q
CK D
G Q
G Q
CK D
G Q
CK D
CK D
G Q
CK D
G Q
(Top view)
Absolute Maximum Ratings
Item
Supply voltage
Input diode current
Input voltage
Output diode current
Output voltage
Output current
V
CC
, GND current / pin
Storage temperature
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
or I
GND
Tstg
Symbol
–50
–0.5 to 7.0
–50
50
–0.5 to V
CC
+0.5
–0.5 to 7.0
±50
100
–65 to +150
mA
mA
°C
V
Ratings
–0.5 to 7.0
V
mA
V
mA
V
O
= –0.5 V
V
O
= V
CC
+0.5 V
Output "H" or "L"
Output "Z" or V
CC
:OFF
V
I
= –0.5 V
Unit
Conditions
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of
which may be realized at the same time.
Rev.1.00 Nov. 26, 2004 page 2 of 8
RD74LVC374B
Recommended Operating Conditions
Item
Supply voltage
Input / output voltage
Symbol
V
CC
V
I
V
O
Operating temperature
Output current
Ta
I
OH
Ratings
1.5 to 5.5
1.65 to 5.5
0 to 5.5
0 to V
CC
0 to 5.5
–40 to 85
–4
–8
–12
–24
I
OL
4
8
12
24
Input rise / fall time
*1
Unit
V
V
Data hold
At operation
G,
CK, D
Conditions
Output "H" or "L"
Output "Z" or V
CC
:OFF
°C
mA
V
CC
= 1.65 V
V
CC
= 2.3 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
mA
V
CC
= 1.65 V
V
CC
= 2.3 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
ns/V
V
CC
= 1.65 V to 2.7 V
V
CC
= 3.0 V to 5.5 V
t
r
, t
f
20
10
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Rev.1.00 Nov. 26, 2004 page 3 of 8
RD74LVC374B
Electrical Characteristics
Ta = –40 to 85°C
Item
Input voltage
Symbol
V
IH
V
CC
(V)
1.65 to 1.95
2.3 to 2.7
2.7 to 3.6
4.5 to 5.5
V
IL
1.65 to 1.95
2.3 to 2.7
2.7 to 3.6
4.5 to 5.5
Output voltage
V
OH
1.65 to 5.5
1.65
2.3
2.7
3.0
3.0
4.5
V
OL
1.65 to 5.5
1.65
2.3
2.7
3.0
4.5
Input current
Output leak current
I
IN
I
OFF
0 to 5.5
0
2.7 to 5.5
2.7 to 3.6
2.7 to 5.5
∆I
CC
2.7 to 3.6
1.7
2.0
V
CC
×0.7
—
—
—
—
V
CC
–0.2
1.2
1.7
2.2
2.4
2.2
3.8
—
—
—
—
—
—
—
—
—
—
—
—
Min
V
CC
×0.65
—
—
—
—
V
CC
×0.35
0.7
0.8
V
CC
×0.3
—
—
—
—
—
—
—
0.2
0.45
0.7
0.4
0.55
0.55
±5.0
±5.0
±5.0
±5.0
5.0
500
µA
µA
µA
µA
µA
µA
V
IN
= 5.5 V or GND
V
IN
/ V
OUT
= 5.5 V
V
IN
= V
CC
or GND
V
OUT
= 5.5 V or GND
V
IN
= 3.6 to 5.5 V
V
IN
= V
CC
or GND
V
IN
= one input at(V
CC
–0.6)V,
other inputs at V
CC
or GND
I
OL
= 100
µA
I
OL
= 4 mA
I
OL
= 8 mA
I
OL
= 12 mA
I
OL
= 24 mA
I
OH
= –24 mA
V
I
OH
= –100
µA
I
OH
= –4 mA
I
OH
= –8 mA
I
OH
= –12 mA
Max
V
Unit
Test Conditions
Off state output current I
OZ
Quiescent supply
current
I
CC
Rev.1.00 Nov. 26, 2004 page 4 of 8
RD74LVC374B
Switching Characteristics
Ta = –40 to 85°C
Item
Maximum clock
frequency
Symbol
f
max
V
CC
(V)
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Propagation delay time
t
PLH
t
PHL
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Output enable time
t
ZH
t
ZL
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Output disable time
t
HZ
t
LZ
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Setup time
t
su
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Hold time
t
h
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Pulse width
t
w
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Between output
*1
pins skew
t
OSLH
t
OSHL
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
Input capacitance
Output capacitance
Note:
C
IN
C
O
3.3
3.3
—
—
—
—
—
1.0
1.0
1.0
2.2
1.0
1.0
1.0
1.0
1.5
1.0
1.0
1.0
1.0
1.7
1.0
6.0
4.0
2.0
2.0
2.0
4.0
2.0
1.5
1.5
1.5
9.0
4.0
3.3
3.3
3.3
—
—
—
—
—
—
—
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4.0
8.0
Typ
Max
55.0
95.0
150.0
150.0
150.0
21.6
10.5
8.0
7.0
5.5
19.5
10.5
8.5
7.5
5.5
18.8
7.8
7.0
6.4
5.4
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1.0
1.0
—
—
pF
pF
ns
ns
ns
ns
ns
G
Q
ns
G
Q
ns
CK
Q
Unit
MHz
From
(Input)
To
(Output)
1. This parameter is characterized but not tested.
tos
LH
= | t
PLHm
- t
PLHn
|, tos
HL
= | t
PHLm
- t
PHLn
|
Rev.1.00 Nov. 26, 2004 page 5 of 8
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