RD74LVC573B
Octal D-type Transparent Latches with 3-state Outputs
REJ03D0209–0100Z
Rev.1.00
Apr.15.2004
Description
The RD74LVC573B has eight D type latches with three state outputs in a 20-pin package. When the latch enable input
is high, the Q outputs will follow the D inputs. When the latch enable goes low, data at the D inputs will be retained at
the outputs until latch enable 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
RD74LVC573BFPEL
RD74LVC573BTELL
Package Type
Package Code
Package
Abbreviation
FP
T
Taping Abbreviation
(Quantity)
EL (2,000 pcs / Reel)
ELL (2,000 pcs / Reel)
SOP-20 pin (JEITA) FP-20DAV
TSSOP-20 pin
TTP-20DAV
Function Table
Inputs
OC
L
L
L
H
H:
L:
X:
Z:
Q
0
:
LE
H
H
L
X
D
H
L
X
X
Output Q
H
L
Q
0
Z
High level
Low level
Immaterial
High impedance
Level of Q before the indicated steady input conditions were established.
Rev.1.00, Apr.15.2004, page 1 of 9
RD74LVC573B
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
Symbol
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
or I
GND
Tstg
Ratings
–0.5 to 7.0
–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
Unit
V
mA
V
mA
V
mA
mA
°C
Conditions
V
I
= –0.5 V
V
O
= –0.5 V
V
O
= V
CC
+0.5 V
Output "H" or "L"
Output "Z" or V
CC
: OFF
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.
Recommended Operating Conditions
Item
Supply voltage
Input/output voltage
Symbol
V
CC
V
I
V
O
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
4
8
12
24
20
10
Unit
V
V
Conditions
Data hold
At operation
OC,
LE, D
Output "H" or "L"
Output "Z" or V
CC
: OFF
V
CC
= 1.65 V
V
CC
= 2.3 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
V
CC
= 1.65 V
V
CC
= 2.3 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
V
CC
= 1.65 V to 2.7 V
V
CC
= 3.0 V to 5.5 V
Operating temperature
Output current
°C
mA
I
OL
mA
Input rise / fall time
*1
t
r
, t
f
ns/V
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Rev.1.00, Apr.15.2004, page 3 of 9
RD74LVC573B
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
1.65 to 1.95
2.3 to 2.7
2.7 to 3.6
4.5 to 5.5
1.65 to 5.5
1.65
2.3
2.7
3.0
3.0
4.5
1.65 to 5.5
1.65
2.3
2.7
3.0
4.5
0 to 5.5
0
2.7 to 5.5
2.7 to 3.6
2.7 to 5.5
2.7 to 3.6
Min
V
CC
×0.65
1.7
2.0
V
CC
×0.7
—
—
—
—
V
CC
–0.2
1.2
1.7
2.2
2.4
2.2
3.8
—
—
—
—
—
—
—
—
—
—
—
—
Max
—
—
—
—
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
Unit
V
Test Conditions
V
IL
Output voltage
V
OH
V
I
OH
= –100
µA
I
OH
= –4 mA
I
OH
= –8 mA
I
OH
= –12 mA
I
OH
= –24 mA
I
OL
= 100
µA
I
OL
= 4 mA
I
OL
= 8 mA
I
OL
= 12 mA
I
OL
= 24 mA
V
OL
Input current
Output leak current
Off state output
current
Quiescent supply
current
I
IN
I
OFF
I
OZ
I
CC
∆I
CC
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
Rev.1.00, Apr.15.2004, page 4 of 9
RD74LVC573B
Switching Characteristics
Ta = –40 to 85°C
Item
Propagation delay time
Symbol V
CC
(V)
t
PLH
t
PHL
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
1.8±0.15
2.5±0.2
2.7
3.3±0.3
5.0±0.5
3.3
3.3
Min
1.0
1.0
1.0
1.5
1.0
1.0
1.0
1.0
2.0
1.0
1.0
1.0
1.0
1.5
1.0
1.0
1.0
1.0
1.6
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
—
—
—
—
—
—
—
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4.0
8.0
Max
19.1
9.6
7.7
6.9
5.4
22.8
10.5
8.4
7.7
6.2
20.0
10.5
8.5
7.5
6.0
19.3
7.8
7.0
6.5
5.5
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1.0
1.0
—
—
Unit
ns
From
(Input)
D
To
(Output)
Q
t
PLH
t
PHL
ns
LE
Q
Output enable time
t
ZH
t
ZL
ns
OC
Q
Output disable time
t
HZ
t
LZ
ns
OC
Q
Setup time
t
su
ns
Hold time
t
h
ns
Pulse width
t
w
ns
Between output
pins skew
*1
t
OSLH
t
OSHL
ns
Input capacitance
Output capacitance
Note:
C
IN
C
O
pF
pF
1. This parameter is characterized but not tested.
tos
LH
= | t
PLHm
- t
PLHn
|, tos
HL
= | t
PHLm
- t
PHLn
|
Rev.1.00, Apr.15.2004, page 5 of 9
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