STMICROELECTRONICS 74VHC573

74VHC573
OCTAL D-TYPE LATCH
WITH 3 STATE OUTPUTS NON INVERTING
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HIGH SPEED: tPD = 5.0 ns (TYP.) at VCC = 5V
LOW POWER DISSIPATION:
ICC = 4 µA (MAX.) at TA=25°C
HIGH NOISE IMMUNITY:
VNIH = VNIL = 28% VCC (MIN.)
POWER DOWN PROTECTION ON INPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 8 mA (MIN)
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 573
IMPROVED LATCH-UP IMMUNITY
LOW NOISE: VOLP = 0.9V (MAX.)
DESCRIPTION
The 74VHC573 is an advanced high-speed
CMOS OCTAL D-TYPE LATCH with 3 STATE
OUTPUTS NON INVERTING fabricated with
sub-micron silicon gate and double-layer metal
wiring C2MOS technology.
These 8 bit D-Type latch are controlled by a latch
enable input (LE) and an output enable input (OE).
While the LE inputs is held at a high level, the Q
outputs will follow the data input precisely. When
the LE is taken low, the Q outputs will be latched
SOP
TSSOP
Table 1: Order Codes
PACKAGE
T&R
SOP
TSSOP
74VHC573MTR
74VHC573TTR
precisely at the logic level of D input data. While
the (OE) input is low, the 8 outputs will be in a
normal logic state (high or low logic level) and
while (OE) is in high level, the outputs will be in a
high impedance state.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage. This device can be
used to interface 5V to 3V.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
Figure 1: Pin Connection And IEC Logic Symbols
November 2004
Rev. 5
1/14
74VHC573
Figure 2: Input Equivalent Circuit
Table 2: Pin Description
PIN N°
SYMBOL
NAME AND FUNCTION
1
OE
2, 3, 4, 5, 6,
7, 8, 9
12, 13, 14,
15, 16, 17,
18, 19
11
10
20
D0 to D7
3 State Output Enable
Input (Active LOW)
Data Inputs
Q0 to Q7
3-State Latch Outputs
LE
GND
VCC
Latch Enable Input
Ground (0V)
Positive Supply Voltage
Table 3: Truth Table
INPUTS
OE
LE
D
Q
H
L
L
L
X
L
H
H
X
X
L
H
Z
NO CHANGE*
L
H
X : Don’t Care
Z : High Impedance
* : Q Outputs are Latched at the time when the LE input is taken low logic level.
Figure 3: Logic Diagram
This logic diagram has not be used to estimate propagation delays
2/14
OUTPUT
74VHC573
Table 4: Absolute Maximum Ratings
Symbol
VCC
Parameter
Supply Voltage
VI
DC Input Voltage
VO
DC Output Voltage
IIK
DC Input Diode Current
IOK
DC Output Diode Current
IO
DC Output Current
ICC or IGND DC VCC or Ground Current
Storage Temperature
Tstg
TL
Lead Temperature (10 sec)
Value
Unit
-0.5 to +7.0
V
-0.5 to +7.0
V
-0.5 to VCC + 0.5
- 20
V
mA
± 20
mA
± 25
mA
± 75
mA
-65 to +150
°C
300
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
Table 5: Recommended Operating Conditions
Symbol
VCC
Parameter
Supply Voltage
Value
Unit
2 to 5.5
V
VI
Input Voltage
0 to 5.5
V
VO
Output Voltage
0 to VCC
V
Top
Operating Temperature
-55 to 125
°C
0 to 100
0 to 20
ns/V
dt/dv
Input Rise and Fall Time (note 1) (VCC = 3.3 ± 0.3V)
(VCC = 5.0 ± 0.5V)
1) VIN from 30% to 70% of VCC
3/14
74VHC573
Table 6: DC Specifications
Test Condition
Symbol
VIH
VIL
VOH
VOL
IOZ
II
ICC
4/14
Parameter
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Low Level Output
Voltage
High Impedance
Output Leakage
Current
Input Leakage
Current
Quiescent Supply
Current
Value
TA = 25°C
VCC
(V)
Min.
2.0
3.0 to
5.5
2.0
3.0 to
5.5
Typ.
Max.
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
1.5
1.5
1.5
0.7VCC
0.7VCC
0.7VCC
Max.
V
0.5
0.5
0.5
0.3VCC
0.3VCC
0.3VCC
2.0
IO=-50 µA
1.9
2.0
1.9
1.9
3.0
IO=-50 µA
2.9
3.0
2.9
2.9
4.5
IO=-50 µA
4.4
4.5
3.0
IO=-4 mA
2.58
3.94
4.4
4.4
2.48
2.4
Unit
V
V
4.5
IO=-8 mA
2.0
IO=50 µA
0.0
0.1
0.1
0.1
3.0
IO=50 µA
0.0
0.1
0.1
0.1
4.5
IO=50 µA
0.0
0.1
0.1
0.1
3.0
IO=4 mA
0.36
0.44
0.55
4.5
IO=8 mA
0.36
0.44
0.55
5.5
VI = VIH or VIL
VO = VCC or GND
±0.25
± 2.5
± 2.5
µA
0 to
5.5
VI = 5.5V or GND
± 0.1
±1
±1
µA
5.5
VI = VCC or GND
4
40
40
µA
3.8
3.7
V
74VHC573
Table 7: AC Electrical Characteristics (Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
VCC
(V)
CL
(pF)
tPLH
tPHL
Propagation Delay
Time
LE to Q
3.3(*)
(*)
(**)
tPZL
tPZH
tPLZ
tPHZ
tw
ts
th
tOSLH
tOSHL
Propagation Delay
Time
D to Q
Output Enable
Time
Output Disable
Time
Pulse Width (LE)
HIGH
Setup Time D to LE
HIGH or LOW
Setup Time D to LE
HIGH or LOW
Output to Output
Skew time (note 1)
TA = 25°C
-55 to 125°C
Max.
Min.
Max.
Min.
Max.
15
7.6
11.9
1.0
14.0
1.0
14.0
50
10.1
15.4
1.0
17.5
1.0
17.5
15
5.0
7.7
1.0
9.0
1.0
9.0
5.0(**)
50
6.5
9.7
1.0
11.0
1.0
11.0
3.3(*)
15
7.0
11.0
1.0
13.0
1.0
13.0
3.3(*)
50
9.5
14.5
1.0
16.5
1.0
16.5
5.0(**)
15
4.5
6.8
1.0
8.0
1.0
8.0
5.0(**)
50
6.0
8.8
1.0
10.0
1.0
10.0
3.3
Min.
-40 to 85°C
Typ.
5.0
tPLH
tPHL
Value
15
RL = 1KΩ
7.3
11.5
1.0
13.5
1.0
13.5
3.3
50
RL = 1KΩ
9.8
15.0
1.0
17.0
1.0
17.0
5.0(**)
(*)
(*)
3.3
15
RL = 1KΩ
5.2
7.7
1.0
9.0
1.0
9.0
5.0(**)
50
RL = 1KΩ
6.7
9.7
1.0
11.0
1.0
11.0
3.3(*)
50
RL = 1KΩ
10.7
14.5
1.0
16.5
1.0
16.5
5.0(**)
50
RL = 1KΩ
6.7
9.7
1.0
11
1.0
11
3.3(*)
5.0
5.0
5.0
5.0(**)
5.0
5.0
5.0
3.3(*)
3.5
3.5
3.5
(**)
3.5
3.5
3.5
3.3(*)
1.5
1.5
1.5
(**)
1.5
1.5
1.5
5.0
5.0
3.3(*)
50
1.5
1.5
1.5
5.0(**)
50
1.0
1.0
1.0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V
Note 1: Parameter guaranteed by design. tsoLH = |tpLHm - tpLHn|, tsoHL = |tpHLm - tpHLn|
Table 8: Capacitive Characteristics
Test Condition
Symbol
Parameter
Value
TA = 25°C
Min.
CIN
Input Capacitance
COUT
Output
Capacitance
Power Dissipation
Capacitance
(note 1)
CPD
Typ.
Max.
8
10
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
10
Unit
Max.
10
pF
10
pF
29
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/8 (per Latch)
5/14
74VHC573
Table 9: Dynamic Switching Characteristics
Test Condition
Symbol
VOLP
VOLV
VIHD
VILD
Parameter
Dynamic Low
Voltage Quiet
Output (note 1, 2)
Dynamic High
Voltage Input
(note 1, 3)
Dynamic Low
Voltage Input
(note 1, 3)
TA = 25°C
VCC
(V)
Min.
5.0
5.0
Value
-0.9
CL = 50 pF
5.0
Typ.
Max.
0.6
0.9
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
Unit
Max.
V
-0.6
3.5
V
1.5
V
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 5.0V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 5.0V. Inputs under test switching: 5.0V to threshold (VILD ), 0V to threshold
(VIHD), f=1MHz.
Figure 4: Test Circuit
TEST
SWITCH
tPLH, tPHL
Open
tPZL, tPLZ
VCC
tPZH, tPHZ
GND
CL =15/50pF or equivalent (includes jig and probe capacitance)
RL = R1 = 1KΩ or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
6/14
74VHC573
Figure 5: Waveform - LE To Qn Propagation Delays, LE Minimum Pulse Width, Dn To LE Setup
And Hold Times (f=1MHz; 50% duty cycle)
Figure 6: Waveform - Output Enable And Disable Times (f=1MHz; 50% duty cycle)
7/14
74VHC573
Figure 7: Waveform - Propagation Delay Time (f=1MHz; 50% duty cycle)
8/14
74VHC573
SO-20 MECHANICAL DATA
DIM.
mm.
MIN.
TYP
inch
MAX.
MIN.
TYP.
MAX.
A
2.35
2.65
0.093
0.104
A1
0.1
0.30
0.004
0.012
B
0.33
0.51
0.013
0.020
C
0.23
0.32
0.009
0.013
D
12.60
13.00
0.496
0.512
E
7.4
7.6
0.291
0.299
e
1.27
0.050
H
10.00
10.65
0.394
0.419
h
0.25
0.75
0.010
0.030
L
0.4
1.27
0.016
0.050
k
0°
8°
0°
8°
ddd
0.100
0.004
0016022D
9/14
74VHC573
TSSOP20 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
MAX.
A
MIN.
TYP.
MAX.
1.2
A1
0.05
A2
0.8
b
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.0079
D
6.4
6.5
6.6
0.252
0.256
0.260
E
6.2
6.4
6.6
0.244
0.252
0.260
E1
4.3
4.4
4.48
0.169
0.173
0.176
1
e
0.65 BSC
K
0˚
L
0.45
A
0.0256 BSC
0.60
8˚
0˚
0.75
0.018
8˚
0.024
0.030
A2
A1
b
K
e
L
E
c
D
E1
PIN 1 IDENTIFICATION
1
0087225C
10/14
74VHC573
Tape & Reel SO-20 MECHANICAL DATA
mm.
inch
DIM.
MIN.
A
TYP
MAX.
MIN.
330
MAX.
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
13.2
TYP.
0.504
30.4
0.519
1.197
Ao
10.8
11
0.425
0.433
Bo
13.2
13.4
0.520
0.528
Ko
3.1
3.3
0.122
0.130
Po
3.9
4.1
0.153
0.161
P
11.9
12.1
0.468
0.476
11/14
74VHC573
Tape & Reel TSSOP20 MECHANICAL DATA
mm.
inch
DIM.
MIN.
A
MAX.
MIN.
330
13.2
TYP.
MAX.
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
12/14
TYP
0.504
22.4
0.519
0.882
Ao
6.8
7
0.268
0.276
Bo
6.9
7.1
0.272
0.280
Ko
1.7
1.9
0.067
0.075
Po
3.9
4.1
0.153
0.161
P
11.9
12.1
0.468
0.476
74VHC573
Table 10: Revision History
Date
Revision
12-Nov-2004
5
Description of Changes
Order Codes Revision - pag. 1.
13/14
74VHC573
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