74VHCT373AMTR [STMICROELECTRONICS]
OCTAL D-TYPE LATCH WITH 3 STATE OUTPUTS NON INVERTING; 八D型具有三态输出的非反相LATCH
| 型号： | 74VHCT373AMTR |
| 厂家： | 
ST |
| 描述： | OCTAL D-TYPE LATCH WITH 3 STATE OUTPUTS NON INVERTING |
| 文件： | 总13页 (文件大小：283K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
74VHCT373A
OCTAL D-TYPE LATCH
WITH 3 STATE OUTPUTS NON INVERTING
■
■
HIGH SPEED: t = 6.4 ns (TYP.) at V = 5V
PD CC
LOW POWER DISSIPATION:
I
= 4 µA (MAX.) at T =25°C
CC
A
■
■
■
■
■
■
COMPATIBLE WITH TTL OUTPUTS:
= 2V (MIN.), V = 0.8V (MAX)
POWER DOWN PROTECTION ON INPUTS
& OUTPUTS
V
IH
IL
SOP
TSSOP
T & R
SYMMETRICAL OUTPUT IMPEDANCE:
|I | = I = 8 mA (MIN)
OH
OL
Table 1: Order Codes
PACKAGE
BALANCED PROPAGATION DELAYS:
t
t
PLH
PHL
OPERATING VOLTAGE RANGE:
(OPR) = 4.5V to 5.5V
V
SOP
74VHCT373AMTR
74VHCT373ATTR
CC
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 373
TSSOP
■
■
IMPROVED LATCH-UP IMMUNITY
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 high level the outputs will be in a high
impedance state.
Power down protection is provided on all inputs
and outputs 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 since all
inputs are equipped with TTL threshold.
LOW NOISE: V
= 0.9V (MAX.)
OLP
DESCRIPTION
The 74VHCT373A 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
2
wiring C MOS 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
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
Rev. 4
1/13
December 2004
74VHCT373A
Figure 2: Input Equivalent Circuit
Table 2: Pin Description
PIN N°
SYMBOL
NAME AND FUNCTION
1
OE
3 State Output Enable
Input (Active LOW)
2, 5, 6, 9, 12,
15, 16, 19
Q0 to Q7 3-State Outputs
3, 4, 7, 8, 13,
14, 17, 18
D0 to D7
Data Inputs
11
10
20
LE
Latch Enable Input
Ground (0V)
GND
V
Positive Supply Voltage
CC
Table 3: Truth Table
OE
INPUTS
LE
OUTPUT
Q
D
H
L
L
L
X
L
X
X
L
Z
NO CHANGE*
H
H
L
H
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
2/13
74VHCT373A
Table 4: Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
V
Supply Voltage
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +7.0
V
V
V
CC
V
DC Input Voltage
I
V
DC Output Voltage (see note 1)
DC Output Voltage (see note 2)
DC Input Diode Current
DC Output Diode Current
DC Output Current
O
V
-0.5 to V + 0.5
V
O
CC
I
- 20
± 20
mA
mA
mA
mA
°C
IK
I
OK
I
± 25
O
I
or I
DC V or Ground Current
± 50
CC
GND
CC
T
Storage Temperature
-65 to +150
300
stg
T
Lead Temperature (10 sec)
°C
L
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
1) Output in OFF State
2) High or Low State
Table 5: Recommended Operating Conditions
Symbol
Parameter
Value
Unit
V
Supply Voltage
4.5 to 5.5
0 to 5.5
0 to 5.5
V
V
CC
V
Input Voltage
I
V
Output Voltage (see note 1)
Output Voltage (see note 2)
Operating Temperature
V
O
V
0 to V
V
O
CC
T
-55 to 125
0 to 20
°C
ns/V
op
Input Rise and Fall Time (see note 3) (V = 5.0 ± 0.5V)
dt/dv
CC
1) Output in OFF State
2) High or Low State
3) V from 0.8V to 2V
IN
3/13
74VHCT373A
Table 6: DC Specifications
Test Condition
Value
T = 25°C
Symbol
Parameter
-40 to 85°C -55 to 125°C Unit
A
V
CC
(V)
Min. Typ. Max. Min. Max. Min. Max.
V
High Level Input
Voltage
4.5 to
5.5
IH
2
2
2
V
V
V
Low Level Input
Voltage
4.5 to
5.5
IL
0.8
0.8
0.8
V
High Level Output
Voltage
I =-50 µA
4.5
4.5
4.5
4.5
4.4
4.5
0.0
4.4
3.8
4.4
3.7
OH
O
V
V
I =-8 mA
3.94
O
V
Low Level Output
Voltage
I =50 µA
0.1
0.1
0.1
OL
OZ
O
I =8 mA
0.36
0.44
0.55
O
I
High Impedance
Output Leakage
Current
V = V or V
4.5 to
5.5
I
IH
IL
±0.25
± 2.5
± 2.5
µA
V
= 0V to 5.5
O
I
Input Leakage
Current
0 to
5.5
I
V = 5.5V or GND
± 0.1
± 1.0
± 1.0
µA
µA
I
I
Quiescent Supply
Current
CC
V = V or GND
5.5
5.5
0
4
40
40
I
CC
+I
Additional Worst
Case Supply
Current
One Input at 3.4V,
CC
other input at V
1.35
0.5
1.5
5.0
1.5
5.0
mA
CC
or GND
I
Output Leakage
Current
OPD
V
= 5.5V
µA
OUT
Table 7: AC Electrical Characteristics (Input t = t = 3ns)
r
f
Test Condition
Value
T = 25°C
Symbol
Parameter
-40 to 85°C -55 to 125°C Unit
A
V
C
L
CC
(V) (pF)
Min. Typ. Max. Min. Max. Min. Max.
(*)
t
Propagation Delay
Time
LE to Q
15
50
15
50
5.4
6.0
6.4
7.1
12.3
13.3
8.5
1.0
1.0
1.0
1.0
13.5
14.5
9.5
1.0
1.0
1.0
1.0
13.5
14.5
9.5
PLH
5.0
5.0
5.0
5.0
ns
ns
t
PHL
(*)
(*)
(*)
t
t
Propagation Delay
Time
D to Q
PLH
PHL
9.5
10.5
10.5
(*)
t
t
Output Enable
Time
15
50
6.2
6.9
10.9
11.9
1.0
1.0
12.5
13.5
1.0
1.0
12.5
13.5
PZL
5.0
5.0
RL = 1KΩ
RL = 1KΩ
ns
ns
(*)
PZH
t
Output Disable
Time
PLZ
PHZ
(*)
50
6.7
11.2
1.0
12.0
1.0
12.0
5.0
t
t
Pulse Width (LE)
HIGH
w
(*)
(*)
(*)
6.5
1.5
3.5
8.5
1.5
3.5
8.5
1.5
3.5
ns
ns
ns
5.0
5.0
5.0
t
Setup Time D to LE
HIGH or LOW
s
t
Hold Time D to LE
HIGH or LOW
h
t
t
Output to Output
Skew time (note 1)
OSLH
(*)
50
1.0
1.0
1.0
ns
5.0
OSHL
(*) Voltage range is 5.0V ± 0.5V
Note 1: Parameter guaranteed by design. t
= |t
- t
|, t
= |t
- t
|
soLH
pLHm pLHn soHL
pHLm pHLn
4/13
74VHCT373A
Table 8: Capacitive Characteristics
Test Condition
Value
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
T = 25°C
Symbol
Parameter
A
C
Input Capacitance
4
9
10
10
10
pF
pF
IN
Output
Capacitance
C
OUT
C
Power Dissipation
Capacitance
(note 1)
PD
14
pF
1) C is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
PD
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
= C x V x f + I /8 (per Latch)
CC(opr)
PD CC IN CC
Table 9: Dynamic Switching Characteristics
Test Condition
Value
T = 25°C
Symbol
Parameter
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
A
V
(V)
CC
V
Dynamic Low
Voltage Quiet
Output (note 1, 2)
0.6
0.9
OLP
5.0
V
-0.9
2.0
-0.6
OLV
Dynamic High
Voltage Input
(note 1, 3)
V
C = 50 pF
L
5.0
5.0
V
IHD
Dynamic Low
Voltage Input
(note 1, 3)
V
0.8
ILD
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.0V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.0V. Inputs under test switching: 3.0V to threshold (V ), 0V to threshold
ILD
(V ), f=1MHz.
IHD
5/13
74VHCT373A
Figure 4: Test Circuit
TEST
SWITCH
t
t
t
, t
Open
PLH PHL
, t
V
CC
PZL PLZ
, t
GND
PZH PHZ
C
R
R
=15/50pF or equivalent (includes jig and probe capacitance)
L
L
T
= R1 = 1KΩ or equivalent
= Z
of pulse generator (typically 50Ω)
OUT
Figure 5: Waveform - LE To Qn Propagation Delays, LE Minimun Pulse Width, Dn To LE Setup
And Hold Times (f=1MHz; 50% duty cycle)
6/13
74VHCT373A
Figure 6: Waveform - Output Enable And Disable Times (f=1MHz; 50% duty cycle)
Figure 7: Waveform - Propagation Delay Time (f=1MHz; 50% duty cycle)
7/13
74VHCT373A
SO-20 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
TYP
MAX.
MIN.
MAX.
A
A1
B
2.35
2.65
0.093
0.104
0.1
0.33
0.23
12.60
7.4
0.30
0.51
0.32
13.00
7.6
0.004
0.013
0.009
0.496
0.291
0.012
0.020
0.013
0.512
0.299
C
D
E
e
1.27
0.050
H
10.00
0.25
0.4
10.65
0.75
1.27
8°
0.394
0.010
0.016
0°
0.419
0.030
0.050
8°
h
L
k
0°
ddd
0.100
0.004
0016022D
8/13
74VHCT373A
TSSOP20 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
TYP
MAX.
1.2
MIN.
MAX.
0.047
0.006
0.041
0.012
0.0079
0.260
0.260
0.176
A
A1
A2
b
0.05
0.8
0.15
1.05
0.30
0.20
6.6
0.002
0.031
0.007
0.004
0.252
0.244
0.169
0.004
0.039
1
0.19
0.09
6.4
c
D
6.5
6.4
0.256
0.252
E
6.2
6.6
E1
e
4.3
4.4
4.48
0.173
0.65 BSC
0.0256 BSC
K
0˚
8˚
0˚
8˚
L
0.45
0.60
0.75
0.018
0.024
0.030
A2
A
K
L
b
e
A1
E
c
D
E1
PIN 1 IDENTIFICATION
1
0087225C
9/13
74VHCT373A
Tape & Reel SO-20 MECHANICAL DATA
mm.
TYP
inch
TYP.
DIM.
MIN.
MAX.
330
MIN.
MAX.
12.992
0.519
A
C
12.8
20.2
60
13.2
0.504
0.795
2.362
D
N
T
30.4
11
1.197
0.433
0.528
0.130
0.161
0.476
Ao
Bo
Ko
Po
P
10.8
13.2
3.1
0.425
0.520
0.122
0.153
0.468
13.4
3.3
3.9
4.1
11.9
12.1
10/13
74VHCT373A
Tape & Reel TSSOP20 MECHANICAL DATA
mm.
TYP
inch
TYP.
DIM.
MIN.
MAX.
330
MIN.
MAX.
12.992
0.519
A
C
12.8
20.2
60
13.2
0.504
0.795
2.362
D
N
T
22.4
7
0.882
0.276
0.280
0.075
0.161
0.476
Ao
Bo
Ko
Po
P
6.8
6.9
0.268
0.272
0.067
0.153
0.468
7.1
1.9
4.1
12.1
1.7
3.9
11.9
11/13
74VHCT373A
Table 10: Revision History
Date
Revision
Description of Changes
Order Codes Revision - pag. 1.
16-Dec-2004
4
12/13
74VHCT373A
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners
© 2004 STMicroelectronics - All Rights Reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
13/13
相关型号：
74VHCT373AMX_NL
Bus Driver, AHCT/VHCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, 0.300 INCH, LEAD FREE, MS-013, SOIC-20
FAIRCHILD
74VHCT373M
IC AHCT/VHCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, SOIC-20, Bus Driver/Transceiver
NSC
74VHCT373M
Bus Driver, AHCT/VHCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, PLASTIC, SOIC-20
FAIRCHILD
74VHCT373MSCX
IC AHCT/VHCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20, EIAJ TYPE1, PLASTIC, SSOP-20, Bus Driver/Transceiver
NSC
74VHCT373MTC
IC AHCT/VHCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, TSSOP-20, Bus Driver/Transceiver
NSC
©2020 ICPDF网 联系我们和版权申明