MC145472FE [MOTOROLA]
LOW-VOLTAGE CMOS 16-BIT TRANSPARENT LATCH; 低电压CMOS 16位透明锁存器
| 型号： | MC145472FE |
| 厂家： | 
MOTOROLA |
| 描述： | LOW-VOLTAGE CMOS 16-BIT TRANSPARENT LATCH |
| 文件： | 总6页 (文件大小：127K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SEMICONDUCTOR TECHNICAL DATA
The MC74LCX16373 is a high performance, non–inverting 16–bit
transparent latch operating from a 2.7 to 3.6V supply. The device is byte
controlled. Each byte has separate Output Enable and Latch Enable
inputs. These control pins can be tied together for full 16–bit operation.
High impedance TTL compatible inputs significantly reduce current
loading to input drivers while TTL compatible outputs offer improved
LOW–VOLTAGE
CMOS 16–BIT
TRANSPARENT LATCH
switching noise performance. A V specification of 5.5V allows
I
MC74LCX16373 inputs to be safely driven from 5V devices.
The MC74LCX16373 contains 16 D–type latches with 3–state
5V–tolerant outputs. When the Latch Enable (LEn) inputs are HIGH, data
on the Dn inputs enters the latches. In this condition, the latches are
transparent, i.e., a latch output will change state each time its D input
changes. When LE is LOW, the latches store the information that was
present on the D inputs a setup time preceding the HIGH–to–LOW
transition of LE. The 3–state outputs are controlled by the Output Enable
(OEn) inputs. When OE is LOW, the outputs are enabled. When OE is
HIGH, the standard outputs are in the high impedance state, but this does
not interfere with new data entering into the latches.
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 1201–01
• Designed for 2.7 to 3.6V V
CC
Operation
• 5.4ns Maximum t
pd
• 5V Tolerant — Interface Capability With 5V TTL Logic
• Supports Live Insertion and Withdrawal
• I
OFF
Specification Guarantees High Impedance When V
= 0V
CC
• LVTTL Compatible
• LVCMOS Compatible
• 24mA Balanced Output Sink and Source Capability
PIN NAMES
• Near Zero Static Supply Current in All Three Logic States (20µA)
Substantially Reduces System Power Requirements
Pins
Function
OEn
LEn
D0–D15
O0–O15
Output Enable Inputs
Latch Enable Inputs
Inputs
• Latchup Performance Exceeds 500mA
• ESD Performance: Human Body Model >2000V; Machine Model >200V
Outputs
11/96
REV 1
Motorola, Inc. 1996
MC74LCX16373
LOGIC DIAGRAM
1
24
25
OE1
LE1
OE2
OE1
O0
LE1
1
2
48
48
47 D0
LE2
D8
O1
D1
2
13
14
16
17
19
20
22
23
3
46
45
44
43
42
41
40
39
38
37
36
35
nLE
D
nLE
D
O0
O1
O2
O3
O4
O5
O6
O7
O8
47
Q
Q
Q
Q
Q
36
Q
Q
Q
Q
Q
GND
O2
GND
D2
4
D0
D1
D2
D3
D4
D5
D6
D7
5
3
nLE
D
nLE
D
O3
D3
6
O9
46
44
43
41
40
38
37
35
33
32
30
29
27
26
V
V
D9
D10
D11
D12
D13
D14
D15
7
CC
CC
O4
O5
D4
8
5
nLE
D
nLE
D
D5
9
O10
O11
O12
O13
O14
O15
GND
O6
10
11
12
13
14
GND
D6
6
nLE
D
nLE
D
O7
D7
O8
D8
O9
D9
8
nLE
D
nLE
D
GND 15
34 GND
O10
O11
D10
D11
16
17
18
19
20
21
22
23
24
33
32
31
30
29
28
27
26
25
9
nLE
D
nLE
D
V
V
Q
Q
Q
Q
Q
Q
CC
CC
O12
D12
D13
GND
D14
D15
LE2
O13
GND
O14
O15
OE2
11
12
nLE
D
nLE
D
nLE
D
nLE
D
Inputs
Outputs
Inputs
Outputs
LE1
OE1
H
D0:7
X
O0:7
Z
LE2
X
OE2
H
D8:15
O8:15
X
H
H
L
X
L
Z
L
L
L
L
H
L
L
H
H
H
L
H
X
H
L
X
O0
L
L
O0
H = High Voltage Level; L = Low Voltage Level; Z = High Impedance State; X = High or Low Voltage Level and Transitions Are Acceptable, for I
reasons, DO NOT FLOAT Inputs
CC
MOTOROLA
2
MC74LCX16373
ABSOLUTE MAXIMUM RATINGS*
Symbol
CC
Parameter
Value
Condition
Unit
V
V
V
V
DC Supply Voltage
DC Input Voltage
DC Output Voltage
–0.5 to +7.0
–0.5 ≤ V ≤ +7.0
V
I
I
–0.5 ≤ V ≤ +7.0
Output in 3–State
Note 1.
V
O
O
–0.5 ≤ V ≤ V
+ 0.5
CC
V
O
I
I
DC Input Diode Current
DC Output Diode Current
–50
–50
V < GND
mA
mA
mA
mA
mA
mA
°C
IK
I
V
O
< GND
OK
+50
V > V
O CC
I
I
I
DC Output Source/Sink Current
DC Supply Current Per Supply Pin
DC Ground Current Per Ground Pin
Storage Temperature Range
±50
O
±100
±100
CC
GND
T
–65 to +150
STG
*
Absolutemaximumcontinuousratingsarethosevaluesbeyondwhichdamagetothedevicemayoccur. Exposuretotheseconditionsorconditions
beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is not implied.
1. Output in HIGH or LOW State. I absolute maximum rating must be observed.
O
RECOMMENDED OPERATING CONDITIONS
Symbol
CC
Parameter
Min
Typ
Max
Unit
V
Supply Voltage
Operating
Data Retention Only
2.0
1.5
3.3
3.3
3.6
3.6
V
V
V
Input Voltage
0
5.5
V
V
I
Output Voltage
(HIGH or LOW State)
(3–State)
0
0
V
CC
O
5.5
–24
24
I
I
I
I
HIGH Level Output Current, V
= 3.0V – 3.6V
mA
mA
mA
mA
°C
OH
OL
OH
OL
CC
LOW Level Output Current, V
= 3.0V – 3.6V
= 2.7V – 3.0V
= 2.7V – 3.0V
CC
HIGH Level Output Current, V
–12
12
CC
LOW Level Output Current, V
CC
T
A
Operating Free–Air Temperature
Input Transition Rise or Fall Rate, V from 0.8V to 2.0V,
–40
0
+85
10
∆t/∆V
ns/V
IN
V
= 3.0V
CC
DC ELECTRICAL CHARACTERISTICS
T
A
= –40°C to +85°C
Symbol
Characteristic
HIGH Level Input Voltage (Note 2.)
LOW Level Input Voltage (Note 2.)
HIGH Level Output Voltage
Condition
Min
2.0
Max
Unit
V
V
V
V
2.7V ≤ V
≤ 3.6V
IH
CC
CC
2.7V ≤ V
2.7V ≤ V
≤ 3.6V
= –100µA
0.8
V
IL
≤ 3.6V; I
V
– 0.2
V
OH
CC
OH
CC
V
CC
V
CC
V
CC
= 2.7V; I
= 3.0V; I
= 3.0V; I
= –12mA
= –18mA
= –24mA
2.2
OH
OH
OH
2.4
2.2
V
OL
LOW Level Output Voltage
2.7V ≤ V
≤ 3.6V; I
= 100µA
0.2
0.4
V
CC
OL
OL
V
= 2.7V; I = 12mA
CC
CC
CC
V
V
= 3.0V; I
= 3.0V; I
= 16mA
= 24mA
0.4
OL
OL
0.55
2. These values of V are used to test DC electrical characteristics only.
I
3
MOTOROLA
MC74LCX16373
DC ELECTRICAL CHARACTERISTICS (continued)
T
A
= –40°C to +85°C
Symbol
Characteristic
Input Leakage Current
Condition
≤ 3.6V; 0V ≤ V ≤ 5.5V
Min
Max
±5.0
±5.0
Unit
µA
I
I
2.7V ≤ V
I
CC
I
3–State Output Current
2.7 ≤ V
≤ 3.6V; 0V ≤ V ≤ 5.5V;
µA
OZ
CC
V = V or V
IL
O
I
IH
I
I
Power–Off Leakage Current
Quiescent Supply Current
V
= 0V; V or V = 5.5V
10
20
µA
µA
µA
µA
OFF
CC
I
O
2.7 ≤ V
≤ 3.6V; V = GND or V
CC
CC
I
CC
2.7 ≤ V
≤ 3.6V; 3.6 ≤ V or V ≤ 5.5V
±20
500
CC
I
O
∆I
CC
Increase in I
CC
per Input
2.7 ≤ V
≤ 3.6V; V = V
IH
– 0.6V
CC
CC
AC CHARACTERISTICS (t = t = 2.5ns; C = 50pF; R = 500Ω)
R
F
L
L
Limits
= –40°C to +85°C
T
A
V
= 3.0V to 3.6V
Max
V
= 2.7V
CC
CC
Symbol
Parameter
Propagation Delay
to O
Waveform
Min
Min
Max
Unit
t
t
1
1.5
1.5
5.4
5.4
1.5
1.5
5.9
5.9
ns
PLH
PHL
D
n
n
t
t
Propagation Delay
LE to O
3
2
2
1.5
1.5
5.5
5.5
1.5
1.5
6.4
6.4
ns
ns
ns
PLH
PHL
n
t
t
Output Enable Time to HIGH and
LOW Level
1.5
1.5
6.1
6.1
1.5
1.5
6.5
6.5
PZH
PZL
t
t
Output Disable Time from HIGH and
LOW Level
1.5
1.5
6.0
6.0
1.5
1.5
6.3
6.3
PHZ
PLZ
t
t
t
Setup TIme, HIGH or LOW D to LE
3
3
3
2.5
1.5
3.0
2.5
1.5
3.0
ns
ns
ns
ns
s
n
Hold TIme, HIGH or LOW D to LE
n
h
w
LE Pulse Width, HIGH
t
t
Output–to–Output Skew
(Note 3.)
1.0
1.0
OSHL
OSLH
3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH–to–LOW (t
guaranteed by design.
) or LOW–to–HIGH (t
OSHL
); parameter
OSLH
DYNAMIC SWITCHING CHARACTERISTICS
T
A
= +25°C
Symbol
Characteristic
Condition
Min
Typ
0.8
0.8
Max
Unit
V
V
V
Dynamic LOW Peak Voltage (Note 4.)
Dynamic LOW Valley Voltage (Note 4.)
V
V
= 3.3V, C = 50pF, V = 3.3V, V = 0V
L IH IL
OLP
CC
= 3.3V, C = 50pF, V = 3.3V, V = 0V
IH IL
V
OLV
CC
L
4. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is
measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
Input Capacitance
Condition
= 3.3V, V = 0V or V
Typical
Unit
pF
C
C
C
V
V
7
8
IN
CC
I
CC
CC
Output Capacitance
= 3.3V, V = 0V or V
pF
OUT
PD
CC
I
Power Dissipation Capacitance
10MHz, V
= 3.3V, V = 0V or V
CC
20
pF
CC
I
MOTOROLA
4
MC74LCX16373
2.7V
0V
1.5V
1.5V
Dn
On
t
t
PHL
PLH
V
OH
OL
1.5V
1.5V
V
WAVEFORM 1 – PROPAGATION DELAYS
= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns
t
R
F
W
2.7V
0V
2.7V
1.5V
0V
Dn
1.5V
1.5V
OEn
On
t
t
h
s
t
t
PHZ
PZH
2.7V
0V
V
V
CC
OH
– 0.3V
LEn
t
1.5V
1.5V
w
1.5V
1.5V
≈
0V
t
, t
PLH PHL
t
t
PLZ
PZL
V
OH
OL
≈
3.0V
On
1.5V
On
V
V
GND
+ 0.3V
OL
WAVEFORM 3 – LE to On PROPAGATION DELAYS, LE MINIMUM
PULSE WIDTH, Dn to LE SETUP AND HOLD TIMES
WAVEFORM 2 – OUTPUT ENABLE AND DISABLE TIMES
= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns
t
= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns except when noted
t
R
F W
R
F
W
Figure 1. AC Waveforms
V
CC
6V
OPEN
GND
R
L
1
PULSE
GENERATOR
DUT
R
C
R
T
L
TEST
SWITCH
Open
6V
t , t
PLH PHL
t , t
PZL PLZ
Open Collector/Drain t
PLH
and t
PHL
6V
t
, t
GND
PZH PHZ
C
R
R
= 50pF or equivalent (Includes jig and probe capacitance)
L
L
T
= R = 500Ω or equivalent
1
OUT
= Z
of pulse generator (typically 50Ω)
Figure 2. Test Circuit
5
MOTOROLA
MC74LCX16373
OUTLINE DIMENSIONS
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 1201–01
ISSUE A
48X K REF
0.12 (0.005)
K
K1
NOTES:
M
S
S
T
U
V
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
J
J1
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS OR GATE
BURRS. MOLD FLASH OR GATE BURRS
SHALL NOT EXCEED 0.15 (0.006) PER SIDE.
4. DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN
EXCESS OF THE K DIMENSION AT MAXIMUM
MATERIAL CONDITION.
48
25
SECTION N–N
B
–U–
L
N
5. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
1
24
6. DIMENSIONS A AND B ARE TO BE
DETERMINED AT DATUM PLANE –W–.
MILLIMETERS
INCHES
A
–V–
PIN 1
DIM
A
B
C
D
F
G
H
J
J1
K
MIN
12.40
6.00
–––
0.05
0.50
MAX
12.60
6.20
1.10
0.15
0.75
MIN
MAX
0.496
0.244
0.043
0.006
0.030
IDENT.
0.488
0.236
–––
0.002
0.020
N
F
M
0.25 (0.010)
DETAIL E
0.50 BSC
0.0197 BSC
0.37
0.09
0.09
0.17
0.17
7.95
0
–––
0.20
0.16
0.27
0.23
8.25
8
0.015
0.004
0.004
0.007
0.007
0.313
0
–––
0.008
0.006
0.011
0.009
0.325
8
D
C
K1
L
M
–W–
0.076 (0.003)
DETAIL E
–T–
SEATING
PLANE
H
G
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,including“Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applicationsintended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and
Opportunity/Affirmative Action Employer.
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
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USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;
P.O. Box 5405, Denver, Colorado 80217. 1–800–441–2447
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,
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51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
MC74LCX16373/D
◊
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