MC74LCX16543ADT [MOTOROLA]
Registered Bus Transceiver, LVC/LCX/Z Series, 2-Func, 8-Bit, True Output, CMOS, PDSO56, PLASTIC, TSSOP-56;
| 型号： | MC74LCX16543ADT |
| 厂家： | 
MOTOROLA |
| 描述： | Registered Bus Transceiver, LVC/LCX/Z Series, 2-Func, 8-Bit, True Output, CMOS, PDSO56, PLASTIC, TSSOP-56 光电二极管 逻辑集成电路 |
| 文件： | 总8页 (文件大小：136K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SEMICONDUCTOR TECHNICAL DATA
The MC74LCX16543A is a high performance, non–inverting 16–bit
latching transceiver operating from a 2.7 to 3.6V supply. The device is
byte controlled. Each byte has separate control inputs which can be tied
together for full 16–bit operation. High impedance TTL compatible inputs
significantly reduce current loading to input drivers while TTL compatible
LOW–VOLTAGE CMOS
16–BIT LATCHING
TRANSCEIVER
outputs offer improved switching noise performance. A V specification of
I
5.5V allows MC74LCX16543A inputs to be safely driven from 5V devices.
The MC74LCX16543A is suitable for memory address driving and all TTL
level bus oriented transceiver applications.
For data flow from A to B with the EAB LOW, the A–to–B Output
Enable (OEAB) must be LOW in order to enable data to the B bus, as
indicated in the Function Table. With EAB LOW, a LOW signal on the
A–to–B Latch Enable (LEAB) input makes the A–to–B latches
transparent; a subsequent LOW–to–HIGH transition of the LEAB signal
will latch the A latches, and the outputs no longer change with the A
inputs. With EAB and OEAB both LOW, the 3–State B output buffers are
active and reflect the data present at the output of the A latches. Control
of data flow from B to A is symmetric to that above, but uses the EBA,
LEBA, and OEBA inputs.
DT SUFFIX
56–LEAD PLASTIC TSSOP PACKAGE
CASE 1202–01
• Designed for 2.7 to 3.6V V
CC
Operation
• 5.2ns 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
PIN NAMES
• LVTTL Compatible
Pins
Function
• LVCMOS Compatible
OExxn
Exxn
LExxn
A0–A15
B0–B15
Output Enable Inputs
Enable Inputs
Latch Enable Inputs
3–State Inputs/Outputs
3–State Inputs/Outputs
• 24mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current in All Three Logic States (20µA)
Substantially Reduces System Power Requirements
• Latchup Performance Exceeds 500mA
• ESD Performance: Human Body Model >2000V; Machine Model >200V
1/97
REV 0
Motorola, Inc. 1997
MC74LCX16543A
LOGIC DIAGRAM
Pinout: 56-Lead TSSOP
(Top View)
DETAIL A
D
52
B0
Q
OEAB1
LEAB1
EAB1
GND
A0
OEBA1
LEBA1
EBA1
GND
1
56
55
54
53
52
LE
2
D
LE
5
A0
3
Q
4
B0
5
A1
6
51 B1
DETAIL A x 7
V
V
CC
7
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
CC
A2
A3
B2
8
B3
9
A4
B4
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
56
1
OEBA1
OEAB1
EAB1
GND
A5
GND
B5
EBA1
54
3
2
LEAB1
LEBA1
55
A6
B6
A7
B7
A8
B8
DETAIL B
A9
B9
D
42
B8
A10
GND
A11
A12
A13
B10
GND
B11
B12
B13
Q
LE
D
LE
15
A8
Q
V
V
CC
CC
A14
A15
B14
B15
GND
DETAIL Bx 7
GND
EAB2 26
31 EBA2
29
28
LEAB2
OEAB2
LEBA2
OEBA2
27
28
30
29
OEBA2
EBA2
OEAB2
EAB2
31
26
27
LEAB2
LEBA2
30
MOTOROLA
2
MC74LCX16543A
FUNCTION TABLE
Inputs
EABn
Data Ports
Operating Mode
OEABn
OEBAn
EBAn
LEABn
LEBAn
An
Bn
Input
X
H
H
Input
X
L
X
L
X
L
X
L
X
X
Disable Outputs
X
Transparent Data; Outputs Disabled
Latch and Outputs Disabled
H
H
l
l
h
h
L
H
Input
Output
H
L
X*
X*
L
X
l
h
Z
Z
Load and B Outputs Disabled
H
L
X
X
X
Z
Hold; B Outputs Disabled
Transparent A to B
L
L
H
H
H
X
X
L
l
h
L
H
Latch and Display B Outputs
Load and A Outputs Disabled
H
L
Output
Input
X*
X*
H
L
Z
Z
l
h
X
X
H
L
Z
X
Hold; A Outputs DIsabled
Transparent B to A
L
L
H
H
X
H
L
l
Latch and Display A Outputs
H
h
H = High Voltage Level; h = High Voltage Level One Setup Time Prior to the Latch Enable or Enable Low–to–High Transition; L = Low VoltageLevel;
l = Low Voltage Level One Setup Time Prior to the Latch Enable or Enable Low–to–High Transition; X = Don’t Care; * = The latches are not internally
gated with the Output Enables. Therefore, data at the A or B ports may enter the latches at any time, provided that the LExx and Exx pins are set
accordingly. For I
reasons, Do Not Float Inputs.
CC
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
3
MOTOROLA
MC74LCX16543A
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
LOW Level Output Voltage
2.7V ≤ V
≤ 3.6V; I
= 100µA
0.2
0.4
V
OL
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
±5.0
±5.0
I
I
Input Leakage Current
3–State Output Current
2.7V ≤ V
≤ 3.6V; 0V ≤ V ≤ 5.5V
µA
µA
I
CC
I
2.7 ≤ V
≤ 3.6V; 0V ≤ V ≤ 5.5V;
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 per Input
2. These values of V are used to test DC electrical characteristics only.
Increase in I
2.7 ≤ V
≤ 3.6V; V = V
IH
– 0.6V
CC
CC
CC
CC
I
MOTOROLA
4
MC74LCX16543A
AC CHARACTERISTICS (t = t = 2.5ns; C = 50pF; R = 500Ω)
R
F
L
L
Limits
T
A
= –40°C to +85°C
V
= 3.0V to 3.6V
Max
V
= 2.7V
CC
CC
Symbol
Parameter
Waveform
Min
Min
Max
Unit
t
t
Propagation Delay
An to Bn or Bn to An
1
1.5
1.5
5.4
5.4
1.5
1.5
6.0
6.0
ns
PLH
PHL
t
t
Propagation Delay
LEBAn to An or LEABn to Bn
4
2
2
2
2
1.5
1.5
7.0
7.0
1.5
1.5
8.2
8.2
ns
ns
ns
ns
ns
PLH
PHL
t
t
Output Enable Time
OEBAn to An or OEABn to Bn
1.5
1.5
6.5
6.5
1.5
1.5
7.0
7.0
PZH
PZL
t
t
Output Disable Time
OEBAn to An or OEABn to Bn
1.5
1.5
6.5
6.5
1.5
1.5
7.0
7.0
PHZ
PLZ
t
t
Output Enable Time
EBAn to An or EABn to Bn
1.5
1.5
6.5
6.5
1.5
1.5
7.0
7.0
PZH
PZL
t
t
Output Disable Time
EBAn to An or EABn to Bn
1.5
1.5
6.5
6.5
1.5
1.5
7.0
7.0
PHZ
PLZ
t
t
t
t
t
Setup Time, HIGH to LOW Data to LExxn
Hold Time, HIGH to LOW Data to LExxn
Setup Time, HIGH to LOW Data to Exxn
Hold Time, HIGH to LOW Data to Exxn
Latch Enable or Enable Pulse Width, LOW
4
4
4
4
4
2.5
1.5
2.5
1.5
3.0
2.5
1.5
2.5
1.5
3.0
ns
ns
ns
ns
ns
ns
s
h
s
h
w
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
Input/Output Capacitance
= 3.3V, V = 0V or V
pF
I/O
PD
CC
I
Power Dissipation Capacitance
10MHz, V
= 3.3V, V = 0V or V
CC
20
pF
CC
I
5
MOTOROLA
MC74LCX16543A
2.7V
0V
An
or Bn
1.5V
t
, t
PLH PHL
V
OH
OL
Bn
or An
1.5V
V
WAVEFORM 1 – A/B to B/A PROPAGATION DELAYS
t
= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns
R
F
W
2.7V
OExxn
or Exxn
1.5V
1.5V
0V
t
t
PHZ
PZH
V
– 0.3V
OH
An
or Bn
1.5V
1.5V
≈
0V
t
t
PLZ
PZL
≈
3.0V
An
or Bn
V
+ 0.3V
OL
WAVEFORM 2 – OExx/Exx to A or B OUTPUT ENABLE AND DISABLE TIMES
t
= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns
R
F
W
Figure 1. AC Waveforms
MOTOROLA
6
MC74LCX16543A
2.7V
1.5V
0V
An
or Bn
t
w
t
t
s
h
NEGATIVE
PULSE
1.5V
1.5V
1.5V
1.5V
2.7V
t
Exxn
or LExxn
1.5V
1.5V
w
0V
t
, t
PLH PHL
V
POSITIVE
PULSE
OH
An
or Bn
1.5V
t
w
V
OL
WAVEFORM 3 – INPUT PULSE DEFINITION
WAVEFORM 4 – Enable to A or B PROPAGATION DELAYS, Enable MINIMUM
PULSE WIDTH, A or B to Enable SETUP AND HOLD TIMES
t
= t = 2.5ns, 10% to 90% of 0V to 2.7V
R
F
t
= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns except when noted
R
F W
Figure 2. AC Waveforms (continued)
V
CC
6V
OPEN
GND
R
1
PULSE
GENERATOR
DUT
R
C
R
L
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
L
R
L
R
T
= 50pF or equivalent (Includes jig and probe capacitance)
= R = 500Ω or equivalent
1
OUT
= Z
of pulse generator (typically 50Ω)
Figure 3. Test Circuit
7
MOTOROLA
MC74LCX16543A
OUTLINE DIMENSIONS
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 1202–01
ISSUE A
56X K REF
0.12 (0.005)
K
K1
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
M
S
S
T
U
V
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.
5. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
J
J1
56
29
28
SECTION N–N
B
L
–U–
N
1
6. DIMENSIONS A AND B ARE TO BE
DETERMINED AT DATUM PLANE –W–.
MILLIMETERS
INCHES
DIM
A
B
C
D
F
G
H
J
J1
K
MIN
13.90
6.00
–––
0.05
0.50
MAX
14.10
6.20
1.10
0.15
0.75
MIN
MAX
0.555
0.244
0.043
0.006
0.030
A
–V–
PIN 1
0.547
0.236
–––
0.002
0.020
IDENT.
N
M
F
0.50 BSC
0.0197 BSC
0.12
0.09
0.09
0.17
0.17
7.95
0
–––
0.20
0.16
0.27
0.23
8.25
8
0.005
0.004
0.004
0.007
0.007
0.313
0
–––
0.008
0.006
0.011
0.009
0.325
8
0.25 (0.010)
DETAIL E
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. 303–675–2140 or 1–800–441–2447
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51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
MC74LCX16543A/D
◊
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