74LCXZ16245MTDX [ONSEMI]
带5V容差输入和输出的低电压16-位双向收发器;
| 型号： | 74LCXZ16245MTDX |
| 厂家： | 
ONSEMI |
| 描述： | 带5V容差输入和输出的低电压16-位双向收发器 光电二极管 逻辑集成电路 |
| 文件： | 总9页 (文件大小：198K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
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March 2002
Revised June 2005
74LCXZ16245
Low Voltage 16-Bit Bidirectional Transceiver
with 5V Tolerant Inputs and Outputs
General Description
Features
■ 5V tolerant inputs and outputs
The LCXZ16245 contains sixteen non-inverting bidirec-
tional buffers with 3-STATE outputs and is intended for bus
oriented applications. The device is designed for low volt-
age (2.7V or 3.3V) VCC applications with capability of inter-
■ 2.7V–3.6V VCC specifications provided
■ 4.5 ns tPD max (VCC 3.3V), 20 A ICC max
■ Power-down high impedance inputs and outputs
■ Supports live insertion/withdrawal (Note 1)
facing to a 5V signal environment. The device is byte
controlled. Each byte has separate control inputs which
could be shorted together for full 16-bit operation. The T/R
inputs determine the direction of data flow through the
device. The OE inputs disable both the A and B ports by
placing them in a high impedance state.
■
24 mA output drive (VCC 3.0V)
■ Implements patented noise/EMI reduction circuitry
■ Latch-up performance conforms to the requirements of
JESD78
When VCC is between 0V and 1.5V, the LCXZ16245 is on
■ ESD performance:
the high impedance state during power-up or power-down.
This places the outputs in the high impedance (Z) state
preventing intermittent low impedance loading or glitching
in bus oriented applications.
Human body model 2000V
Machine model 200V
Note 1: To ensure the high-impedance state during power up or down, OE
should be tied to V
through a pull-up resistor: the minimum value or the
The LCXZ16245 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing CMOS low power dissipation.
CC
resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Order Number
Package Number
Package Description
74LCXZ16245MTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
© 2005 Fairchild Semiconductor Corporation
DS500580
www.fairchildsemi.com
Connection Diagram
Pin Descriptions
Pin Names
Description
Output Enable Input
Transmit/Receive Input
Pin Assignment for SSOP and TSSOP
OEn
T/Rn
A0–A15
B0–B15
NC
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
No Connect
Truth Tables
Inputs
Outputs
OE1
T/R1
L
L
L
H
X
Bus B0–B7 Data to Bus A0–A7
Bus A0–A7 Data to Bus B0–B7
HIGH Z State on A0–A7, B0–B7
H
Inputs
Outputs
OE2
T/R2
L
L
L
H
X
Bus B8–B15 Data to Bus A8–A15
Bus A8–A15 Data to Bus B8–B15
HIGH Z State on A8–A15, B8–B15
H
H
L
X
Z
HIGH Voltage Level
LOW Voltage Level
Immaterial
High Impedance
Logic Diagram
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2
Absolute Maximum Ratings(Note 2)
Symbol
VCC
Parameter
Supply Voltage
Value
Conditions
Units
0.5 to 7.0
0.5 to 7.0
0.5 to 7.0
V
V
VI
DC Input Voltage
VO
DC Output Voltage
Output in 3-STATE
V
0.5 to VCC 0.5 Output in HIGH or LOW State (Note 3)
IIK
DC Input Diode Current
DC Output Diode Current
50
50
VI GND
VO GND
VO VCC
mA
mA
IOK
50
IO
DC Output Source/Sink Current
DC Supply Current per Supply Pin
DC Ground Current per Ground Pin
Storage Temperature
50
mA
mA
mA
C
ICC
100
IGND
TSTG
100
65 to 150
Recommended Operating Conditions (Note 4)
Symbol
VCC
Parameter
Min
2.7
0
Max
3.6
5.5
VCC
5.5
24
Units
Supply Voltage
Input Voltage
Output Voltage
Operating
V
V
VI
VO
HIGH or LOW State
3-STATE
0
V
0
IOH/IOL
Output Current
VCC 3.0V 3.6V
VCC 2.7V 3.0V
mA
12
TA
t/ V
Free-Air Operating Temperature
40
0
85
C
Input Edge Rate, VIN 0.8V–2.0V, VCC 3.0V
10
ns/V
Note 2: The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated
at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The “Recom-
mended Operating Conditions” table will define the conditions for actual device operation.
Note 3: I Absolute Maximum Rating must be observed.
O
Note 4: Unused inputs or I/O's must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
V
T
40 C to 85 C
Max
CC
A
Symbol
Parameter
Conditions
Units
(V)
2.7 3.6
2.7 3.6
2.7 3.6
2.7
Min
2.0
V
V
V
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
V
V
IH
0.8
IL
I
I
I
I
I
I
I
I
100
A
V
CC
0.2
OH
OH
OH
OH
OH
OL
OL
OL
OL
12 mA
18 mA
24 mA
2.2
2.4
2.2
V
V
3.0
3.0
V
LOW Level Output Voltage
100
A
2.7 3.6
2.7
0.2
0.4
0.4
0.55
5.0
OL
12 mA
16 mA
24 mA
3.0
3.0
I
I
Input Leakage Current
3-STATE I/O Leakage
0
0
V
V
V
5.5V
5.5V
2.7 3.6
2.7 3.6
A
A
A
A
I
I
5.0
OZ
O
V
or V
IL
I
IH
I
I
Power-Off Leakage Current
Power-Up/Power-Down
3-STATE Output Current
Quiescent Supply Current
V or V
5.5V
0.5V to V
CC
0
10
OFF
I
O
V
PU/PD
O
I
0 - 1.5
5.0
V
V
V
or GND
or GND
CC
CC
I
V
2.7–3.6
2.7–3.6
2.7–3.6
225
225
500
CC
I
A
A
3.6V V , V
5.5V (Note 5)
I
O
I
Increase in I per Input
V
V
CC
0.6V
CC
CC
IH
Note 5: Outputs disabled or 3-STATE only.
3
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AC Electrical Characteristics
T
40 C to 85 C, R
500
A
L
V
3.3V 0.3V
50 pF
V
2.7V
CC
CC
Symbol
Parameter
Units
C
C
50 pF
L
L
Min
1.0
1.0
1.0
1.0
1.0
1.0
Max
Min
1.0
1.0
1.0
1.0
1.0
1.0
Max
5.2
5.2
7.2
7.2
6.9
6.9
t
t
t
t
t
t
t
t
Propagation Delay
to B or B to A
4.5
4.5
6.5
6.5
6.4
6.4
1.0
1.0
PHL
ns
ns
ns
ns
A
PLH
n
n
n
n
Output Enable Time
PZL
PZH
PLZ
Output Disable Time
PHZ
OSHL
OSLH
Output to Output Skew (Note 6)
Note 6: 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
) or LOW-to-HIGH (t
). Parameter guaranteed by design.
OSLH
OSHL
Dynamic Switching Characteristics
V
T
25 C
CC
A
Symbol
Parameter
Conditions
Units
(V)
3.3
3.3
Typical
0.8
V
Quiet Output Dynamic Peak V
C
C
50 pF, V
50 pF, V
3.3V, V
3.3V, V
0V
0V
V
V
OLP
OL
L
IH
IL
IL
V
Quiet Output Dynamic Valley V
0.8
OLV
OL
L
IH
Capacitance
Symbol
Parameter
Conditions
Typical
Units
pF
C
Input Capacitance
Input/Output Capacitance
Power Dissipation Capacitance
V
V
V
Open, V 0V or V
CC
7
8
IN
CC
CC
CC
I
C
C
3.3V, V 0V or V
CC
pF
I/O
PD
I
3.3V, V 0V or V , f 10 MHz
20
pF
I
CC
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4
AC LOADING and WAVEFORMS Generic for LCX Family
FIGURE 1. AC Test Circuit (CL includes probe and jig capacitance)
Test
tPLH, tPHL
PZL, tPLZ
Switch
Open
t
6V at VCC 3.3 0.3V, and 2.7V
GND
tPZH, tPHZ
3-STATE Output High Enable and
Waveform for Inverting and Non-Inverting Functions
Disable Times for Logic
Setup Time, Hold Time and Recovery Time for Logic
Propagation Delay. Pulse Width and trec Waveforms
trise and tfall
3-STATE Output Low Enable and
Disable Times for Logic
FIGURE 2. Waveforms
(Input Characteristics; f =1MHz, tr = tf = 3ns)
VCC
Symbol
3.3V 0.3V
1.5V
2.7V
1.5V
Vmi
Vmo
Vx
1.5V
1.5V
VOL 0.3V
VOH 0.3V
VOL 0.3V
VOH 0.3V
Vy
5
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Schematic Diagram Generic for LCX Family
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6
Physical Dimensions inches (millimeters) unless otherwise noted
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Package Number MTD48
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
7
www.fairchildsemi.com
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor 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 ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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