74VCXH162244_05 [FAIRCHILD]
Low Voltage 16-Bit Buffer/Line Driver with Bushold and 26ohm Series Resistor in Outputs; 低电压16位缓冲器/线路与Bushold和26ohm串联电阻输出驱动器
| 型号： | 74VCXH162244_05 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Low Voltage 16-Bit Buffer/Line Driver with Bushold and 26ohm Series Resistor in Outputs |
| 文件： | 总8页 (文件大小：139K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
January 2000
Revised June 2005
74VCXH162244
Low Voltage 16-Bit Buffer/Line Driver with Bushold
and 26: Series Resistor in Outputs
General Description
Features
■ 1.4V to 3.6V VCC supply operation
The VCXH162244 contains sixteen non-inverting buffers
with 3-STATE outputs to be employed as a memory and
address driver, clock driver, or bus oriented transmitter/
receiver. The device is nibble (4-bit) controlled. Each nibble
has separate 3-STATE control inputs which can be shorted
together for full 16-bit operation.
■ 3.6V tolerant control inputs and outputs
■ Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
■ 26 series resistors in outputs
■ tPD
The VCXH162244 data inputs include active bushold cir-
cuitry, eliminating the need for external pull-up resistors to
hold unused or floating data inputs at a valid logic level
3.3 ns max for 3.0V to 3.6V VCC
■ Static Drive (IOH/IOL
)
The 74VCXH162244 is also designed with 26 series
resistors in the outputs. This design reduces line noise in
applications such as memory address drivers, clock driv-
ers, and bus transceivers/transmitters.
12 mA @ 3.0V VCC
■ Uses patented noise/EMI reduction circuitry
■ Latch-up performance exceeds 300 mA
■ ESD performance:
The 74VCXH162244 is designed for low voltage (1.4V to
3.6V) VCC applications with output capability up to 3.6V.
Human body model 2000V
The 74VCXH162244 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Machine model 200V
Ordering Code:
Package
Order Number
Package Description
Number
74VCXH162244MTD
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
[TUBES]
MTD48
MTD48
74VCXH162244MTX
(Note 1)
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
[TAPE and REEL]
Note 1: Use this Order Number to receive devices in Tape and Reel.
Logic Symbol
Pin Descriptions
Pin Names
Description
OEn
Output Enable Input (Active LOW)
Bushold Inputs
I0–I15
O0–O15
Outputs
© 2005 Fairchild Semiconductor Corporation
DS500231
www.fairchildsemi.com
Connection Diagram
Truth Tables
Inputs
Outputs
OE1
L
I0–I3
L
O0–O3
L
H
Z
L
H
H
X
Inputs
OE2
Outputs
O4–O7
I4–I7
L
L
L
H
X
L
H
Z
H
Inputs
OE3
Outputs
O8–O11
I8–I11
L
L
L
H
X
L
H
Z
H
Inputs
OE4
Outputs
O12–O15
I12–I15
L
L
L
H
X
L
H
Z
H
H
L
HIGH Voltage Level
LOW Voltage Level
X
Z
Immaterial (HIGH or LOW, inputs may not float)
High Impedance
Functional Description
The 74VCXH162244 contains sixteen non-inverting buffers with 3-STATE outputs. The device is nibble (4 bits) controlled
with each nibble functioning identically, but independent of each other. The control pins may be shorted together to obtain
full 16-bit operation.The 3-STATE outputs are controlled by an Output Enable (OEn) input. When OEn is LOW, the outputs
are in the 2-state mode. When OEn is HIGH, the standard outputs are in the high impedance mode but this does not inter-
fere with entering new data into the inputs.
Logic Diagram
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2
Absolute Maximum Ratings(Note 2)
Recommended Operating
Conditions (Note 4)
Supply Voltage (VCC
)
0.5V to 4.6V
DC Input Voltage (VI)
OEn
Power Supply
0.5V to 4.6V
Operating
1.4V to 3.6V
1.2V to 3.6V
0.3V to VCC
I0 – I15
0.5V to VCC 0.5V
Data Retention Only
Input Voltage
Output Voltage (VO)
Outputs 3-STATE
Outputs Active (Note 3)
DC Input Diode Current (IIK
VI 0V
0.5V to 4.6V
Output Voltage (VO)
Output in Active States
Output in 3-STATE
0.5V to VCC 0.5V
0V to VCC
)
0.0V to 3.6V
50 mA
Output Current in IOH/IOL
VCC 3.0V to 3.6V
DC Output Diode Current (IOK
VO 0V
)
12 mA
8 mA
50 mA
50 mA
VCC 2.3V to 2.7V
VO VCC
VCC 1.65V to 2.3V
VCC 1.4V to 1.6V
3 mA
DC Output Source/Sink Current
(IOH/IOL
2 mA
)
50 mA
Free Air Operating Temperature (TA)
Minimum Input Edge Rate ( t/ V)
VIN 0.8V to 2.0V, VCC 3.0V
40 C to 85 C
DC VCC or GND Current per
Supply Pin (ICC or GND)
100 mA
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 Rat-
ings. The “Recommended Operating Conditions” table will define the condi-
tions for actual device operation.
Storage Temperature Range (TSTG
)
65 C to 150 C
Note 3: I Absolute Maximum Rating must be observed.
O
Note 4: Floating or unused control inputs must be held HIGH or LOW.
DC Electrical Characteristics
V
CC
Symbol
Parameter
HIGH Level Input Voltage
Conditions
Min
Max
Units
(V)
V
V
V
2.7 - 3.6
2.3 - 2.7
2.0
1.6
IH
V
1.65 - 2.3 0.65
V
V
CC
1.4 - 1.6
2.7 - 3.6
2.3 - 2.7
1.65 - 2.3
1.4 - 1.6
2.7 - 3.6
2.7
0.65
CC
LOW Level Input Voltage
HIGH Level Output Voltage
0.8
0.7
IL
V
0.35
0.35
V
V
CC
CC
I
I
I
I
I
I
I
I
I
I
I
I
100
A
V
- 0.2
CC
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
6 mA
8 mA
2.2
3.0
2.4
2.2
12 mA
3.0
100
A
2.3 - 2.7
2.3
V
- 0.2
CC
4 mA
6 mA
8 mA
100
2.0
1.8
1.7
V
2.3
2.3
A
A
1.65 - 2.3
1.65
V
- 0.2
CC
3 mA
100
1.25
- 0.2
1.4 - 1.6
1.4
V
CC
1 mA
1.05
3
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DC Electrical Characteristics (Continued)
V
CC
Symbol
Parameter
Conditions
Min
Max
Units
(V)
2.7 - 3.6
2.7
V
LOW Level Output Voltage
I
100
A
0.2
0.4
0.55
0.8
0.2
0.4
0.6
0.2
0.3
0.2
0.35
5.0
5.0
OL
OL
I
6 mA
8 mA
12 mA
OL
I
3.0
OL
I
3.0
OL
I
100
A
2.3 - 2.7
2.3
OL
I
6 mA
8 mA
100
V
OL
I
2.3
OL
I
A
A
1.65 - 2.3
1.65
1.4 - 1.6
1.4
OL
I
3 mA
100
OL
I
OL
I
1 mA
OL
I
Input Leakage Current
Control Pins
Data Pins
0
V
3.6V
V or GND
CC
1.4 - 3.6
1.4 - 3.6
3.0
I
I
A
A
V
V
V
V
V
V
V
I
I
Bushold Input Minimum
Drive Hold Current
0.8V
2.0V
0.7V
1.6V
0.57V
1.07V
75
75
I(HOLD)
IN
IN
IN
IN
IN
IN
3.0
2.3
45
2.3
45
1.65
1.65
3.6
25
25
I
Bushold Input Over-Drive
Current to Change State
(Note 5)
(Note 6)
(Note 5)
(Note 6)
(Note 5)
(Note 6)
450
450
300
300
200
200
I(OD)
3.6
2.7
A
A
2.7
1.95
1.95
I
3-STATE Output Leakage
0
V
3.6V
or V
OZ
O
2.7 - 3.6
10.0
V
V
IH
I
IL
I
Power-OFF Leakage Current
Quiescent Supply Current
0
(V
V
)
3.6V
0
10.0
20.0
20.0
750
A
A
A
A
OFF
O
I
V
V
V
or GND
2.7 - 3.6
2.7 - 3.6
2.7 - 3.6
CC
I
CC
(V
)
O
3.6V (Note 7)
0.6V
CC
IH
I
Increase in I per Input
V
CC
CC
CC
Note 5: An external driver must source at least the specified current to switch from LOW-to-HIGH.
Note 6: An external driver must sink at least the specified current to switch from HIGH-to-LOW.
Note 7: Outputs disabled or 3-STATE only.
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4
AC Electrical Characteristics (Note 8)
V
T
40 C to 85 C
Figure
CC
A
Symbol
Parameter
Propagation Delay
Conditions
Units
(V)
Min
Max
3.3
Number
t
t
C
30 pF, R
500
3.3 0.3
2.5 0.2
1.8 0.15
1.5 0.1
0.8
1.0
1.5
1.0
PHL
PLH
L
L
Figures
1, 2
3.8
ns
7.6
C
C
30 pF, R
30 pF, R
500
500
15.2
Figures
5, 6
L
L
t
t
Output Enable Time
Output Disable Time
3.3 0.3
2.5 0.2
1.8 0.15
1.5 0.1
0.8
1.0
1.5
1.0
3.8
5.1
PZL
PZH
L
L
Figures
1, 3, 4
ns
9.8
C
C
30 pF, R
30 pF, R
500
500
19.6
Figures
5, 7, 8
L
L
t
t
3.3 0.3
2.5 0.2
1.8 0.15
1.5 0.1
0.8
1.0
1.5
1.0
3.6
4.0
PLZ
PHZ
L
L
Figures
1, 3, 4
ns
ns
7.2
14.4
Figures
5, 7, 8
t
t
Output-to-Output Skew
(Note 9)
C
C
30 pF, R
30 pF, R
500
500
3.3 0.3
2.5 0.2
1.8 0.15
1.5 0.1
0.5
0.5
OSHL
OSLH
L
L
0.75
1.5
L
L
Note 8: For C
50 F, add approximately 300 ps to the AC maximum specification.
P
L
Note 9: 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
).
OSLH
OSHL
Dynamic Switching Characteristics
V
T
25 C
Typical
CC
A
Symbol
Parameter
Conditions
Units
(V)
1.8
2.5
3.3
1.8
2.5
3.3
1.8
2.5
3.3
V
V
V
Quiet Output Dynamic Peak V
C
C
C
30 pF, V
30 pF, V
30 pF, V
V
V
V
, V
, V
, V
0V
0V
0V
0.15
0.25
0.35
0.15
0.25
0.35
1.55
2.05
2.65
OLP
OL
L
L
L
IH
IH
IH
CC
CC
CC
IL
IL
IL
V
Quiet Output Dynamic Valley V
Quiet Output Dynamic Valley V
OLV
OL
V
V
OHV
OH
Capacitance
T
25 C
A
Symbol
Parameter
Conditions
1.8, 2.5V or 3.3V, V 0V or V
CC
Units
Typical
6.0
C
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
V
pF
pF
pF
IN
CC
I
C
C
V
V
0V or V , V
CC
1.8V, 2.5V or 3.3V
7.0
OUT
PD
I
I
CC
0V or V , f 10 MHz, V
CC
1.8V, 2.5V or 3.3V
20.0
CC
5
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AC Loading and Waveforms (V 3.3V r 0.3V to 1.8V r 0.15V)
CC
TEST
SWITCH
tPLH, tPHL
Open
tPZL, tPLZ
6V at VCC 3.3 0.3V;
VCC x 2 at VCC 2.5 0.2V; 1.8 0.15V
tPZH, tPHZ
GND
FIGURE 1. AC Test Circuit
FIGURE 2. Waveform for Inverting and Non-Inverting Functions
FIGURE 3. 3-STATE Output High Enable and Disable Times for Low Voltage Logic
FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic
VCC
Symbol
3.3V 0.3V
1.5V
2.5V 0.2V
VCC/2
1.8V 0.15V
VCC/2
Vmi
Vmo
VX
1.5V
VCC/2
VCC/2
VOL 0.3V
VOH 0.3V
VOL 0.15V
VOH 0.15V
VOL 0.15V
VOH 0.15V
VY
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6
AC Loading and Waveforms (V 1.5V r 0.1V)
CC
TEST
SWITCH
tPLH, tPHL
Open
VCC x 2 at VCC 1.5V 0.1V
GND
t
PZL, tPLZ
tPZH, tPHZ
FIGURE 5. AC Test Circuit
FIGURE 6. Waveform for Inverting and Non-Inverting Functions
FIGURE 7. 3-STATE Output High Enable and Disable Times for Low Voltage Logic
FIGURE 8. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic
VCC
Symbol
1.5V 0.1V
Vmi
Vmo
VX
VCC/2
VCC/2
VOL 0.1V
VOH 0.1V
VY
7
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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.
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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.
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8
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