74VCXH162244MTD [FAIRCHILD]
Low Voltage 16-Bit Buffer/Line Driver with Bushold and 26W Series Resistor in Outputs; 低电压16位缓冲器/线路与Bushold和26W串联电阻输出驱动器
| 型号： | 74VCXH162244MTD |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Low Voltage 16-Bit Buffer/Line Driver with Bushold and 26W Series Resistor in Outputs |
| 文件： | 总7页 (文件大小：80K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
January 2000
Revised March 2000
74VCXH162244
Low Voltage 16-Bit Buffer/Line Driver with Bushold
and 26Ω Series Resistor in Outputs
General Description
Features
■ 1.65V–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
■ 26Ω 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
3.8 ns max for 2.3V to 2.7V VCC
7.6 ns max for 1.65V to 1.95V VCC
The 74VCXH162244 is also designed with 26Ω series
resistors in the outputs. This design reduces line noise in
applications such as memory address drivers, clock driv-
ers, and bus transceivers/transmitters.
■ Static Drive (IOH/IOL
)
±12 mA @ 3.0V VCC
±8 mA @ 2.3V VCC
±3 mA @ 1.65V VCC
The 74VCXH162244 is designed for low voltage (1.65V to
3.6V) VCC applications with output capability up to 3.6V.
The 74VCXH162244 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
■ Uses patented noise/EMI reduction circuitry
■ Latch-up performance exceeds 300 mA
■ ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Package
Order Number
Package Description
Number
74VCXH162244MTD
MTD48
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
[TUBES]
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
© 2000 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 = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial (HIGH or LOW, inputs may not float)
Z = 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
1.65V 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
Output Current in IOH/IOL
−0.5V to VCC +0.5V
0V to VCC
)
0.0V to 3.6V
−50 mA
DC Output Diode Current (IOK
)
V
V
V
CC = 3.0V to 3.6V
CC = 2.3V to 2.7V
CC = 1.65V to 2.3V
±12 mA
±8 mA
VO < 0V
−50 mA
+50 mA
VO > VCC
±3mA
DC Output Source/Sink Current
(IOH/IOL
Free Air Operating Temperature (TA)
−40°C to +85°C
)
±50 mA
Minimum Input Edge Rate (∆t/∆V)
DC VCC or GND Current per
Supply Pin (ICC or GND)
V
IN = 0.8V to 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 Rat-
ings. The “Recommended Operating Conditions” table will define the condi-
tions for actual device operation.
±100 mA
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 (2.7V < V ≤ 3.6V)
CC
V
CC
Symbol
Parameter
Conditions
Min
Max
Units
(V)
2.7–3.6
2.7–3.6
2.7–3.6
2.7
V
V
V
HIGH Level Input Voltage
2.0
V
V
IH
LOW Level Input Voltage
HIGH Level Output Voltage
0.8
IL
I
I
I
I
I
I
I
I
= −100 µA
V − 0.2
CC
V
OH
OH
OH
OH
OH
OL
OL
OL
OL
= −6 mA
= −8 mA
= −12 mA
= 100 µA
= 6 mA
2.2
2.4
2.2
V
3.0
V
3.0
V
V
LOW Level Output Voltage
2.7–3.6
2.7
0.2
0.4
V
OL
V
= 8 mA
3.0
0.55
0.8
V
= 12 mA
3.0
V
I
I
I
I
Input Leakage Current
Control Pins
Data Pins
0 ≤ V ≤ 3.6V
2.7–3.6
2.7–3.6
3.0
±5.0
±5.0
µA
µA
I
I
V = V or GND
I
CC
Bushold Input Minimum
Drive Hold Current
V
V
= 0.8V
75
−75
450
−450
I(HOLD)
I(OD)
OZ
IN
IN
µA
µA
µA
= 2.0V
3.0
Bushold Input Over-Drive
Current to Change State
3-STATE Output Leakage
(Note 5)
(Note 6)
3.6
3.6
0 ≤ V ≤ 3.6V
O
2.7–3.6
±10
V = V or V
IL
I
IH
I
I
Power-OFF Leakage Current
Quiescent Supply Current
0 ≤ (V ) ≤ 3.6V
0
10
20
µA
µA
µA
µA
OFF
CC
O
V = V or GND
2.7–3.6
2.7–3.6
2.7–3.6
I
CC
V
V
≤ (V ) ≤ 3.6V (Note 7)
±20
750
CC
O
∆I
Increase in I per Input
= V −0.6V
IH 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.
3
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DC Electrical Characteristics (2.3V ≤ V
≤ 2.7V)
CC
V
CC
Symbol
Parameter
Conditions
Min
Max
Units
(V)
2.3–2.7
2.3–2.7
2.3–2.7
2.3
V
V
V
HIGH Level Input Voltage
1.6
V
V
IH
LOW Level Input Voltage
HIGH Level Output Voltage
0.7
IL
I
= −100 µA
V − 0.2
CC
V
OH
OH
I
= −4 mA
= −6 mA
= −8 mA
= 100 µA
= 6 mA
2.0
1.8
1.7
V
OH
I
2.3
V
OH
I
2.3
V
OH
V
LOW Level Output Voltage
Input Leakage Current
I
2.3–2.7
2.3
0.2
0.4
V
OL
OL
I
V
OL
I
= 8 mA
2.3
0.6
V
OL
I
Control Pins
Data Pins
0 ≤ V ≤ 3.6V
2.3–2.7
2.3–2.7
2.3
±5.0
±5.0
µA
µA
I
I
V = V or GND
I
CC
I
Bushold Input Minimum
Drive Hold Current
V
V
= 0.7V
45
−45
300
−300
I(HOLD)
IN
IN
µA
µA
µA
= 1.6V
2.3
I
Bushold Input Over-Drive
Current to Change State
3-STATE Output Leakage
(Note 8)
(Note 9)
2.7
I(OD)
2.7
I
0 ≤ V ≤ 3.6V
O
OZ
2.3–2.7
±10
V = V or V
IL
I
IH
I
Power-OFF Leakage Current
Quiescent Supply Current
0 ≤ (V ) ≤ 3.6V
0
10
20
µA
µA
µA
OFF
O
I
V = V or GND
2.3–2.7
2.3–2.7
CC
I
CC
V
≤ (V ) ≤ 3.6V (Note 10)
±20
CC
O
Note 8: An external driver must source at least the specified current to switch from LOW-to-HIGH.
Note 9: An external driver must sink at least the specified current to switch from HIGH-to-LOW.
Note 10: Outputs disabled or 3-STATE only.
DC Electrical Characteristics (1.65V ≤ V
< 2.3V)
CC
V
CC
Symbol
Parameter
Conditions
Min
Max
Units
(V)
1.65-2.3
1.65-2.3
1.65-2.3
1.65
V
V
V
HIGH Level Input Voltage
0.65 × V
V
V
IH
CC
LOW Level Input Voltage
HIGH Level Output Voltage
0.35 × V
IL
CC
I
= −100 µA
V − 0.2
CC
V
OH
OH
I
= −3 mA
= 100 µA
= 3mA
1.25
V
OH
V
LOW Level Output Voltage
Input Leakage Current
I
1.65-2.3
1.65
0.2
0.3
V
OL
OL
I
V
OL
I
Control Pins
Data Pins
0 ≤ V ≤ 3.6V
1.65-2.3
1.65-2.3
1.65
±5.0
±5.0
µA
µA
I
I
V = V or GND
I
CC
I
Bushold Input Minimum
Drive Hold Current
V
V
= 0.57V
25
−25
200
−200
I(HOLD)
IN
IN
µA
µA
µA
= 1.07V
1.65
I
Bushold Input Over-Drive
Current to Change State
3-STATE Output Leakage
(Note 11)
(Note 12)
1.95
I(OD)
1.95
I
0 ≤ V ≤ 3.6V
O
OZ
1.65-2.3
±10
V = V or V
IL
I
IH
I
Power-OFF Leakage Current
Quiescent Supply Current
0 ≤ (V ) ≤ 3.6V
0
10
20
µA
µA
µA
OFF
O
I
V = V or GND
1.65-2.3
1.65-2.3
CC
I
CC
V
≤ (V ) ≤ 3.6V (Note 13)
±20
CC
O
Note 11: An external driver must source at least the specified current to switch from LOW-to-HIGH.
Note 12: An external driver must sink at least the specified current to switch from HIGH-to-LOW.
Note 13: Outputs disabled or 3-STATE only.
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4
AC Electrical Characteristics (Note 14)
T
= −40°C to +85°C, C = 30 pF, R = 500Ω
A
L
L
Symbol
Parameter
V
= 3.3V ± 0.3V
V
= 2.5V ± 0.2V
V = 1.8V ± 0.15V
CC
Units
CC
CC
Min
0.8
0.8
0.8
Max
3.3
Min
1.0
1.0
1.0
Max
3.8
5.1
4.0
Min
1.5
1.5
1.5
Max
7.6
t
t
t
t
t
, t
Prop Delay
ns
ns
ns
PHL PLH
, t
Output Enable Time
Output Disable Time
Output to Output Skew
(Note 15)
3.8
3.6
9.8
PZL PZH
, t
7.2
PLZ PHZ
OSHL
OSLH
0.5
0.5
0.75
ns
Note 14: For C = 50 F, add approximately 300 ps to the AC maximum specification.
L
P
Note 15: 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
A
CC
Symbol
Parameter
Conditions
= 30 pF, V = V , V = 0V
Units
(V)
1.8
2.5
3.3
1.8
2.5
3.3
1.8
2.5
3.3
Typical
0.15
V
V
V
Quiet Output Dynamic Peak V
C
C
C
OLP
OL
L
L
L
IH
CC
IL
0.25
V
0.35
Quiet Output Dynamic Valley V
Quiet Output Dynamic Valley V
= 30 pF, V = V , V = 0V
−0.15
−0.25
−0.35
1.55
OLV
OL
IH
CC
IL
V
V
= 30 pF, V = V , V = 0V
OHV
OH
IH
CC
IL
2.05
2.65
Capacitance
T
= +25°C
A
Symbol
Parameter
Conditions
= 1.8, 2.5V or 3.3V, V = 0V or V
CC
Units
Typical
C
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
V
6
7
pF
pF
pF
IN
CC
I
C
C
V = 0V or V , V = 1.8V, 2.5V or 3.3V
I CC CC
OUT
PD
V = 0V or V , f = 10 MHz, V = 1.8V, 2.5V or 3.3V
20
I
CC
CC
5
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AC Loading and Waveforms
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
V
OL +0.3V
V
OL +0.15V
V
OL +0.15V
VY
V
OH −0.3V
V
OH −0.15V
VOH −0.15V
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6
Physical Dimensions inches (millimeters) unless otherwise noted
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-, 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.
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7
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