74VCX162245MTD [FAIRCHILD]
Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26ヘ Series Resistors in A Port Outputs; 低电压16位双向收发器，具有3.6V容限输入和输出和26ヘ串联电阻的一个端口输出
| 型号： | 74VCX162245MTD |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26ヘ Series Resistors in A Port Outputs |
| 文件： | 总7页 (文件大小：57K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
October 1996
Revised April 1999
74VCX162245
Low Voltage 16-Bit Bidirectional Transceiver with 3.6V
Tolerant Inputs and Outputs and 26Ω Series Resistors in
A Port Outputs
General Description
Features
■ 1.65V–3.6V VCC supply operation
The VCX162245 contains sixteen non-inverting bidirec-
tional buffers with 3-STATE outputs and is intended for bus
oriented applications. The device is byte controlled. Each
byte has separate 3-STATE control inputs which can 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.
■ 3.6V tolerant inputs and outputs
■ 26Ω series resistors in A port outputs
■ tPD (B to A)
3.4 ns max for 3.0V to 3.6V VCC
4.3 ns max for 2.3V to 2.7V VCC
8.6 ns max for 1.65V to 1.95V VCC
The 74VCX162245 is designed for low voltage (1.65V to
3.6V) VCC applications with I/O compatibility up to 3.6V.
■ Power-down high impedance inputs and outputs
■ Supports live insertion/withdrawal (Note 1)
■ Static Drive (IOH/IOL A outputs)
The 74VCX162245 is also designed with 26Ω series resis-
tance in the A Port 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
±8 mA @ 2.3V VCC
±3 mA @ 1.65V VCC
The 74VCX162245 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
■ Latchup performance exceeds 300 mA
■ ESD performance:
Human body model > 2000V
Machine model >200V
Note 1: To ensure the high-impedance state during power up or power
down, OE should be tied to V
through a pull-up resistor; the minimum
CC
value of the resistor is determined by the current-sourcing capability of the
driver.
Ordering Code:
Order Number
Package Number
Package Description
74VCX162245MTD
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
Pin Descriptions
Pin
Names
OEn
Description
Output Enable Input
T/Rn
Transmit/Receive Input
A0–A15
B0–B15
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
© 1999 Fairchild Semiconductor Corporation
DS500048.prf
www.fairchildsemi.com
Connection Diagram
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 = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial (HIGH or LOW, inputs and I/O’s may not float)
Z = High Impedance
Logic Diagram
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2
Input Voltage
−0.3V to 3.6V
Absolute Maximum Ratings(Note 2)
Output Voltage (VO)
Supply Voltage (VCC
)
−0.5V to +4.6V
−0.5V to +4.6V
Output in Active States
Output in 3-STATE
0V to VCC
DC Input Voltage (VI)
Output Voltage (VO)
0.0V to 3.6V
Output Current in IOH/IOL-A Outputs
Outputs 3-State
−0.5V to +4.6V
−0.5 to VCC + 0.5V
−50 mA
V
V
V
CC = 3.0V to 3.6V
CC = 2.3V to 2.7V
CC = 1.65V to 1.95V
±12 mA
±8 mA
±3 mA
Outputs Active (Note 3)
DC Input Diode Current (IIK) VI < 0V
DC Output Diode Current (IOK
)
Output Current in ± IOH/IOL-B Outputs
V
V
O < 0V
−50 mA
+50 mA
V
V
V
CC = 3.0V to 3.6V
CC = 2.3V to 2.7V
CC = 1.65V to 2.3V
± 24mA
± 18mA
O > VCC
DC Output Source/Sink Current
(IOH/IOL
±6mA
)
±50 mA
Free Air Operating Temperature (TA)
−40°C to +85°C
DC VCC or Ground Current per
Supply Pin (ICC or Ground)
Minimum Input Edge Rate (∆t/∆V)
±100 mA
V
IN = 0.8V to 2.0V, VCC = 3.0V
10 ns/V
Storage Temperature Range (TSTG
)
−65°C to +150°C
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 tables will define the condi-
tions for actual device operation.
Recommended Operating
Conditions (Note 4)
Power Supply
Operating
Note 3: I Absolute Maximum Rating must be observed.
O
1.65V to 3.6V
1.2V to 3.6V
Note 4: Floating or unused pins (inputs or I/O's) must be held HIGH or
LOW.
Data Retention Only
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
LOW Level Input Voltage
HIGH Level Output Voltage
A Outputs
2.0
V
V
IH
0.8
IL
I
I
I
I
= −100 µA
= −6 mA
= −8 mA
= −12 mA
= −100 µA
= −12 mA
= −18 mA
= −24 mA
= 100 µA
= 6 mA
V
V
− 0.2
CC
OH
OH
OH
OH
OH
2.2
2.4
2.2
V
V
V
V
3.0
3.0
HIGH Level Output Voltage
B Outputs
I
2.7–3.6
2.7
− 0.2
CC
OH
I
I
I
I
I
I
I
I
I
I
I
2.2
2.4
2.2
OH
OH
OH
OL
OL
OL
OL
OL
OL
OL
OL
3.0
3.0
V
LOW Level Output Voltage
A Outputs
2.7–3.6
2.7
0.2
0.4
OL
= 8 mA
3.0
0.55
0.8
= 12 mA
= 100 µA
= 12 mA
= 18 mA
= 24 mA
3.0
LOW Level Output Voltage
B Outputs
2.7–3.6
2.7
0.2
0.4
3.0
0.4
3.0
0.55
±5.0
±10
I
I
Input Leakage Current
0V ≤ V ≤ 3.6V
2.7–3.6
2.7–3.6
µA
µA
I
I
3-STATE Output Leakage
0V ≤ V ≤ 3.6V
O
OZ
V = V or V
IL
I
IH
I
I
Power Off Leakage Current
Quiescent Supply Current
0V ≤ (V , V ) ≤ 3.6V
0
10
20
µA
µA
µA
OFF
CC
I
O
V = V or GND
2.7–3.6
2.7–3.6
2.7–3.6
I
CC
V
V
≤ (V , V ) ≤ 3.6V (Note 5)
±20
750
CC
I
O
∆I
Increase in I per Input
= V − 0.6V
IH CC
CC
CC
Note 5: Outputs disabled or 3-STATE only.
3
www.fairchildsemi.com
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
LOW Level Input Voltage
HIGH Level Output Voltage
A Outputs
1.6
V
V
IH
0.7
IL
I
= −100 µA
= −4 mA
= −6 mA
= −8 mA
= −100 µA
= −6 mA
= −12 mA
= −18 mA
= 100 µA
= 6 mA
V
V
− 0.2
CC
OH
OH
I
2.0
1.8
1.7
OH
V
V
I
2.3
OH
I
2.3
OH
HIGH Level Output Voltage
B Outputs
I
2.3–2.7
2.3
− 0.2
CC
OH
I
2.0
1.8
1.7
OH
I
2.3
OH
I
2.3
OH
V
LOW Level Output Voltage
A Outputs
I
2.3–2.7
2.3
0.2
0.4
OL
OL
I
V
V
OL
I
= 8 mA
2.3
0.6
OL
LOW Level Output Voltage
B Outputs
I
= 100 µA
= 12 mA
= 18 mA
2.3–2.7
2.3
0.2
OL
I
0.4
0.6
±5.0
±10
OL
I
2.3
OL
I
I
Input Leakage Current
0 ≤ V ≤ 3.6V
2.3–2.7
2.3–2.7
µA
µA
I
I
3-STATE Output Leakage
0 ≤ V ≤ 3.6V
O
OZ
V = V or V
IL
I
IH
I
I
Power Off Leakage Current
Quiescent Supply Current
0 ≤ (V , V ) ≤ 3.6V
0
10
20
µA
µA
OFF
CC
I
O
V = V or GND
2.3–2.7
2.3–2.7
I
CC
V
≤ (V , V ) ≤ 3.6V (Note 6)
±20
CC
I
O
Note 6: Outputs disabled or 3-STATE only.
DC Electrical Characteristics (1.65V ≤ V < 2.3V)
CC
V
CC
Symbol
Parameter
Conditions
Min
Max
Units
(V)
V
V
V
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
A Outputs
1.65-2.3
1.65-2.3
1.65-2.3
1.65
0.65 × V
V
V
IH
CC
0.35 × V
IL
CC
I
= −100 µA
= −3 mA
= −100 µA
= −6 mA
= 100 µA
= 3 mA
V
V
− 0.2
OH
OH
CC
V
V
V
I
1.4
OH
HIGH Level Output Voltage
B Outputs
I
1.65-2.3
1.65
− 0.2
OH
CC
I
1.25
OH
V
LOW Level Output Voltage
A Outputs
I
1.65-2.3
1.65
0.2
0.3
OL
OL
I
OL
LOW Level Output Voltage
B Outputs
I
= 100 µA
= 6 mA
1.65-2.3
1.65
0.2
OL
V
I
0.3
OL
I
I
Input Leakage Current
3-STATE Output Leakage
0 ≤ V ≤ 3.6V
1.65-2.3
1.65-2.3
±5.0
±10
µA
µA
µA
µA
I
I
0 ≤ V ≤ 3.6V
OZ
O
V = V or V
IL
I
IH
I
I
Power Off Leakage Current
Quiescent Supply Current
0 ≤ (V , V ) ≤ 3.6V
0
10
20
OFF
CC
I
O
V = V or GND
1.65-2.3
1.65-2.3
I
CC
V
≤ (V , V ) ≤ 3.6V (Note 7)
±20
CC
I
O
Note 7: Outputs disabled or 3-STATE only.
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4
AC Electrical Characteristics (Note 8)
T
= −40°C to +85°C, C = 30 pF, R = 500Ω
A
L
L
V
= 3.3V ± 0.3V
V
= 2.5 ± 0.2V
V = 1.8V ± 0.15
CC
Symbol
Parameter
Units
CC
CC
Min
0.8
0.8
0.8
0.8
0.8
0.8
Max
2.5
3.4
3.8
4.2
3.7
4.1
0.5
Min
1.0
1.0
1.0
1.0
1.0
1.0
Max
3.0
4.3
4.9
5.7
4.2
4.8
0.5
Min
1.5
1.5
1.5
1.5
1.5
1.5
Max
6.0
t
t
t
t
t
t
t
t
, t
Prop Delay, A to B
ns
ns
ns
ns
ns
ns
ns
PHL PLH
, t
Prop Delay, B to A
8.6
PHL PLH
, t
Output Enable Time, A to B
Output Enable Time, B to A
Output Disable Time, A to B
Output Disable Time, B to A
Output to Output
9.3
PZL PZH
, t
9.8
PZL PZH
, t
7.6
PLZ PHZ
, t
8.6
PLZ PHZ
0.75
OSHL
OSLH
Skew (Note 9)
Note 8: For C = 50pF, add approximately 300ps to the AC maximum specification.
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
T
= +25°C
V
(V)
A
CC
Symbol
Parameter
Conditions
= 30 pF, V = V , V = 0V
Units
Typical
V
V
V
V
V
V
Quiet Output Dynamic
C
C
C
C
C
C
1.8
2.5
3.3
0.25
0.6
0.8
OLP
L
L
L
L
L
L
IH
CC
IL
Peak V , A to B
OL
V
Quiet Output Dynamic
= 30 pF, V = V , V = 0V
1.8
2.5
3.3
0.15
0.25
0.35
OLP
OLV
OLV
OHV
OHV
IH
CC
IL
Peak V , B to A
V
V
V
V
V
OL
Quiet Output Dynamic
Valley V , A to B
= 30 pF, V = V , V = 0V
1.8
2.5
3.3
−0.25
−0.6
−0.8
IH
CC
IL
OL
Quiet Output Dynamic
Valley V , B to A
= 30 pF, V = V , V = 0V
1.8
2.5
3.3
0.15
−0.25
−0.35
IH
CC
IL
OL
Quiet Output Dynamic
Valley V , A to B
= 30 pF, V = V , V = 0V
1.8
2.5
3.3
1.5
1.9
2.2
IH
CC
IL
OH
Quiet Output Dynamic
Valley V , B to A
= 30 pF, V = V , V = 0V
1.8
2.5
3.3
1.55
2.05
2.65
IH
CC
IL
OH
Capacitance
T
= +25°C
Symbol
Parameter
Conditions
= 1.8V, 2.5V, or 3.3V, V = 0V or V
CC
Units
A
C
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
V
6
7
pF
pF
IN
CC
I
C
C
V = 0V, or V , V = 1.8V, 2.5V or 3.3V
I CC CC
I/O
PD
V = 0V or V , f = 10 MHz
I
CC
20
pF
V
= 1.8V, 2.5V or 3.3V
CC
5
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AC Loading and Waveforms
FIGURE 1. AC Test Circuit
SWITCH
TEST
tPLH, tPHL
tPZL, tPLZ
Open
6V at VCC = 3.3 ± 0.3V;
VCC x 2 at VCC = 2.5 ± 0.2V; 1.8V ± 0.15V
tPZH, tPHZ
GND
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-153, 6.1mm Wide
Package Number MTD48
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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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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