74VCX32245GX [FAIRCHILD]
Low Voltage 32-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs (Preliminary); 低电压32位双向收发器，具有3.6V容限输入和输出（初步）
| 型号： | 74VCX32245GX |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Low Voltage 32-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs (Preliminary) |
| 文件： | 总7页 (文件大小：73K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Preliminary
August 2001
Revised August 2001
74VCX32245
Low Voltage 32-Bit Bidirectional Transceiver
with 3.6V Tolerant Inputs and Outputs (Preliminary)
General Description
Features
■ 1.65V–3.6V VCC supply operation
The VCX32245 contains thirty-two 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 32-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
■ tPD
2.5 ns max for 3.0V to 3.6V VCC
3.0 ns max for 2.3V to 2.7V VCC
6.0 ns max for 1.65V to 1.95V VCC
■ Power-down high impedance inputs and outputs
■ Supports live insertion/withdrawal (Note 1)
The 74VCX32245 is designed for low voltage (1.65V to
3.6V) VCC applications with I/O compatibility up to 3.6V.
The 74VCX32245 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
■ Static Drive (IOH/IOL)
±24 mA @ 3.0V VCC
±18 mA @ 2.3V VCC
±6 mA @ 1.65V VCC
■ Uses patented noise/EMI reduction circuitry
■ Latchup performance exceeds 300 mA
■ ESD performance:
Human body model > 2000V
Machine model >200V
■ Packaged in plastic Fine-Pitch Ball Grid Array (FBGA)
Note 1: To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pull-up resistor; the minimum
value of the resistor is determined by the current-sourcing capability of the
driver.
Ordering Code:
Order Number Package Number
Package Description
74VCX32245GX
(Note 2)
BGA96A
96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
[Tape and Reel]
Note 2: BGA package available in Tape and Reel only.
Logic Symbol
© 2001 Fairchild Semiconductor Corporation
DS500415
www.fairchildsemi.com
Preliminary
Connection Diagram
Pin Descriptions
Pin Names
Description
OEn
Output Enable Input (Active LOW)
Transmit/Receive Input
T/Rn
A0–A31
B0–B31
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
FBGA Pin Assignments
1
2
3
4
5
6
A
B
C
D
E
F
B1
B3
B0
B2
T/R1
OE1
A0
A2
A1
A3
GND GND
VCC VCC
B5
B4
A4
A5
B7
B6
GND GND
GND GND
A6
A7
B9
B8
A8
A9
B11
B13
B10
B12
VCC
VCC
A10
A12
A11
A13
G
GND GND
(Top Thru View)
H
B14
B15
T/R2
T/R3
OE2
OE3
A15
A14
Truth Tables
J
K
L
B17
B19
B21
B23
B25
B27
B29
B16
B18
B20
B22
B24
B26
B28
A16
A18
A20
A22
A24
A26
A28
A17
A19
A21
A23
A25
A27
A29
GND GND
VCC VCC
Inputs
Outputs
OE1
T/R1
M
N
P
R
GND GND
GND GND
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
VCC
GND GND
T/R4 OE4
VCC
H
Inputs
OE2 T/R2
T
B30
B31
A31
A30
Outputs
L
L
H
L
Bus B8–B15 Data to Bus A8–A15
Bus A8–A15 Data to Bus B8–B15
HIGH Z State on A8–A15, B8–B15
Logic Diagram
H
X
Inputs
OE3 T/R3
Outputs
L
L
L
H
X
Bus B16–B23 Data to Bus A16–A23
Bus A16–A23 Data to Bus B16–B23
HIGH Z State on A16–A23, B16–B23
H
Inputs
Outputs
OE4
T/R4
L
L
L
H
X
Bus B24–B31 Data to Bus A24–A31
Bus A24–A31 Data to Bus B24–B31
HIGH Z State on A24–A31, B24–B31
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
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2
Preliminary
Absolute Maximum Ratings(Note 3)
Recommended Operating
Conditions (Note 5)
Supply Voltage (VCC
)
−0.5V to +4.6V
−0.5V to +4.6V
DC Input Voltage (VI)
Power Supply
Output Voltage (VO)
Operating
1.65V to 3.6V
1.2V to 3.6V
−0.3V to 3.6V
Outputs 3-STATE
−0.5V to +4.6V
−0.5 to VCC + 0.5V
−50 mA
Data Retention Only
Input Voltage
Outputs Active (Note 4)
DC Input Diode Current (IIK) VI < 0V
Output Voltage (VO)
Output in Active States
Output in 3-STATE
Output Current in IOH/IOL
DC Output Diode Current (IOK
)
0V to VCC
V
V
O < 0V
−50 mA
+50 mA
0.0V to 3.6V
O > VCC
DC Output Source/Sink Current
(IOH/IOL
V
V
V
CC = 3.0V to 3.6V
CC = 2.3V to 2.7V
CC = 1.65V to 2.3V
±24 mA
±18 mA
)
±50 mA
DC VCC or Ground Current per
Supply Pin (ICC or Ground)
±6 mA
±100 mA
Free Air Operating Temperature (TA)
−40°C to +85°C
Storage Temperature Range (TSTG
)
−65°C to +150°C
Minimum Input Edge Rate (∆t/∆V)
V
IN = 0.8V to 2.0V, VCC = 3.0V
10 ns/V
Note 3: 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” table are not guaranteed at the Absolute Maximum Rat-
ings. The Recommended Operating Conditions tables will define the condi-
tions for actual device operation.
Note 4: IO Absolute Maximum Rating must be observed.
Note 5: Floating or unused pin (inputs or I/O's) must be held HIGH or LOW.
DC Electrical Characteristics (2.7V < VCC ≤ 3.6V)
VCC
Symbol
Parameter
Conditions
Min
Max
Units
(V)
2.7–3.6
2.7–3.6
2.7–3.6
2.7
VIH
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
2.0
V
V
VIL
0.8
VOH
I
I
I
I
I
I
I
I
OH = −100 µA
OH = −12 mA
OH = −18 mA
OH = −24 mA
OL = 100 µA
OL = 12 mA
OL = 18 mA
OL = 24 mA
V
CC − 0.2
2.2
V
V
3.0
2.4
3.0
2.2
VOL
LOW Level Output Voltage
2.7–3.6
2.7
0.2
0.4
3.0
0.4
3.0
0.55
±5.0
II
Input Leakage Current
0V ≤ VI ≤ 3.6V
2.7–3.6
µA
µA
µA
µA
µA
IOZ
3-STATE Output Leakage
0V ≤ VO ≤ 3.6V
VI = VIH or VIL
2.7–3.6
±10
IOFF
ICC
Power Off Leakage Current
Quiescent Supply Current
0V ≤ (VI, VO) ≤ 3.6V
VI = VCC or GND
0
10
40
2.7–3.6
2.7–3.6
2.7–3.6
V
CC ≤ (VI, VO) ≤ 3.6V (Note 6)
IH = VCC − 0.6V
±40
750
∆ICC
Increase in ICC per Input
V
Note 6: Outputs disabled or 3-STATE only.
3
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Preliminary
DC Electrical Characteristics (2.3V ≤ VCC ≤ 2.7V)
VCC
Symbol
Parameter
Conditions
Min
Max
Units
(V)
2.3–2.7
2.3–2.7
2.3–2.7
2.3
VIH
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
1.6
V
V
VIL
0.7
VOH
I
OH = −100 µA
OH = −6 mA
OH = −12 mA
OH = −18 mA
OL = 100 µA
OL = 12 mA
OL = 18 mA
V
CC − 0.2
2.0
I
V
I
2.3
1.8
I
2.3
1.7
VOL
LOW Level Output Voltage
I
2.3–2.7
2.3
0.2
0.4
I
V
I
2.3
0.6
II
Input Leakage Current
0 ≤ VI ≤ 3.6V
0 ≤ VO ≤ 3.6V
VI = VIH or VIL
2.3–2.7
±5.0
µA
µA
µA
µA
IOZ
3-STATE Output Leakage
2.3–2.7
±10
IOFF
ICC
Power Off Leakage Current
Quiescent Supply Current
0 ≤ (VI, VO) ≤ 3.6V
VI = VCC or GND
0
10
40
2.3–2.7
2.3–2.7
VCC ≤ (VI, VO) ≤ 3.6V (Note 7)
±40
Note 7: Outputs disabled or 3-STATE only.
DC Electrical Characteristics (1.65V ≤ VCC < 2.3V)
VCC
Symbol
Parameter
Conditions
Min
Max
Units
(V)
VIH
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
1.65-2.3
1.65-2.3
1.65-2.3
1.65
0.65 × VCC
V
V
VIL
0.35 × VCC
VOH
I
OH = −100 µA
OH = −6 mA
OL = 100 µA
OL = 6 mA
V
CC − 0.2
V
I
1.25
VOL
LOW Level Output Voltage
I
1.65-2.3
1.65
0.2
0.3
V
I
II
Input Leakage Current
0 ≤ VI ≤ 3.6V
0 ≤ VO ≤ 3.6V
VI = VIH or VIL
1.65-2.3
±5.0
µA
µA
µA
µA
IOZ
3-STATE Output Leakage
1.65-2.3
±10
IOFF
ICC
Power Off Leakage Current
Quiescent Supply Current
0 ≤ (VI, VO) ≤ 3.6V
VI = VCC or GND
0
10
40
1.65-2.3
1.65-2.3
VCC ≤ (VI, VO) ≤ 3.6V (Note 8)
±40
Note 8: Outputs disabled or 3-STATE only.
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4
Preliminary
AC Electrical Characteristics (Note 9)
TA = −40°C to +85°C, CL = 30 pF, RL = 500Ω
Symbol
Parameter
V
CC = 3.3V ± 0.3V CC = 2.5 ± 0.2V CC = 1.8V ± 0.15V
V
V
Units
Min
Max
2.5
Min
1.0
1.0
1.0
Max
3.0
4.9
4.2
Min
Max
6.0
tPHL, tPLH
tPZL, tPZH
tPLZ, tPHZ
Prop Delay
0.8
0.8
0.8
1.5
1.5
1.5
ns
ns
ns
Output Enable Time
Output Disable Time
3.8
3.7
9.3
7.6
Note 9: For CL = 50pF, add approximately 300ps to the AC maximum specification.
Dynamic Switching Characteristics
VCC
T
A = +25°C
Symbol
VOLP
Parameter
Conditions
Units
(V)
1.8
2.5
3.3
1.8
2.5
3.3
1.8
2.5
3.3
Typical
0.25
0.6
Quiet Output Dynamic
C
C
C
L = 30 pF, VIH = VCC, VIL = 0V
Peak VOL
V
0.8
VOLV
Quiet Output Dynamic
Valley VOL
L = 30 pF, VIH = VCC, VIL = 0V
L = 30 pF, VIH = VCC, VIL = 0V
−0.25
−0.6
−0.8
1.5
V
V
VOHV
Quiet Output Dynamic
Valley VOH
1.9
2.2
Capacitance
TA = +25°C
Symbol
Parameter
Conditions
Units
CIN
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
V
CC = 1.8V, 2.5V, or 3.3V, VI = 0V or VCC
6
7
pF
pF
CI/O
CPD
VI = 0V, or VCC, VCC = 1.8V, 2.5V or 3.3V
VI = 0V or VCC, F = 10 MHz
20
pF
VCC = 1.8V, 2.5V or 3.3V
5
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Preliminary
AC Loading and Waveforms
FIGURE 1. AC Test Circuit
SWITCH
TEST
t
PLH, tPHL
Open
tPZL, tPLZ
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
Preliminary
Physical Dimensions inches (millimeters) unless otherwise noted
96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
Package Number BGA96A
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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