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부품번호 74LCX32646GX 기능
기능 Low Voltage 32-Bit Transceiver/Register with 5V Tolerant Inputs and Outputs (Preliminary)
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74LCX32646GX 데이터시트, 핀배열, 회로
Preliminary
August 2001
Revised August 2001
74LCX32646
Low Voltage 32-Bit Transceiver/Register
with 5V Tolerant Inputs and Outputs (Preliminary)
General Description
The LCX32646 contains thirty-two non-inverting bidirec-
tional registered bus transceivers with 3-STATE outputs,
providing multiplexed transmission of data directly from the
input bus or from the internal storage registers. Each byte
has separate control inputs which can be shorted together
for full 32-bit operation.The DIRn inputs determine the
direction of data flow through the device. The CPABn and
CPBAn inputs load data into the registers on the LOW-to-
HIGH transition (see Functional Description).
The LCX32646 is designed for low voltage (2.5V or 3.3V)
VCC applications with capability of interfacing to a 5V signal
environment.
The LCX32646 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power dissipation.
Features
s 5V tolerant inputs and outputs
s 2.3V–3.6V VCC specifications provided
s 5.2 ns tPD max (VCC = 3.3V), 20 µA ICC max
s Power down high impedance inputs and outputs
s Supports live insertion/withdrawal (Note 1)
s ±24 mA Output Drive (VCC = 3.0V)
s Implements patented noise/EMI reduction circuitry
s Latch-up performance exceeds 500 mA
s ESD performance:
Human Body Model > 2000V
Machine Model > 200V
s Packaged in plastic Fine-Pitch Ball Grid Array (FBGA)
(Preliminary)
Note 1: To ensure the high-impedance state during power up or down, OE
should be tied to VCC through a pull-up resistor: the minimum value or the
resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Order Number Package Number
Package Description
74LCX32646GX
(Note 2)
BGA114A
114-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
(Preliminary) [TAPE and REEL]
Note 2: BGA package available in Tape and Reel only.
© 2001 Fairchild Semiconductor Corporation DS500635
www.fairchildsemi.com




74LCX32646GX pdf, 반도체, 판매, 대치품
Logic Diagrams
Preliminary
Please note that these diagrams are provided only for the understanding of logic operations and should not be used to estimate propagation delays.
www.fairchildsemi.com
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74LCX32646GX 전자부품, 판매, 대치품
Preliminary
Absolute Maximum Ratings(Note 5)
Symbol
VCC
VI
VO
Parameter
Supply Voltage
DC Input Voltage
DC Output Voltage
IIK DC Input Diode Current
IOK DC Output Diode Current
IO
ICC
IGND
TSTG
DC Output Source/Sink Current
DC Supply Current per Supply Pin
DC Ground Current per Ground Pin
Storage Temperature
Value
0.5 to +7.0
0.5 to +7.0
0.5 to +7.0
0.5 to VCC + 0.5
50
50
+50
±50
±100
±100
65 to +150
Conditions
Output in 3-STATE
Output in HIGH or LOW State (Note 6)
VI < GND
VO < GND
VO > VCC
Units
V
V
V
mA
mA
mA
mA
mA
°C
Recommended Operating Conditions (Note 7)
Symbol
Parameter
Min Max Units
VCC Supply Voltage
Operating
Data Retention
2.0
1.5
3.6
3.6
V
VI Input Voltage
VO Output Voltage
HIGH or LOW State
3-STATE
0
0
0
5.5
VCC
5.5
V
V
IOH/IOL Output Current
VCC = 3.0V 3.6V
±24
VCC = 2.7V 3.0V
±12 mA
VCC = 2.3V 2.7V
±8
TA Free-Air Operating Temperature
40 85
°C
t/V
Input Edge Rate, VIN = 0.8V2.0V, VCC = 3.0V
0 10 ns/V
Note 5: 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 Conditionstable will define the conditions for actual device operation.
Note 6: IO Absolute Maximum Rating must be observed.
Note 7: Unused inputs and I/Os must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
Parameter
VIH HIGH Level Input Voltage
VIL LOW Level Input Voltage
VOH HIGH Level Output Voltage
VOL LOW Level Output Voltage
II Input Leakage Current
IOZ 3-STATE I/O Leakage
IOFF Power-Off Leakage Current
Conditions
IOH = −100 µA
IOH = −8 mA
IOH = −12 mA
IOH = −18 mA
IOH = −24 mA
IOL = 100 µA
IOL = 8 mA
IOL = 12 mA
IOL = 16 mA
IOL = 24 mA
0 VI 5.5V
0 VO 5.5V
VI = VIH or VIL
VI or VO = 5.5V
VCC
(V)
2.3 2.7
2.7 3.6
2.3 2.7
2.7 3.6
2.3 3.6
2.3
2.7
3.0
3.0
2.3 3.6
2.3
2.7
3.0
3.0
2.3 3.6
TA = −40°C to +85°C
Min Max
1.7
2.0
0.7
0.8
VCC 0.2
1.8
2.2
2.4
2.2
0.2
0.6
0.4
0.4
0.55
±5.0
2.3 3.6
±5.0
0 10
Units
V
V
V
V
µA
µA
µA
7 www.fairchildsemi.com

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부품번호상세설명 및 기능제조사
74LCX32646GX

Low Voltage 32-Bit Transceiver/Register with 5V Tolerant Inputs and Outputs (Preliminary)

Fairchild Semiconductor
Fairchild Semiconductor

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