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74VCXH2245 데이터시트 PDF




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부품번호 74VCXH2245 기능
기능 Low Voltage Bidirectional Transceiver with Bushold and 26 Series Resistors in B Outputs
제조업체 Fairchild Semiconductor
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74VCXH2245 데이터시트, 핀배열, 회로
www.DataSheet4U.com
June 1999
Revised July 1999
74VCXH2245
Low Voltage Bidirectional Transceiver with Bushold
and 26Series Resistors in B Outputs
General Description
The VCXH2245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The T/R input determines the direction
of data flow. The OE input disables both the A and B Ports
by placing them in a high impedance state. The VCXH2245
data inputs include active bushold circuitry, eliminating the
need for external pull-up resistors to hold unused or float-
ing data inputs at a valid logic level.
The 74VCXH2245 is designed for low voltage (1.65V to
3.6V) VCC applications. The VCXH2245 is also designed
with 26series resistance in the B Port outputs. This
design reduces line noise in applications such as memory
address drivers, clock drivers, and bus transceivers trans-
mitters
The 74VCXH2245 is fabricated with an advanced CMOS
technology to achieve high-speed operation while main-
taining low CMOS power dissipation.
Features
s 1.65V-3.6V VCC supply operation
s 3.6V tolerant control inputs
s Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
s 26series resistors in B Port outputs
s tPD (A to B)
4.4 ns max for 3.0V to 3.6V VCC
5.6 ns max for 2.3V to 2.7V VCC
9.8 ns max for 1.65V to 1.95V VCC
s Static Drive (IOH/IOL B outputs):
±12 mA @ 3.0V VCC
±8 mA @ 2.3V VCC
±3 mA @ 1.65V VCC
s Uses patented Quiet Seriesnoise/EMI reduction
circuitry
s Latchup performance exceeds 300 mA
s ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Order Number Package Number
Package Description
74VCXH2245WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
74VCXH2245MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
Quiet Seriesis a trademark of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation ds500199
www.fairchildsemi.com




74VCXH2245 pdf, 반도체, 판매, 대치품
DC Electrical Characteristics (2.3V VCC 2.7V)
Symbol
Parameter
Conditions
VCC
(V)
VIH HIGH Level Input Voltage
VIL LOW Level Input Voltage
VOH HIGH Level Output Voltage
A Outputs
HIGH Level Output Voltage
B Outputs
VOL
II
II(HOLD)
II(OD)
LOW Level Output Voltage
A Outputs
LOW Level Output Voltage
B Outputs
Input Leakage Current
Bushold Input Minimum
Drive Hold Current
Bushold Input OverDrive
Current to Change State
IOH = −100 µA
IOH = −6 mA
IOH = −12 mA
IOH = −18 mA
IOH = −100 µA
IOH = −4 mA
IOH = −6 mA
IOH = −8mA
IOL = 100 µA
IOL = 12 mA
IOL = 18 mA
IOL = 100 µA
IOL = 6 mA
IOL = 8 mA
VIN = VCC or GND
VIN = 0.7V
VIN = 1.6V
(Note 6)
(Note 7)
2.3–2.7
2.3–2.7
2.3–2.7
2.3
2.3
2.3
2.3–2.7
2.3
2.3
2.3
2.3–2.7
2.3
2.3
2.3–2.7
2.3
2.3
2.3–2.7
2.3
2.3
2.7
2.7
IOZ 3-STATE Output Leakage
VO = VCC or GND
2.3–2.7
VI = VIH or VIL
ICC Quiescent Supply Current
VI = VCC or GND
2.3–2.7
Note 6: An external driver must source at least the specified current to switch from LOW-to-HIGH.
Note 7: An external driver must sink at least the specified current to switch from HIGH-to-LOW.
Min
1.6
VCC 0.2
2.0
1.8
1.7
VCC–2
2.0
1.8
1.7
45
45
300
300
DC Electrical Characteristics (1.65V VCC < 2.3V)
Symbol
Parameter
Conditions
VCC
(V)
VIH
VIL
VOH
VOL
II
II(HOLD)
II(OD)
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
A Outputs
HIGH Level Output Voltage
B Outputs
LOW Level Output Voltage
A Outputs
LOW Level Output Voltage
B Outputs
Input Leakage Current
Bushold Input Minimum
Drive Hold Current
Bushold Input Over-Drive
Current to Change State
IOH = −100 µA
IOH = −6 mA
IOH = −100 µA
IOH = −3 mA
IOL = 100 µA
IOL = 6 mA
IOL = 100µA
IOL = 3 mA
0 VI 3.6V
VIN = 0.57V
VIN = 1.07V
(Note 8)
(Note 9)
1.65–2.3
1.65–2.3
1.65–1.95
1.65
1.65–2.3
1.65
1.65–2.3
1.65
1.65–2.3
1.65
1.65–2.3
1.65
1.65
1.95
1.95
IOZ 3-STATE Output Leakage
VO = VCC or GND
1.65–2.3
ICC Quiescent Supply Current
VI = VCC or GND
1.65–2.3
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.
Min
0.65 x VCC
VCC 0.2
1.25
VCC–0.2
1.25
25
25
200
200
Max
0.7
Units
V
V
V
0.2
0.4
0.6
0.2
0.4
0.6
±5.0
±10
20
V
V
V
µA
µA
µA
µA
µA
Max
0.35 x VCC
0.2
0.3
0.2
0.3
±5.0
±10
20
Units
V
V
V
V
V
V
µA
µA
µA
µA
µA
www.fairchildsemi.com
4

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74VCXH2245 전자부품, 판매, 대치품
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
Package Number M20B
7 www.fairchildsemi.com

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부품번호상세설명 및 기능제조사
74VCXH2245

Low Voltage Bidirectional Transceiver with Bushold and 26 Series Resistors in B Outputs

Fairchild Semiconductor
Fairchild Semiconductor

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