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74VCX2245 데이터시트 PDF




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부품번호 74VCX2245 기능
기능 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26 Series Resistors in B Outputs
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74VCX2245 데이터시트, 핀배열, 회로
March 1998
Revised April 1999
74VCX16841
Low Voltage 20-Bit Transparent Latch with 3.6V Tolerant
Inputs and Outputs
General Description
The VCX16841 contains twenty non-inverting latches with
3-STATE outputs and is intended for bus oriented applica-
tions. The device is byte controlled. The flip-flops appear
transparent to the data when the Latch enable (LE) is
HIGH. When LE is LOW, the data that meets the setup time
is latched. Data appears on the bus when the Output
Enable (OE) is LOW. When OE is HIGH, the outputs are in
a high impedance state.
The 74VCX16841 is designed for low voltage (1.65V to
3.6V) VCC applications with I/O compatibility up to 3.6V.
The 74VCX16841 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Features
s 1.65V–3.6V VCC supply operation
s 3.6V tolerant inputs and outputs
s tPD (Dn to On)
3.0 ns max for 3.0V to 3.6V VCC
3.4 ns max for 2.3V to 2.7V VCC
6.8 ns max for 1.65V to 1.95V VCC
s Power-off high impedance inputs and outputs
s Supports live insertion and withdrawal (Note 1)
s Static Drive (IOH/IOL)
±24 mA @ 3.0V VCC
±18 mA @ 2.3V VCC
±6 mA @ 1.65V VCC
s Uses patented noise/EMI reduction circuitry
s Latch-up performance exceeds 300 mA
s 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 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
74VCX16841MTD
MTD56
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
Pin Descriptions
Pin Names
OEn
LEn
D0–D19
O0–O19
Description
Output Enable Input (Active LOW)
Latch Enable Input
Inputs
Outputs
© 1999 Fairchild Semiconductor Corporation DS500132.prf
www.fairchildsemi.com




74VCX2245 pdf, 반도체, 판매, 대치품
DC Electrical Characteristics (2.3V VCC 2.7V)
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 Output Leakage
IOFF
Power-OFF Leakage Current
ICC Quiescent Supply Current
Note 6: Outputs disabled or 3-STATE only.
Conditions
IOH = −100 µA
IOH = −6 mA
IOH = −12 mA
IOH = −18 mA
IOL = 100 µA
IOL = 12 mA
IOL = 18 mA
0 VI 3.6V
0 VO 3.6V
VI = VIH or VIL
0 (VI, VO) 3.6V
VI = VCC or GND
VCC (VI, VO) 3.6V (Note 6)
V CC
(V)
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 2.7
Min
1.6
VCC 0.2
2.0
1.8
1.7
2.3 2.7
0
2.3 2.7
2.3 2.7
Max
0.7
0.2
0.4
0.6
±5.0
±10
10
20
±20
DC Electrical Characteristics (1.65V VCC < 2.3V)
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 Output Leakage
IOFF
Power-OFF Leakage Current
ICC Quiescent Supply Current
Note 7: Outputs disabled or 3-STATE only.
Conditions
IOH = −100 µA
IOH = −6 mA
IOL = 100 µA
IOL = 6 mA
0 VI 3.6V
0 VO 3.6V
VI = VIH or VIL
0 (VI, VO) 3.6V
VI = VCC or GND
VCC (VI, VO) 3.6V (Note 7)
VCC
(V)
1.65 - 2.3
1.65 - 2.3
1.65 - 2.3
1.65
1.65 - 2.3
1.65
1.65 - 2.3
Min Max
0.65 × VCC
VCC 0.2
1.25
0.35 × VCC
0.2
0.3
±5.0
1.65 - 2.3
±10
0
1.65 - 2.3
1.65 - 2.3
10
20
±20
Units
V
V
V
V
V
V
V
V
V
µA
µA
µA
µA
µA
Units
V
V
V
V
V
V
µA
µA
µA
µA
µA
www.fairchildsemi.com
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74VCX2245 전자부품, 판매, 대치품
Physical Dimensions inches (millimeters) unless otherwise noted
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Package Number MTD56
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.
www.fairchildsemi.com
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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부품번호상세설명 및 기능제조사
74VCX2245

Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26 Series Resistors in B Outputs

Fairchild Semiconductor
Fairchild Semiconductor

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