74LVC2T45GT,115 NXP Semiconductors, 74LVC2T45GT,115 Datasheet - Page 23

• Manufacturer Part Number: 74LVC2T45GT,115
• Description: TXRX TRANSLATING 3ST XSON8
• Manufacturer: NXP Semiconductors

Specifications of 74LVC2T45GT,115

• Logic Family: 74LVC
• Number Of Channels Per Chip: 2
• Propagation Delay Time: 15.2 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.2 V
• Maximum Operating Temperature: + 125 C
• Package / Case: XSON-8
• Maximum Power Dissipation: 250 mW
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-5482-2

NXP Semiconductors
14. Application information
Table 16.
74LVC_LVCH2T45
Product data sheet
Pin
1
2
3
4
5
6
7
8
Fig 16. Unidirectional logic level-shifting application
Name
V
1A
2A
GND
DIR
2B
1B
V
Description of unidirectional logic level-shifting application
CC(A)
CC(B)
14.1 Unidirectional logic level-shifting application
14.2 Bidirectional logic level-shifting application
The circuit given in
in an unidirectional logic level-shifting application.
Figure 17
level-shifting application. Since the device does not have an output enable pin, the system
designer should take precautions to avoid bus contention between system-1 and
system-2 when changing directions.
V
V
Function
V
OUT
OUT
GND
DIR
IN
IN
V
CC1
CC1
CC1
CC2
system-1
shows the 74LVC2T45; 74LVCH2T45 being used in a bidirectional logic
V
CC1
All information provided in this document is subject to legal disclaimers.
Figure 16
V
CC(A)
GND
Description
supply voltage of system-1 (1.2 V to 5.5 V)
output level depends on V
output level depends on V
device GND
the GND (LOW level) determines B port to A port direction
input threshold value depends on V
input threshold value depends on V
supply voltage of system-2 (1.2 V to 5.5 V)
1A
2A
Rev. 4 — 20 August 2010
1
2
3
4
74LVCH2T45
74LVC2T45
is an example of the 74LVC2T45; 74LVCH2T45 being used
74LVC2T45; 74LVCH2T45
8
7
6
5
V
1B
2B
DIR
Dual supply translating transceiver; 3-state
CC(B)
CC1
CC1
voltage
voltage
V
CC2
CC2
CC2
system-2
voltage
voltage
V
V
001aai931
CC2
CC2
© NXP B.V. 2010. All rights reserved.
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