74LVC2T45DC,125 NXP Semiconductors, 74LVC2T45DC,125 Datasheet - Page 25

• Manufacturer Part Number: 74LVC2T45DC,125
• Description: TXRX TRANSLATING 3ST 8VSSOP
• Manufacturer: NXP Semiconductors

Specifications of 74LVC2T45DC,125

• 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: VSSOP-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: 568-5479-2

NXP Semiconductors
74LVC_LVCH2T45
Product data sheet
14.4 Enable times
Calculate the enable times for the 74LVC2T45; 74LVCH2T45 using the following
formulas:
In a bidirectional application, these enable times provide the maximum delay from the
time the DIR bit is switched until an output is expected. For example, if the 74LVC2T45;
74LVCH2T45 initially is transmitting from A to B, then the DIR bit is switched, the B port of
the device must be disabled before presenting it with an input. After the B port has been
disabled, an input signal applied to it appears on the corresponding A port after the
specified propagation delay.
•
•
•
•
t
t
t
t
PZH
PZL
PZH
PZL
(DIR to A) = t
(DIR to B) = t
(DIR to A) = t
(DIR to B) = t
All information provided in this document is subject to legal disclaimers.
PHZ
PHZ
PLZ
PLZ
Rev. 4 — 20 August 2010
(DIR to B) + t
(DIR to B) + t
(DIR to A) + t
(DIR to A) + t
74LVC2T45; 74LVCH2T45
PLH
PHL
PLH
PHL
(B to A)
(B to A)
(A to B)
(A to B)
Dual supply translating transceiver; 3-state
© NXP B.V. 2010. All rights reserved.
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