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74LVT245DB Datenblatt(PDF) 6 Page - NXP Semiconductors

Teilenummer 74LVT245DB
Bauteilbeschribung  3.3 V octal transceiver with direction pin (3-state)
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Hersteller  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

74LVT245DB Datenblatt(HTML) 6 Page - NXP Semiconductors

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74LVT245_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 8 May 2008
6 of 15
NXP Semiconductors
74LVT245
3.3 V octal transceiver with direction pin (3-state)
[1]
All typical values are measured at VCC = 3.3 V (unless stated otherwise) and Tamb =25 °C.
[2]
Unused pins at VCC or GND.
[3]
This parameter is valid for any VCC between 0 V and 1.2 V with a transition time of up to 10 ms. From VCC =1.2 VtoVCC = 3.3 V ± 0.3 V
a transition time of 100 ms is permitted. This parameter is valid for Tamb = +25 °C only.
[4]
This is the bus hold overdrive current required to force the input to the opposite logic state.
[5]
This is the increase in supply current for each input at the specified voltage level other than VCC or GND.
10. Dynamic characteristics
ICC
supply current
VCC = 3.6 V; VI =VCC or GND; IO =0A
outputs HIGH
-
0.13
0.19
mA
outputs LOW
-
3
12
mA
outputs disabled
-
0.13
0.19
mA
∆ICC
additional supply current
per input pin; VCC = 3.0 V to 3.6 V;
one input = VCC − 0.6 V;
other inputs at VCC or GND
[5]
-
0.1
0.2
mA
CI
input capacitance
DIR and OE inputs; outputs disabled;
VI = 0 V or 3.0 V
-4
-
pF
CI/O
input/output capacitance
at input/output data pins, outputs disabled;
VI/O = 0 V or 3.0 V
-10
-
pF
Table 6.
Static characteristics …continued
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
−40 °C to +85 °C
Unit
Min
Typ[1]
Max
Table 7.
Dynamic characteristics
Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 7.
Symbol Parameter
Conditions
−40 °C to +85 °C
Unit
Min
Typ[1]
Max
tPLH
LOW to HIGH propagation delay
An to Bn or Bn to An
VCC = 2.7 V
-
-
4.7
ns
VCC = 3.3 V ± 0.3 V
1.0
2.4
4.0
ns
tPHL
HIGH to LOW propagation delay
An to Bn or Bn to An
VCC = 2.7 V
-
-
4.6
ns
VCC = 3.3 V ± 0.3 V
1.0
2.4
4.0
ns
tPZH
OFF-state to HIGH propagation delay see Figure 6
VCC = 2.7 V
-
-
7.1
ns
VCC = 3.3 V ± 0.3 V
1.1
3.3
5.5
ns
tPZL
OFF-state to LOW propagation delay
see Figure 6
VCC = 2.7 V
-
-
6.5
ns
VCC = 3.3 V ± 0.3 V
1.1
3.3
5.5
ns
tPHZ
HIGH to OFF-state propagation delay see Figure 6
VCC = 2.7 V
-
-
6.5
ns
VCC = 3.3 V ± 0.3 V
2.2
3.6
5.9
ns


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