74LVC4245AD 查看數據表（PDF） - NXP Semiconductors.
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74LVC4245AD Datasheet PDF : 17 Pages
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NXP Semiconductors
74LVC4245A
Octal dual supply translating transceiver; 3-state
Table 6. Static characteristics …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Min
∆ICC
additional supply current per control pin; IO = 0 A
[3]
VCCB = 2.7 V to 3.6 V;
-
VI = VCCB − 0.6 V;
other inputs at VCCB or GND
VCCA = 4.5 V to 5.5 V;
-
VI = VCCA − 0.6 V;
other inputs at VCCA or GND
[1] All typical values are measured at VCCA = 5.0 V, VCCB = 3.3 V and Tamb = 25 °C.
[2] For transceivers, the parameter IOZ includes the input leakage current.
[3] VCCB = 2.7 V to 3.6 V: other inputs at VCCB or GND.
VCCA = 4.5 V to 5.5 V: other inputs at VCCA or GND.
10. Dynamic characteristics
Typ[1] Max Unit
-
5000 µA
-
5000 µA
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V). VCCA = 4.5 V to 5.5 V; tr = tf ≤ 2.5 ns. For test circuit see Figure 8.
Symbol Parameter
Conditions
VCCB
−40 °C to +85 °C
−40 °C to +125 °C Unit
Min Typ[1] Max
Min
Max
tPHL
HIGH to LOW An to Bn;
propagation see Figure 6
delay
Bn to An;
see Figure 6
2.7 V
1.0 3.6 6.3 1.0
8.0
ns
3.0 V to 3.6 V
1.0 3.3 6.3 1.0
8.0
ns
2.7 V
1.0 3.4 6.1 1.0
8.0
ns
3.0 V to 3.6 V
1.0 3.4 6.1 1.0
8.0
ns
tPLH
LOW to HIGH An to Bn;
propagation see Figure 6
delay
Bn to An;
see Figure 6
2.7 V
1.0 3.3 6.7 1.0
8.5
ns
3.0 V to 3.6 V
1.0 2.8 6.5 1.0
8.5
ns
2.7 V
1.0 3.0 5.0 1.0
6.5
ns
3.0 V to 3.6 V
1.0 3.0 5.0 1.0
6.5
ns
tPZL
OFF-state to OE to An;
LOW
see Figure 7
propagation
delay
OE to Bn;
see Figure 7
2.7 V
3.0 V to 3.6 V
2.7 V
3.0 V to 3.6 V
1.0 4.5 9.0 1.0
1.0 4.5 9.0 1.0
1.0 4.4 8.7 1.0
1.0 3.8 8.1 1.0
11.5
ns
11.5
ns
11.0
ns
10.5
ns
tPZH
OFF-state to OE to An;
HIGH
see Figure 7
propagation
delay
OE to Bn;
see Figure 7
2.7 V
3.0 V to 3.6 V
2.7 V
3.0 V to 3.6 V
1.0 4.5 8.1 1.0
1.0 4.5 8.1 1.0
1.0 4.3 8.7 1.0
1.0 3.2 8.1 1.0
10.5
ns
10.5
ns
11.0
ns
10.5
ns
tPLZ
LOW to
OFF-state
OE to An;
see Figure 7
propagation
delay
OE to Bn;
see Figure 7
2.7 V
3.0 V to 3.6 V
2.7 V
3.0 V to 3.6 V
1.0 2.9 7.0 1.0
1.0 2.9 7.0 1.0
1.0 3.9 7.7 1.0
1.0 3.5 7.7 1.0
9.0
ns
9.0
ns
10.0
ns
10.0
ns
tPHZ
HIGH to
OFF-state
OE to An;
see Figure 7
propagation
delay
OE to Bn;
see Figure 7
2.7 V
3.0 V to 3.6 V
2.7 V
3.0 V to 3.6 V
1.0 2.8 5.8 1.0
1.0 2.8 5.8 1.0
1.0 3.3 7.8 1.0
1.0 2.9 7.8 1.0
7.5
ns
7.5
ns
10.0
ns
10.0
ns
74LVC4245A_6
Product data sheet
Rev. 06 — 18 January 2008
© NXP B.V. 2008. All rights reserved.
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