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74LVC245ADB,112

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
74LVC_LVCH245A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 8 — 28 June 2013 6 of 18
NXP Semiconductors
74LVC245A; 74LVCH245A
Octal bus transceiver; 3-state
[1] All typical values are measured at V
CC
= 3.3 V (unless stated otherwise) and T
amb
=25C.
[2] The bus hold circuit is switched off when V
I
>V
CC
allowing 5.5 V on the input terminal.
[3] For I/O ports the parameter I
OZ
includes the input leakage current.
[4] Valid for data inputs of bus hold parts only (74LVCH245A). Note that control inputs do not have a bus hold circuit.
[5] The specified sustaining current at the data input holds the input below the specified V
I
level.
[6] The specified overdrive current at the data input forces the data input to the opposite input state.
I
OZ
OFF-state
output current
V
I
=V
IH
or V
IL
;
V
O
=5.5VorGND;
V
CC
=3.6V
[3]
- 0.1 5-20 A
I
OFF
power-off
leakage
current
V
I
or V
O
=5.5V; V
CC
= 0.0
V
- 0.1 10 - 20 A
I
CC
supply
current
V
I
=V
CC
or GND; I
O
=0A;
V
CC
=3.6V
-0.110 - 40A
I
CC
additional
supply
current
per input pin;
V
I
=V
CC
0.6 V; I
O
=0A;
V
CC
= 2.7 V to 3.6 V
- 5 500 - 5000 A
C
I
input
capacitance
V
CC
= 0 V to 3.6 V;
V
I
=GNDtoV
CC
-4.0- - -pF
C
I/O
input/output
capacitance
V
CC
= 0 V to 3.6 V;
V
I
=GNDtoV
CC
-10- - -pF
I
BHL
bus hold
LOW current
V
CC
= 1.65; V
I
= 0.58 V
[4][5]
10 - - 10 - A
V
CC
= 2.3; V
I
= 0.7 V 30 - - 25 - A
V
CC
= 3.0; V
I
= 0.8 V 75 - - 60 - A
I
BHH
bus hold
HIGH current
V
CC
= 1.65; V
I
= 1.07 V
[4][5]
10 - - 10 - A
V
CC
= 2.3; V
I
= 1.7 V 30 - - 25 - A
V
CC
= 3.0; V
I
= 2.0 V 75 - - 60 - A
I
BHLO
bus hold
LOW
overdrive
current
V
CC
= 1.95 V 200 - - 200 - A
V
CC
= 2.7 V 300 - - 300 - A
V
CC
= 3.6 V
[4][6]
500 - - 500 - A
I
BHHO
bus hold
HIGH
overdrive
current
V
CC
= 1.95 V 200 - - 200 - A
V
CC
= 2.7 V 300 - - 300 - A
V
CC
= 3.6 V
[4][6]
500 - - 500 - A
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 40 C to +125 C Unit
Min Typ
[1]
Max Min Max
74LVC_LVCH245A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 8 — 28 June 2013 7 of 18
NXP Semiconductors
74LVC245A; 74LVCH245A
Octal bus transceiver; 3-state
10. Dynamic characteristics
[1] t
pd
is the same as t
PLH
and t
PHL
.
t
en
is the same as t
PZL
and t
PZH
.
t
dis
is the same as t
PLZ
and t
PHZ
.
[2] Typical values are measured at T
amb
=25C and V
CC
= 1.2 V, 1.8 V, 2.5 V, 2.7 V and 3.3 V respectively.
[3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
[4] C
PD
is used to determine the dynamic power dissipation (P
D
in W).
P
D
=C
PD
V
CC
2
f
i
N+(C
L
V
CC
2
f
o
) where:
f
i
= input frequency in MHz; f
o
= output frequency in MHz
C
L
= output load capacitance in pF
V
CC
= supply voltage in Volts
N = number of inputs switching
(C
L
V
CC
2
f
o
) = sum of the outputs.
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 40 C to +125 C Unit
Min Typ
[2]
Max Min Max
t
pd
propagation
delay
nAn to nBn; nBn to nAn; see Figure 5
[1]
V
CC
= 1.2 V - 17.0 - - - ns
V
CC
= 1.65 V to 1.95 V 1.5 6.5 14.6 1.5 16.9 ns
V
CC
= 2.3 V to 2.7 V 1.0 3.4 7.6 1.0 8.7 ns
V
CC
= 2.7 V 1.5 3.4 7.3 1.5 9.5 ns
V
CC
= 3.0 V to 3.6 V 1.5 2.9 6.3 1.5 8.0 ns
t
en
enable time nOE to nAn, nBn; see Figure 6
[1]
V
CC
= 1.2 V - 22.0 - - - ns
V
CC
= 1.65 V to 1.95 V 1.9 8.3 19.5 1.9 22.5 ns
V
CC
= 2.3 V to 2.7 V 1.5 4.6 10.7 1.5 12.4 ns
V
CC
= 2.7 V 1.5 4.8 9.5 1.5 12.0 ns
V
CC
= 3.0 V to 3.6 V 1.5 3.7 8.5 1.5 11.0 ns
t
dis
disable time nOE to nAn, nBn; see Figure 6
[1]
V
CC
= 1.2 V - 12.0 - - - ns
V
CC
= 1.65 V to 1.95 V 2.9 5.5 12.3 2.9 14.2 ns
V
CC
= 2.3 V to 2.7 V 1.0 3.1 7.1 1.0 8.2 ns
V
CC
= 2.7 V 1.5 3.9 8.0 1.5 10.0 ns
V
CC
= 3.0 V to 3.6 V 1.7 3.6 7.0 1.7 9.0 ns
t
sk(o)
output skew
time
[3]
- - 1.0 - 1.5 ns
C
PD
power
dissipation
capacitance
per input; V
I
=GNDtoV
CC
[4]
V
CC
= 1.65 V to 1.95 V - 7.7 - - - pF
V
CC
= 2.3 V to 2.7 V - 11.3 - - - pF
V
CC
= 3.0 V to 3.6 V - 14.4 - - - pF
74LVC_LVCH245A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 8 — 28 June 2013 8 of 18
NXP Semiconductors
74LVC245A; 74LVCH245A
Octal bus transceiver; 3-state
11. AC waveforms
See Table 8 for measurement points
V
OL
and V
OH
are typical output voltage levels that occur with the output load.
Fig 5. Input (An, Bn) to output (Bn, An) propagation delays and output transition times
mna176
An,
Bn input
Bn,
An output
t
PLH
t
PHL
GND
V
I
V
M
V
M
V
M
V
M
V
OH
V
OL
See Table 8 for measurement points
V
OL
and V
OH
are typical output voltage levels that occur with the output load.
Fig 6. Enable and disable times
mna367
t
PLZ
t
PHZ
outputs
disabled
outputs
enabled
V
Y
V
X
outputs
enabled
output
LOW-to-OFF
OFF-to-LOW
output
HIGH-to-OFF
OFF-to-HIGH
OE input
V
I
V
OL
V
OH
V
CC
V
M
GND
GND
t
PZL
t
PZH
V
M
V
M
Table 8. Measurement points
Supply voltage V
M
Input
V
CC
V
I
t
r
=t
f
V
X
V
Y
1.2 V 0.5 V
CC
V
CC
2.5 ns V
OL
+ 0.15 V V
OH
0.15 V
1.65 V to 1.95 V 0.5 V
CC
V
CC
2.5 ns V
OL
+ 0.15 V V
OH
0.15 V
2.3 V to 2.7 V 0.5 V
CC
V
CC
2.5 ns V
OL
+ 0.15 V V
OH
0.15 V
2.7V 1.5V 2.7V 2.5 ns V
OL
+ 0.3 V V
OH
0.3 V
3.0V to 3.6V 1.5V 2.7V 2.5 ns V
OL
+ 0.3 V V
OH
0.3 V
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74LVC245ADB,112

Mfr. #:
Buy 74LVC245ADB,112
Manufacturer:
Nexperia
Description:
Bus Transceivers 3.3V OCTAL TRANSCVR 3-STATE
Lifecycle:
New from this manufacturer.
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