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74LVQ245TTR

P1-P3P4-P6P7-P9P10-P12
74LVQ245
4/12
Table 8: AC Electrical Characteristics (C
L
= 50 pF, R
L
= 500 Ω, Input t
r
= t
f
= 3ns)
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW (t
OSLH
= |t
PLHm
- t
PLHn
|, t
OSHL
= |t
PHLm
- t
PHLn
|)
2) Parameter guaranteed by design
(*) Voltage range is 3.3V ±
0.3V
Table 9: Capacitive Characteristics
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/8 (per circuit)
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
t
PLH
t
PHL
Propagation Delay
Time
2.7 6.7 11.0 13.0 15.0
ns
3.3
(*)
5.7 9.0 10.5 12.0
t
PZL
t
PZH
Output Enable
Time
2.7 9.3 15.0 17.5 20.0
ns
3.3
(*)
7.5 12.0 14.0 16.0
t
PLZ
t
PHZ
Output Disable
Time
2.7 7.5 12.0 14.0 16.0
ns
3.3
(*)
6.6 10.0 11.5 13.0
t
OSLH
t
OSHL
Output To Output
Skew Time
(note1, 2)
2.7 0.5 1.0 1.0 1.0
ns
3.3
(*)
0.5 1.0 1.0 1.0
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
C
IN
Input Capacitance
3.3 5 pF
C
I/O
I/O Capacitance
3.3 10
pF
C
PD
Power Dissipation
Capacitance (note
1)
3.3
f
IN
= 10MHz
20 pF
74LVQ245
5/12
Figure 3: Test Circuit
C
L
= 50pF or equivalent (includes jig and probe capacitance)
R
L
= R
1
= 500Ω or equivalent
R
T
= Z
OUT
of pulse generator (typically 50Ω)
Figure 4: Waveform - Propagation Delays (f=1MHz; 50% duty cycle)
TEST SWITCH
t
PLH
, t
PHL
Open
t
PZL
, t
PLZ
2V
CC
t
PZH
, t
PHZ
Open
74LVQ245
6/12
Figure 5: Waveform - Output Enable And Disable Time (f=1MHz; 50% duty cycle)
P1-P3P4-P6P7-P9P10-P12

74LVQ245TTR

Mfr. #:
Buy 74LVQ245TTR
Manufacturer:
STMicroelectronics
Description:
IC TXRX NON-INVERT 3.6V 20TSSOP
Lifecycle:
New from this manufacturer.
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