Datasheet

7
Q
n
to Q
n+1
t
PLH
, t
PHL
C
L
= 50pF 2 - - - - - - - ns
4.5 - - 16 - 20 - 24 ns
C
L
= 15pF 5 - 6 - - - - - ns
C
L
= 50pF 6 - - - - - - - ns
MR to Q
n
t
PHL
C
L
= 50pF 2 - - - - - - - ns
4.5 - - 44 - 55 - 66 ns
C
L
= 15pF 5 - 17 - - - - - ns
C
L
= 50pF 6 - - - - - - - ns
Output Transition Time t
THL
, t
TLH
C
L
= 50pF 2 - - - - - - - ns
4.5 - - 15 - 19 - 22 ns
6------ -ns
Input Capacitance C
I
(TBD)
Propagation Dissipation
Capacitance (Notes 5, 6)
C
PD
---40-----pF
NOTES:
5. C
PD
is used to determine the dynamic power consumption, per package.
6. P
D
= C
PD
V
CC
2
f
i
∑(C
L
V
CC
2
f
i
/M) where M = 2
1
, 2
2
, 2
3
, ...2
14
, f
i
= input frequency, C
L
= output load capacitance.
Switching Specifications Input t
r
, t
f
= 6ns (Continued)
PARAMETER SYMBOL
TEST
CONDITIONS V
CC
(V)
25
o
C
-40
o
C TO
85
o
C
-55
o
C TO
125
o
C
UNITSMIN TYP MAX MIN MAX MIN MAX
TYPICAL LIMIT VALUES FOR R
X
AND C
X
PARAMETER
TEST
CONDITIONS VOLTAGE
TYPICAL
MAXIMUM
LIMITS
R
X
Minimum C
X
> 1000pF 2 1KΩ
C
X
> 10pF 4.5
C
X
> 10pF 6
R
X
Maximum C
X
> 10pF 2 20MΩ
C
X
> 10pF 4.5
C
X
> 10pF 6
C
X
Minimum R
X
> 10KΩ 2 10pF
R
X
> 10KΩ 4.5
R
X
> 10KΩ 6
R
X
= 1KΩ 2 1000pF
R
X
= 1KΩ 4.5 10pF
R
X
= 1KΩ 6 10pF
Maximum
Astable Oscillator
Frequency
C
X
= 1000pF,
R
X
= 1KΩ
2 0.5MHz
(Note 7)
C
X
= 100pF,
R
X
= 1KΩ
4.5 3MHz
(Note 7)
C
X
= 100pF,
R
X
= 1KΩ
6 3MHz
(Note 7)
NOTE:
7. At very high frequencies f = 1/2.2 R
X
C
X
no longer gives an
accurate approximation.
NOTE: OSC Frequency ≈ 1/2.2 R
X
C
X
For 1MΩ > R
X
> 1KΩ, C
X
> 10pF, f < 1MHz
FIGURE 2. FREQUENCY OF ON-BOARD OSCILLATOR AS A
FUNCTION OF C
X
AND R
X
10
2
10
1
10
-1
10
-2
10
-3
10
-4
10
-5
10
-1
10
0
10
10
2
10
3
10
4
10
5
10
6
OSCILLATOR FREQUENCY (Hz)
C
X
(µF)
T
A
= 25
o
C
R
X
= 1KΩ
10KΩ
100KΩ
1MΩ
10MΩ
CD54/74HC4060, CD54/74HCT4060