AC Waveforms(1)
Note:
1. Timing measurement reference is 1.5V. Input AC driving levels are 0.0V and 3.0V, unless otherwise specified.
AC Characteristics(1)
-7
-10
-15
-20
-25
Max Units
Symbol Parameter
Min
3
Max
Min Max
Min
3
Max
Min
3
Max
Min
3
Input or Feedback to
tPD
7.5
3
2
10
15
20
25
ns
Combinatorial Output
tCO
tCF
tS
Clock to Output
2
4.5(2)
2.5
6.5
2.5
2
8
2
12
8
2
15
13
ns
ns
Clock to Feedback
Input or Feedback Setup Time
Hold Time
2.5
3.5
0
4.5
0
10
0
14
15
0
ns
tH
0
ns
External Feedback 1/(tS + tCO
Internal Feedback 1/(tS + tCF
No Feedback 1/(tWH + tWL
Clock Width (tWL and tWH
Input or I/O to Output Enable
)
125(3)
166
166
3
90
142
142
3.5
3
55.5
69
83.3
6
38.5
45.5
33.3
40
38.5
13
3
MHz
MHz
MHz
ns
fMAX
)
)
tW
)
10
3
tEA
tER
3
7.5
7.5
10
9
3
15
15
20
20
25
25
ns
Input or I/O to Output Disable
3
3
3
3
3
ns
Input or I/O to Asynchronous
Reset of Register
tAP
3
7
10
3
8
6
6
8
12
3
20
3
22
3
25
ns
ns
ns
ns
ns
tAW
tAR
tSP
Asynchronous Reset Width
15
10
10
10
20
20
14
14
25
25
15
15
Asynchronous Reset
Recovery Time
5
Setup Time, Synchronous Preset
4.5
5
Synchronous Preset to
Clock Recovery Time
tSPR
Notes: 1. See ordering information for valid part numbers.
2. 5.5 ns for DIP package devices.
3. 111 MHz for DIP package devices.
4. The shaded devices are obsolete.
ATF22V10B
4
ATMEL [ ATMEL ]
