AMD
CAPACITANCE (Note 1)
Parameter
Symbol
Parameter Descriptions
Test Conditions
VIN = 2.0 V
Typ
5
Unit
pF
CIN
Input Capacitance
Output Capacitance
VCC = 5.0 V, TA = 25°C,
COUT
VOUT = 2.0 V
f = 1 MHz
8
pF
Note:
1. These parameters are not 100% tested, but are evaluated at initial characterization and at any time the design is modified
where capacitance may be affected.
SWITCHING CHARACTERISTICS over COMMERCIAL and INDUSTRIAL operating ranges
(Note 2)
-15
-20
-25
Parameter
Symbol
Parameter Description
Min Max Min Max
Min Max Unit
tPD
tS
Input or Feedback to Combinatorial Output
Setup Time from Input or Feedback to Clock
Hold Time
15
10
20
11
25
ns
ns
12
0
13
0
15
0
tH
ns
tCO
tWL
tWH
Clock to Output
12
ns
LOW
8
8
10
10
12
12
37
40
ns
Clock Width
HIGH
ns
External Feedback
1/(tS + tCO
)
45.5
50
41.6
45.4
MHz
MHz
Maximum
Frequency
(Note 3)
fMAX
Internal Feedback
1/(tS + tCO
(Note 4)
)
(fCNT
)
No Feedback
1/(tWH + tWL
)
62.5
50.0
41.6
MHz
ns
tPZX
tPXZ
OE to Output Enable
OE to Output Disable
15
15
15
15
18
18
18
18
20
20
20
20
ns
tEA
Input to Output Enable Using Product Term Control
Input to Output Disable Using Product Term Control
ns
tER
ns
Notes:
2. See Switching Test Circuit for test conditions.
3. These parameters are not 100% tested, but are calculated at initial characterization and at any time the design is modified
where frequency may be affected.
4. tCF is a calculated value and is not guaranteed. tCF can be found using the following equation:
tCF = 1/fMAX (internal feedback) – tS.
2-54
PALCE16V8H-15/25, Q-15/25 (Com’l, Ind), Q-20 (Ind)
AMD [ AMD ]
