PALCE16V8 Datasheet, PDF (19/26 Pages) Advanced Micro Devices – EE CMOS 20-Pin Universal Programmable Array Logic

AMD
CAPACITANCE (Note 1)
Parameter
Symbol
CIN
COUT
Parameter Descriptions
Input Capacitance
Output Capacitance
Test Conditions
VIN = 2.0 V
VOUT = 2.0 V
VCC = 5.0 V, TA = 25°C,
f = 1 MHz
Typ Unit
5
pF
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)
Parameter
Symbol Parameter Description
-15
-20
Min Max Min Max
-25
Min Max Unit
tPD
Input or Feedback to Combinatorial Output
15
20
25 ns
tS
Setup Time from Input or Feedback to Clock
12
13
15
ns
tH
Hold Time
0
0
0
ns
tCO
Clock to Output
10
11
12 ns
tWL
Clock Width
tWH
LOW
HIGH
8
10
12
ns
8
10
12
ns
fMAX
Maximum
Frequency
(Note 3)
External Feedback
Internal Feedback
(fCNT)
1/(tS + tCO)
1/(tS + tCO)
(Note 4)
45.5
50
41.6
45.4
37
MHz
40
MHz
No Feedback
1/(tWH + tWL)
62.5
50.0
41.6
MHz
tPZX
OE to Output Enable
15
18
20 ns
tPXZ
OE to Output Disable
15
18
20 ns
tEA
Input to Output Enable Using Product Term Control
15
18
20 ns
tER
Input to Output Disable Using Product Term Control
15
18
20 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)