PALCE20V8 Advanced Micro Devices, PALCE20V8 Datasheet - Page 11

• Manufacturer Part Number: PALCE20V8
• Description: EE CMOS 24-Pin Universal Programmable Array Logic
• Manufacturer: Advanced Micro Devices

CAPACITANCE (Note 1)
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note 2)
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
4. t CF is a calculated value and is not guaranteed. t CF can be found using the following equation:
Note:
1. These parameters are not 100% tested, but are evaluated at initial characterization and at any time the design is modified
Parameter
Parameter
Symbol
Symbol
where frequency may be affected.
t CF = 1/f MAX (internal feedback) – t S .
where capacitance may be affected.
C
t
t
fMAX
C
t
t
t
t
t
PZX
PXZ
t
WH
OUT
PD
t
t
CO
WL
ER
EA
H
S
IN
Parameter Description
Input or Feedback to Combinatorial Output
Setup Time from Input or Feedback to Clock
Hold Time
Clock to Output
Clock Width
Maximum
Frequency
(Note 3)
OE to Output Enable
OE to Output Disable
Input to Output Enable Using Product Term Control
Input to Output Disable Using Product Term Control
Parameter Description
Input Capacitance
Output Capacitance
LOW
HIGH
External Feedback
Internal Feedback (fCNT) 1/(tS + tCF) (Note 4)
No Feedback
PALCE20V8H-15/25 Q-15/25 (Com’l)
Test Conditions
V
V
IN
OUT
1/(tS + tCO)
1/(tWH + tWL)
= 2.0 V
= 2.0 V
V
f = 1 MHz
CC
= 5.0 V, T
45.5
62.5
Min
12
50
0
8
8
-15
A
= 25 C,
Max
15
10
15
15
15
15
41.6
Min
15
12
12
37
40
0
-25
Typ
Max
25
12
20
20
25
5
8
25
AMD
MHz
MHz
MHz
Unit
Unit
pF
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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