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PALCE16V8 Datasheet, PDF (24/32 Pages) Advanced Micro Devices – EE CMOS 20-Pin Universal Programmable Array Logic
CAPACITANCE1
Parameter
Symbol
Parameter Description
Test Conditions
Typ Unit
CIN
Input Capacitance
COUT
Output Capacitance
VIN = 2.0 V
VOUT = 2.0 V
VCC = 5.0 V, TA = 25 °C,
f = 1 MHz
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 RANGES1
Parameter
Symbol
Parameter Description
R -25
FO Min 2
Max
Unit
tPD
tS
tH
tCO
tWL
tWH
fMAX
tPZX
tPXZ
tEA
tER
Notes:
Input or Feedback to Combinatorial Output (Note 3)
Setup Time from Input or Feedback to Clock
ES Hold Time
S Clock to Output
IC N LOW
V Clock Width
E IG HIGH
D S Maximum
E Frequency (Notes 4
L D and 5)
External Feedback
Internal Feedback (fCNT)
No Feedback
A OE to Output Enable
G W OE to Output Disable
E Input to Output Enable Using Product Term Control
USE N Input to Output Disable Using Product Term Control
1/(tS+tCO)
1/(tS+tCF)
1/(tWH+tWL)
25
ns
20
ns
0
ns
10
ns
8
ns
8
ns
33.3
MHz
50
MHz
50
MHz
25
ns
25
ns
25
ns
25
ns
1. See “Switching Test Circuit” for test conditions.
2. This parameter is tested in standby mode.
3. This parameter is tested in Standby Mode. When the device is not in Standby Mode, the tPD will typically be 2 ns faster.
4. 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.
5. tCF is a calculated value and is not guaranteed. tCF can be found using the following equation:
tCF = 1/fMAX (internal feedback) – tS.
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PALCE16V8Z-25 (Com’l, Ind)