AMD
CAPACITANCE (Note 1)
Parameter
Symbol
Parameter Description
Test Conditions
Typ
Unit
CIN
Input Capacitance
VIN = 2.0 V
VCC = 5.0 V
TA = 25°C
f = 1 MHz
8
pF
COUT
Output Capacitance
VOUT = 2.0 V
9
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 operating ranges (Note 2)
Parameter
Symbol
Parameter Description
Min
Max
Unit
tPD
Input or Feedback to Combinatorial Output
16L8, 16R6,
16R4
15
ns
tS
tH
Setup Time from Input or Feedback to Clock
Hold Time
15
0
ns
ns
tCO
tWL
tWH
Clock to Output or Feedback
12
ns
Clock Width
LOW
10
10
37
ns
16R8, 16R6,
16R4
HIGH
ns
Maximum
Frequency
(Note 3)
External Feedback
1/(tS + tCO
)
MHz
fMAX
No Feedback
1/(tWH + tWL
)
50
MHz
ns
tPZX
tPXZ
tEA
OE to Output Enable
OE to Output Disable
15
15
15
15
ns
Input to Output Enable Using Product Term Control
Input to Output Disable Using Product Term Control
ns
16R8, 16R6,
16R4
tER
ns
Notes:
2. See Switching Test Circuit for test conditions.
3. 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.
2-21
PAL16R8B (Com’l)
AMD [ AMD ]
