ST & T UPSD3212C User Manual
Page 148
uPSD3212A, uPSD3212C, uPSD3212CV
148/163
Table 127. CPLD Macrocell Asynchronous Clock Mode Timing (5V Devices)
Table 128. CPLD Macrocell Asynchronous Clock Mode Timing (3V Devices)
Symbol
Parameter
Conditions
Min
Max
PT
Aloc
Turbo
Off
Slew
Rate
Unit
f
MAXA
Maximum Frequency
External Feedback
1/(t
SA
+t
COA
)
38.4
MHz
Maximum Frequency
Internal Feedback (f
CNTA
)
1/(t
SA
+t
COA
–10)
62.5
MHz
Maximum Frequency
Pipelined Data
1/(t
CHA
+t
CLA
)
71.4
MHz
t
SA
Input Setup Time
7
+ 2
+ 10
ns
t
HA
Input Hold Time
8
ns
t
CHA
Clock Input High Time
9
+ 10
ns
t
CLA
Clock Input Low Time
9
+ 10
ns
t
COA
Clock to Output Delay
21
+ 10
– 2
ns
t
ARDA
CPLD Array Delay
Any macrocell
11
+ 2
ns
t
MINA
Minimum Clock Period
1/f
CNTA
16
ns
Symbol
Parameter
Conditions
Min
Max
PT
Aloc
Turbo
Off
Slew
Rate
Unit
f
MAXA
Maximum Frequency
External Feedback
1/(t
SA
+t
COA
)
21.7
MHz
Maximum Frequency
Internal Feedback (f
CNTA
)
1/(t
SA
+t
COA
–10)
27.8
MHz
Maximum Frequency
Pipelined Data
1/(t
CHA
+t
CLA
)
33.3
MHz
t
SA
Input Setup Time
10
+ 4
+ 20
ns
t
HA
Input Hold Time
12
ns
t
CHA
Clock High Time
17
+ 20
ns
t
CLA
Clock Low Time
13
+ 20
ns
t
COA
Clock to Output Delay
36
+ 20
– 6
ns
t
ARD
CPLD Array Delay
Any macrocell
25
+ 4
ns
t
MINA
Minimum Clock Period
1/f
CNTA
36
ns