Rainbow Electronics ATV2500BQL - Manual (Page 9)

ATV2500B(Q)(L)
9
AC Waveforms
(1)
Combinatorial Outputs and Feedback
Note: 1. Timing measurement reference is 1.5V. Input AC driving levels are 0.0V and 3.0V, unless otherwise specified.
Register AC Characteristics, Product Term Clock
Symbol Parameter
-12 -15 -20 -25 -30
Units Min Max Min Max Min Max Min Max Min Max
t
COA
Clock to Output 12 15 20 22 25 ns
t
CFA
Clock to Feedback 3 7 5 12 10 16 12 18 13 20 ns
t
SIA
Input Setup Time 4 5 10 15 19 ns
t
SFA
Feedback Setup Time 4 5 8 10 10 ns
t
HA
Hold Time 3 5 10 12 13 ns
t
WA
Clock Width 5.5 7.5 11 14 15 ns
t
PA
Clock Period 11 15 22 28 30 ns
F
MAXA
External Feedback 1/(t
SIA
+ t
COA
) 62.5 50 33 27 23 MHz
Internal Feedback 1/(t
SFA
+ t
CFA
) 90 58 38 36 24 MHz
No Feedback 1/(t
PS
) 90 66 45 36 33 MHz
t
ARA
Asynchronous Reset/Preset
Recovery Time
3 8 12 15 18 ns