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ATF1502SL Scheda tecnica(PDF) 39 Page - ATMEL Corporation |
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ATF1502SL Scheda tecnica(HTML) 39 Page - ATMEL Corporation |
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39 / 69 page ![]() 39 ATF1508SE(L) 2401D–PLD–09/02 Notes: 1. See ordering Information for valid part numbers. 2. The t RPA parameter must be added to the tLAD,tLAC,tIC,tACL and tSEXP parameters for macrocells running in the reduced- power mode. 3. fCNT is the fastest 16-bit counter frequency available, using the local feedback when applicable, and a PIA fan-out of one logic block (16 macrocells). fCNT is also the Export Control Maximum flip-flop toggle rate, fTOG. 4. fACNT is the fastest 16-bit counter frequency available, using the internal array clock, local feedback when applicable and a PIA fan-out of one logic block (16 macrocells). 5. f MAX is the fastest available frequency for pipelined data. 6. For clocked applications and frequencies above f CRITICAL, OR, non-clocked applications with dormant times less than 1/fCRIT- ICAL, the device will achieve the speeds of the –10 column. See “Input Transition Detection/ Automatic Power Down” on page 8. t ZX2 Output Buffer Enable Delay (slow slew rate = OFF; VCCIO =3.3V; CL=35pF) 4.5 4.5 5.5 7.0 ns tZX3 Output Buffer Enable Delay (slow slew rate = ON; VCCIO =5Vor 3.3V; CL=35pF) 99 9 10.0 ns t XZ Output Buffer Disable Delay (C L= 5 pF) 4 4 5 6.0 ns t SU Register Setup Time 1.0 3.0 2.0 4.0 ns t H Register Hold Time 1.7 2.0 5.0 4.0 ns tFSU Register Setup Time of Fast Input 1.9 3.0 3.0 2.0 ns tFH Register Hold Time of Fast Input 0.6 0.5 0.5 1.0 ns tRD Register Delay 1.4 1.0 2.0 1.0 ns t COMB Combinatorial Delay 1.0 1.0 2.0 1.0 ns t IC Array Clock Delay 3.1 3.0 5.0 6.0 ns t EN Register Enable Time 3.0 3.0 5.0 6.0 ns tGLOB Global Control Delay 2.0 1.0 1.0 1.0 ns tPRE Register Preset Time 2.4 2.0 3.0 4.0 ns tCLR Register Clear Time 2.4 2.0 3.0 4.0 ns t UIM Switch Matrix Delay 1.4 1.0 1.0 2.0 ns t RPA (2) Reduced Power Adder 10 10 11 13 ns AC Characteristics (1) ATF1508SE(L) (Continued) Symbol Parameter SE -6 SE -7 SE -10 SEL -15 (6) Unit Min Max Min Max Min Max Min Max |
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