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Rainbow-electronics AT17F080 Manual de usuario Pagina 10

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AT17F040/080
3039C–CNFG–11/02
Notes: 1. AC test lead = 50 pF.
2. Float delays are measured with 5 pF AC loads. Transition is measured ± 200 mV from steady-state active levels.
AC Characteristics
Symbol Description
AT17F040 AT17F080
UnitsMin Max Min Max
T
OE
(1)
OE to Data Delay
Commercial 50 50 ns
Industrial 55 55 ns
T
CE
(1)
CE to Data Delay
Commercial 60 55 ns
Industrial 60 60 ns
T
CAC
(1)
CLK to Data Delay
Commercial 75 55 ns
Industrial 80 60 ns
T
OH
Data Hold from CE, OE, or CLK
Commercial 0 0 ns
Industrial 0 0 ns
T
DF
(2)
CE or OE to Data Float Delay
Commercial 55 50 ns
Industrial 55 50 ns
T
LC
CLK Low Time
Commercial 20 20 ns
Industrial 20 20 ns
T
HC
CLK High Time
Commercial 20 20 ns
Industrial 20 20 ns
T
SCE
CE Setup Time to CLK
(to guarantee proper counting)
Commercial 35 20 ns
Industrial 40 25 ns
T
HCE
CE Hold Time from CLK
(to guarantee proper counting)
Commercial 0 0 ns
Industrial 0 0 ns
T
HOE
OE High Time
(guarantees counter is reset)
Commercial 20 20 ns
Industrial 20 20 ns
F
MAX
Maximum Input Clock Frequency
SEREN = 0
Commercial 10 10 MHz
Industrial 10 10 MHz
F
MAX
Maximum Input Clock Frequency
SEREN = 1
Commercial 33 33 MHz
Industrial 33 33 MHz
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