15
2321H–CNFG–03/06
AT17LV65/128/256/512/010/002/040
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.
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.
19. AC Characteristics
V
CC
= 5V ± 5% Commercial; V
CC
= 5V ± 10% Industrial
Symbol Description
AT17LV65/128/256 AT17LV512/010/002/040
Units
Commercial Industrial Commercial Industrial
Min Max Min Max Min Max Min Max
T
OE
(1)
OE to Data Delay 30 35 30 35 ns
T
CE
(1)
CE to Data Delay 45 45 45 45 ns
T
CAC
(1)
CLK to Data Delay 50 55 50 50 ns
T
OH
Data Hold from CE, OE, or CLK 0 0 0 0 ns
T
DF
(2)
CE or OE to Data Float Delay 50 50 50 50 ns
T
LC
CLK Low Time 20 20 20 20 ns
T
HC
CLK High Time 20 20 20 20 ns
T
SCE
CE Setup Time to CLK (to guarantee proper
counting)
35 40 20 25 ns
T
HCE
CE Hold Time from CLK (to guarantee proper
counting)
0000 ns
T
HOE
OE High Time (guarantees counter is reset) 20 20 20 20 ns
F
MAX
Maximum Clock Frequency 12.5 12.5 15 15 MHz
20. AC Characteristics when Cascading
V
CC
= 5V ± 5% Commercial; V
CC
= 5V ± 10% Industrial
Symbol Description
AT17LV65/128/256 AT17LV512/010/002/040
Units
Commercial Industrial Commercial Industrial
Min Max Min Max Min Max Min Max
T
CDF
(2)
CLK to Data Float Delay 50 50 50 50 ns
T
OCK
(1)
CLK to CEO Delay 35403540ns
T
OCE
(1)
CE to CEO Delay 35353535ns
T
OOE
(1)
RESET/OE to CEO Delay 30353030ns
F
MAX
Maximum Clock Frequency 10 10 12.5 12.5 MHz
