AT17C020 Datasheet, PDF (8/12 Pages) ATMEL Corporation – 2-megabit FPGA Configuration EEPROM Memory

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AC Characteristics for AT17C020
V_CC = 5V ± 5% Commercial, V_CC = 5V ± 10% Industrial/Military
Commercial
Industrial/Military⁽¹⁾
Symbol Description
Min
Max
Min
Max
T_OE(2)
T_CE(2)
T_CAC(2)
OE to Data Delay
CE to Data Delay
CLK to Data Delay
30.0
35.0
45.0
45.0
50.0
50.0
T_OH
T_DF(3)
Data Hold From CE, OE or CLK
CE or OE to Data Float Delay
0.0
0.0
50.0
50.0
T_LC
CLK Low Time
20.0
20.0
T_HC
CLK High Time
20.0
20.0
T_SCE
CE Setup Time to CLK (to guarantee proper counting)
20.0
25.0
T_HCE
CE Hold Time from CLK (to guarantee proper counting)
0.0
0.0
T_HOE
OE High Time (guarantees counter is reset)
20.0
20.0
F_MAX
Notes:
MAX Input Clock Frequency
12.5
12.5
1. Preliminary specifications for military operating range only.
2. AC test load = 50 pF.
3. Float delays are measured with 5 pF AC loads. Transition is measured ±200 mV from steady state active levels.
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
AC Characteristics for AT17C020 When Cascading
V_CC = 5V± 5% Commercial/V_CC = 5V ± 10% Industrial/Military
Commercial
Industrial/Military⁽¹⁾
Symbol Description
Min
Max
Min
Max
T_CDF ⁽³⁾
T_OCK(2)
T_OCE(2)
T_OOE(2)
CLK to Data Float Delay
CLK to CEO Delay
CE to CEO Delay
RESET/OE to CEO Delay
50.0
50.0
35.0
40.0
40.0
80.0
30.0
30.0
F_MAX
Notes:
MAX Input Clock Frequency
12.5
12.5
1. Preliminary specifications for military operating range only.
2. AC test load = 50 pF.
3. Float delays are measured with 5 pF AC loads. Transition is measured ±200 mV from steady state active levels.
Units
ns
ns
ns
ns
MHz
8 AT17C/LV020