AT17C256-10JC Atmel, AT17C256-10JC Datasheet - Page 9

• Manufacturer Part Number: AT17C256-10JC
• Description: IC SER CONFIG PROM 256K 20PLCC
• Manufacturer: Atmel

Specifications of AT17C256-10JC

• Programmable Type: Serial EEPROM
• Memory Size: 256Kb
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AC Characteristics for AT17C256
V
AC Characteristics for AT17C256 When Cascading
V
Notes:
Symbol
T
T
T
T
T
T
T
T
T
T
F
Symbol
T
T
T
T
F
CC
CC
OE
OH
OCK
OCE
OOE
CE
CAC
DF
LC
HC
SCE
HCE
HOE
MAX
CDF
MAX
= 5V ±5% Commercial/V
(3)
= 5V±5% Commercial/V
(2)
(2)
(3)
(2)
(2)
(2)
(2)
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.
Description
CLK to Data Float Delay
CLK to CEO Delay
CE to CEO Delay
RESET/OE to CEO Delay
MAX Input Clock Frequency
Description
OE to Data Delay
CE to Data Delay
CLK to Data Delay
Data Hold from CE, OE, or CLK
CE or OE to Data Float Delay
CLK Low Time
CLK High Time
CE Setup Time to CLK (to guarantee proper counting)
CE Hold Time from CLK (to guarantee proper counting)
OE High Time (guarantees counter is reset)
MAX Input Clock Frequency
CC
CC
= 5V ± 10% Ind./Mil.
= 5V ± 10% Ind./Mil.
12.5
Min
Min
20
20
35
20
10
0
0
Commercial
Commercial
Max
Max
30
45
50
50
50
35
35
30
Industrial/Military
Industrial/Military
12.5
Min
Min
20
20
40
20
10
0
0
Max
Max
35
45
55
50
50
40
35
35
(1)
(1)
Units
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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