AT24C256C_10 datasheet(5/22 Pages) ATMEL

Part #	AT24C256C

Description	serial electrically erasable and programmable read-only memory

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Manufacturer	ATMEL [ATMEL Corporation]

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Atmel AT24C256C

5

8568C–SEEPR–5/10

Table 3-3.

AC Characteristics (Industrial Temperature)

Applicable over recommended operating range from:

T

AI = − 40°C to +85°C, VCC = +1.7V to +5.5V, CL = 100 pF (unless otherwise noted). Test conditions are listed in Note 2.

Symbol

Parameter

1.7V

2.5, 5.0V

Units

Min

Max

Min

Max

fSCL

Clock Frequency, SCL

400

1000

kHz

tLOW

Clock Pulse Width Low

1.3

0.4

µs

tHIGH

Clock Pulse Width High

0.6

0.4

µs

tI

Noise Suppression Time(1)

100

50

ns

tAA

Clock Low to Data Out Valid

0.05

0.9

0.05

0.55

µs

tBUF

Time the bus must be free before a new transmission can start(1)

1.3

0.5

µs

tHD.STA

Start Hold Time

0.6

0.25

µs

tSU.STA

Start Set-up Time

0.6

0.25

µs

tHD.DAT

Data In Hold Time

0

µs

tSU.DAT

Data In Set-up Time

100

ns

tR

Inputs Rise Time(1)

0.3

µs

tF

Inputs Fall Time(1)

300

100

ns

tSU.STO

Stop Set-up Time

0.6

0.25

µs

tDH

Data Out Hold Time

50

ns

tWR

Write Cycle Time

5

ms

Endurance(1)

25°C, Page Mode, 3.3V

1,000,000

Write Cycles

Note:

1. This parameter is ensured by characterization and is not 100% tested

2. AC measurement conditions:

- R

L (connects to VCC): 1.3kΩ (2.5V, 5.5V), 10kΩ (1.7V)

- Input pulse voltages: 0.3V

CC to 0.7VCC

- Input rise and fall times:

≤ 50ns

- Input and output timing reference voltages: 0.5V

CC

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