ACE24AC256E

Two-wire Serial EEPROM

VER 1.1

10

AC Characteristics

Symbol

Parameter

1.8V

2.5V~5.0V

Units

Min

Max

Min

Max

Clock Frequency, SCL

400

1000

kHz

Clock Pulse Width Low

1.3

0.6

µs

Clock Pulse Width High

0.6

0.3

µs

100

50

ns

Clock Low to Data Out Valid

0.9

0.55

µs

Time the bus must be free before a new

1.3

0.5

µs

Start Hold Time

0.6

0.25

µs

Start Setup Time

0.6

0.25

µs

Data In Hold Time

0

0

µs

Data In Setup Time

100

100

ns

0.3

0.3

µs

300

100

ns

Stop Setup Time

0.6

0.25

µs

Data Out Hold Time

50

50

ns

Vcc slew rate at power up

0.1

50

0.1

50

V/ms

Time required after VCC is stable before

the device can accept commands

100

100

µs

Minimum time at Vcc=0V between

power cycles

500

500

ms

Write Cycle Time (for 04B/16B)

5

5

ms

25℃, Page Mode, 3.3V

1,000,000

Write

Cycles

Notes: 1. This Parameter is expected by characterization but are not fully screened by test.