CAT24C01B

3

Doc. No. 25085-00 7/99 S-1

A.C. CHARACTERISTICS

Read & Write Cycle Limits

Symbol

Parameter

1.8V, 2.5V

4.5V-5.5V

Min.

Max.

Min.

Max.

Units

Clock Frequency

100

400

kHz

Noise Suppression Time

100

100

ns

Constant at SCL, SDA Inputs

SCL Low to SDA Data Out

3.5

1

µs

and ACK Out

Time the Bus Must be Free Before

4.7

1.2

µs

a New Transmission Can Start

Start Condition Hold Time

4

0.6

µs

Clock Low Period

4.7

1.2

µs

Clock High Period

4

0.6

µs

Start Condition Setup Time

4.7

0.6

µs

(for a Repeated Start Condition)

Data In Hold Time

0

0

ns

Data In Setup Time

250

100

ns

SDA and SCL Rise Time

1

0.3

µs

SDA and SCL Fall Time

300

300

ns

Stop Condition Setup Time

4.7

0.6

µs

Data Out Hold Time

100

100

ns

Note:

(1) This parameter is tested initially and after a design or process change that affects the parameter.

The write cycle time is the time from a valid stop

condition of a write sequence to the end of the internal

program/erase cycle. During the write cycle, the bus

interface circuits are disabled, SDA is allowed to remain

high, and the device does not respond to its input.

Write Cycle Limits

Symbol

Parameter

Min.

Typ.

Max

Units

Write Cycle Time

10

ms

Symbol

Parameter

Max.

Units

Power-up to Read Operation

1

ms

Power-up to Write Operation

1

ms