CAT24C256 CATALYST [Catalyst Semiconductor], CAT24C256 Datasheet - Page 3

• Manufacturer Part Number: CAT24C256
• Description: 256-Kb I2C CMOS Serial EEPROM
• Manufacturer: CATALYST [Catalyst Semiconductor]

A.C. CHARACTERISTICS
V
notes:
() Test conditions according to “A.C. Test Conditions” table.
(2) Tested initially and after a design or process change that affects this parameter.
(3) t
A.C. TEST COnDITIOnS
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Input Levels
Input Rise and Fall Times
Input Reference Levels
Output Reference Levels
Output Load
CC
Symbol
t
PU
t
t
t
t
PU
= .8 V to 5.5 V, T
t
t
HD:DAT
SU:STO
HD:STA
SU:STA
SU:DAT
BUF
t
F
t
T
t
t
HIGH
t
LOW
t
t
R
F
is the delay between the time V
WR
(2), (3)
SCL
AA
DH
I
(2)
(2)
(2)
(2)
Parameter
Clock Frequency
Noise Suppression Time Constant at
SCL, SDA Inputs
SCL Low to SDA Data Out
Time the Bus Must be Free Before a
New Transmission Can Start
Start Condition Hold Time
Clock Low Period
Clock High Period
Start Condition Setup Time
Data In Hold Time
Data In Setup Time
SDA and SCL Rise Time
SDA and SCL Fall Time
Stop Condition Setup Time
Data Out Hold Time
Write Cycle Time
Power-up to Ready Mode
A
= -40°C to 85°C, unless otherwise specified.
(1)
0.2 x V
≤
0.3 x V
0.5 x V
Current Source: I
CC
50 ns
is stable and the device is ready to accept commands.
CC
CC
CC
, 0.7 x V
to 0.8 x V
OL
CC
CC
= 3 mA (V
3
0.25
Min
4.7
4.7
4.7
0.
1.8 V - 5.5 V
4
4
0
4
CC
≥
2.5 V); I
Max
00
0.
3.5
0.3

5

OL
=  mA (V
Min
.3
0.6
.3
0.6
0.6
0.
0.6
0.
2.5 V - 5.5 V
0
CC
< 2.5 V); C
Max
400
0.
0.9
0.3
0.3
5

L
= 00 pF
Doc No. 04, Rev. D
CAT24C256
units
kHz
ms
ms
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs