CAT34RC02_05 Datasheet, PDF (3/14 Pages) Catalyst Semiconductor – 2-kb I2C Serial EEPROM, Serial Presence Detect

CAT34RC02
A.C. CHARACTERISTICS
V_CC = 1.7 V to 5.5 V, unless otherwise specified.
Read & Write Cycle Limits
Symbol
Parameter
1.7 V - 5.5 V
2.5 V - 5.5 V
Min Max
Min
Max
Units
F_SCL
Clock Frequency
100
T_I(1)
Noise Suppression Time
100
Constant at SCL, SDA Inputs
t_AA
SCL Low to SDA Data Out
3.5
and ACK Out
t_BUF(1)
Time the Bus Must be Free Before 4.7
1.3
a New Transmission Can Start
t_HD:STA
Start Condition Hold Time
4
0.6
t_LOW
Clock Low Period
4.7
1.3
t_HIGH
t_SU:STA
d _tHD:DAT
e ^tSU:DAT
t_R(1)
u _tF(1)
tin ^tSU:STO
t_DH
Clock High Period
4
0.6
Start Condition Setup Time
4.7
0.6
(for a Repeated Start Condition)
Data In Hold Time
0
0
Data In Setup Time
250
100
SDA and SCL Rise Time
1
SDA and SCL Fall Time
300
Stop Condition Setup Time
4
0.6
Data Out Hold Time
100
100
n _{Power-Up Timing(1)(2)}
o Symbol
Parameter
t_PUR
c _tPUW
Power-up to Read Operation
Power-up to Write Operation
Dis ^{Write Cycle Limits}
Min
Typ
Symbol
Parameter
Min
Typ
400
kHz
100
ns
0.9
µs
t_µs
r_µs
a _µs
P µs
µs
ns
ns
0.3
µs
300
ns
µs
ns
Max
Units
1
ms
1
ms
Max
Units
t_WR
Write Cycle Time
5
ms
The write cycle time is the time elapsed between the
STOP command (following the write instruction) and the
completion of the internal write cycle. During the internal
write cycle, SDA is released by the Slave and the device
does not acknowledge external commands.
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) t_PUR and t_PUW are the delays required from the time V_CC is stable until the specified operation can be initiated.
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
Doc No. 1052, Rev. O