
X24C04
Characteristics subject to change without notice. 9 of 13
REV 1.1 7/12/00
www.xicor.com
NOT RECOMMENDED
FOR NEW DESIGNS
A.C. CONDITIONS OF TEST EQUIVALENT A.C. LOAD CIRCUIT
Input pulse levels V
CC
x 0.1 to V
CC
x 0.9
Input rise and fall times 10 ns
Input and output timing levels V
CC
x 0.5
5.0V
1533Ω
100pF
Output
A.C. CHARACTERISTICS (over recommended operating conditions unless otherwise specified)
Read & Write Cycle Limits
POWER-UP TIMING
Note: (4) t
PUR
and t
PUW
are the delays required from the time V
CC
is stable until the specified operation can be initiated. These parameters
are periodically sampled and not 100% tested.
Symbol Parameter Min. Max. Unit
f
SCL
SCL clock frequency 0 400 kHz
T
I
Noise suppression time constant at SCL, SDA inputs 50 ns
td SCL low to SDA data out valid 0.1 0.9 µs
t
BUF
Time the bus must be free before a new transmission can start 1.2 µs
t
HD:STA
Start condition hold time 0.6 µs
t
LOW
Clock low period 1.2 µs
t
HIGH
Clock high period 0.6 µs
t
SU:STA
Start condition setup time (for a repeated start condition) 0.6 µs
t
HD:DAT
Data In hold time 0 µs
t
SU:DAT
Data In setup time 100 ns
t
R
SDA and SCL rise time 300 µs
t
F
SDA and SCL fall time 300 ns
t
SU:STO
Stop condition setup time 0.6 µs
t
DH
Data out hold time 50 300 ns
Symbol Parameter Max. Unit
t
PUR
(4)
Power-up to read operation 1 ms
t
PUW
(4)
Power-up to write operation 5 ms
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