X24022
A.C. CONDITIONS OF TEST
EQUIVALENT A.C. LOAD CIRCUIT
Input Pulse Levels
V
CC
x 0.1 to V x 0.9
5.0V
CC
Input Rise and
Fall Times
1533Ω
10 ns
Output
Input and Output
Timing Levels
V
x 0.5
100pF
CC
3848 PGM T02
3848 FHD F18
A.C. CHARACTERISTICS LIMITS (Over recommended operating conditions unless otherwise specified)
Read & Write Cycle Limits
Symbol
Parameter
Min.
Max.
Units
f
SCL Clock Frequency
0
100
100
3.5
KHz
ns
µs
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs
SCL
T
Noise Suppression Time Constant at SCL, SDA Inputs
SCL Low to SDA Data Out Valid
Time the Bus Must Be Free Before a New Transmission Can Start
Start Condition Hold Time
I
t
t
t
t
t
t
t
t
t
t
t
t
0.3
4.7
4.0
4.7
4.0
4.7
0
AA
BUF
HD:STA
LOW
HIGH
SU:STA
HD:DAT
SU:DAT
R
Clock Low Period
Clock High Period
Start Condition Setup Time
Data In Hold Time
Data In Setup Time
250
SDA and SCL Rise Time
1
SDA and SCL Fall Time
300
F
Stop Condition Setup Time
Data Out Hold Time
4.7
SU:STO
DH
300
ns
3848 PGM T08
POWER-UP TIMING
Symbol
Parameter
Max.
Units
(4)
t
t
Power-Up to Read Operation
Power-Up to Write Operation
1
5
ms
ms
PUR
(4)
PUW
3848 PGM T09
Bus Timing
t
t
t
t
HIGH
LOW
R
F
SCL
t
t
t
t
t
SU:STA
HD:STA
HD:DAT
SU:DAT
SU:STO
SDA IN
t
t
t
AA
DH
BUF
SDA OUT
3848 FHD F04
Notes: (4) t
and t
are the delays required from the time V is stable until the specified operation can be initiated. These parameters
PUW CC
PUR
are periodically sampled and not 100% tested.
10
XICOR [ XICOR INC. ]
