X24022
A.C. CONDITIONS OF TEST
Input Pulse Levels
Input Rise and
Fall Times
Input and Output
Timing Levels
V
CC
x 0.1 to V
CC
x 0.9
10 ns
Output
EQUIVALENT A.C. LOAD CIRCUIT
5.0V
1533Ω
V
CC
x 0.5
3848 PGM T02
100pF
3848 FHD F18
A.C. CHARACTERISTICS LIMITS
(Over recommended operating conditions unless otherwise specified)
Read & Write Cycle Limits
Symbol
f
SCL
T
I
t
AA
t
BUF
t
HD:STA
t
LOW
t
HIGH
t
SU:STA
t
HD:DAT
t
SU:DAT
t
R
t
F
t
SU:STO
t
DH
Parameter
SCL Clock Frequency
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
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
Min.
0
0.3
4.7
4.0
4.7
4.0
4.7
0
250
Max.
100
100
3.5
Units
KHz
ns
µs
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs
ns
3848 PGM T08
1
300
4.7
300
POWER-UP TIMING
Symbol
t
PUR(4)
t
PUW(4)
Bus Timing
tF
SCL
tSU:STA
SDA IN
tAA
SDA OUT
3848 FHD F04
Parameter
Power-Up to Read Operation
Power-Up to Write Operation
Max.
1
5
Units
ms
ms
3848 PGM T09
tHIGH
tLOW
tR
tHD:STA
tHD:DAT
tSU:DAT
tSU:STO
tDH
tBUF
Notes:
(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.
10
XICOR [ XICOR INC. ]
