X24645
EQUIVALENT A.C. LOAD CIRCUIT
A.C. CONDITIONS OF TEST
Input Pulse Levels
VCC x 0.1 to VCC x 0.9
5V
Input Rise and
Fall Times
10ns
1.53KΩ
Input and Output
Timing Levels
OUTPUT
VCC X 0.5
2783 FRM T08
100pF
2783 ILL F16.1
A.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions, unless otherwise specified.)
Read & Write Cycle Limits
Symbol
Parameter
SCL Clock Frequency
Min.
Max.
Units
fSCL
0
100
KHz
TI
Noise Suppression Time
100
ns
Constant at SCL, SDA Inputs
tAA
SCL LOW to SDA Data Out Valid
0.3
4.7
3.5
µs
µs
tBUF
Time the Bus Must Be Free Before a
New Transmission Can Start
tHD:STA
tLOW
Start Condition Hold Time
Clock LOW Period
4
µs
µs
µs
µs
4.7
4
tHIGH
Clock HIGH Period
tSU:STA
Start Condition Setup Time
4.7
(for a Repeated Start Condition)
tHD:DAT
tSU:DAT
tR
Data In Hold Time
0
µs
ns
µs
ns
µs
Data In Setup Time
250
SDA and SCL Rise Time
SDA and SCL Fall Time
Stop Condition Setup Time
Data Out Hold Time
1
tF
300
tSU:STO
tDH
4.7
300
ns
2783 FRM T09.2
(4)
POWER-UP TIMING
Symbol
Parameter
Max.
Units
tPUR
Power-up to Read Operation
1
5
ms
tPUW
Power-up to Write Operation
ms
2783 FRM T10
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.
12
XICOR [ XICOR INC. ]
