SMH4042 Datasheet, PDF (6/28 Pages) Summit Microelectronics, Inc. – Hot Swap™ Controller

SMH4042
MEMORY AC OPERATING CHARACTERISTICS
T_A = -40°C to +85°C
Symbol
Parameter
Conditions
fSCL
tLOW
tHIGH
tBUF
tSU:STA
tHD:STA
tSU:STO
tAA
tDH
tR
tF
tSU:DAT
tHD:DAT
TI
tWR
SCL Clock Frequency
Clock Low Period
Clock High Period
Bus Free Time
Start Condition Setup Time
Start Condition Hold Time
Stop Condition Setup Time
Clock Edge to Valid Output
Data Out Hold Time
SCL and SDA Rise Time
SCL and SDA Fall Time
Data In Setup Time
Data In Hold Time
Noise Filter SCL & SDA
Write Cycle Time
Before New Transmission
SCL low to Valid SDA (cycle n)
SCL low (cycle n+1) to SDA change
Noise Suppression
2.7V to 4.5V
Min Max
4.5V to 5.5V
Min Max Units
0
100
0
4.7
1.3
4.0
0.6
4.7
1.3
4.7
0.6
4.0
0.6
4.7
0.6
0.3 3.5 0.2
0.3
0.2
1000
300
250
100
0
0
100
5
400 KHz
ms
ms
ms
ms
ms
ms
0.9 ms
ms
300 ns
300 ns
ns
ns
100 ns
5
ms
2037 PGM T5.1
tR
SCL
tSU:SDA
SDA In
SDA Out
tHIGH tLOW
tF
tHD:SDA _tHD:DAT
tSU:DAT
tSU:STO
tAA
tDH
tBUF
2037 ILL11.0
2037 8.0 8/8/00
S
T
A
Master
R
T
SDA
Slave
S
T
Master
A
R
T
SDA
Slave
Typical Write Operation
AA
21
B
0
R
/
W
AA A A A A A A
76 5 4 3 2 1 0
DDDDDDDD
76543210
DD
76
A
A
A
C
C
C
K
K
K
Typical Read Operation
AA
21
B
0
R
/
W
A
A
C
C
K
K
DDDDDDDD DDDDDDDD DD
76543210 76543210 76
A
C
K
S
T
O
P
DD
10
A
C
K
S
T
O
P
DD
10
2037 ILL12.0
6