LTC4308 LINER [Linear Technology], LTC4308 Datasheet - Page 4

• Manufacturer Part Number: LTC4308
• Description: Low Voltage, Level Shifting Hot Swappable 2-Wire Bus Buffer with Stuck Bus Recovery
• Manufacturer: LINER [Linear Technology]

LTC4308
ELECTRICAL CHARACTERISTICS
SYMBOL
Bus Stuck Low Timeout
t
Timing Characteristics
f
t
t
t
t
t
t
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: See “Propagation Delays” in the Operations section for a
discussion of t
capacitance.
temperature range, otherwise specifi cations are at T
4
TIMING DIAGRAMS
TIMEOUT
I2C,MAX
BUF
HD,STA
SU,STA
SU,STO
HD,DATI
SU,DAT
PHL
PARAMETER
Bus Stuck Low Timer
I
Bus Free Time Between Stop and Start Condition (Note 3)
Hold Time After (Repeated) Start Condition
Repeated Start Condition Set-Up Time
Stop Condition Set-Up Time
Data Hold Time Input
Data Set-Up Time
2
Rising and Falling Propagation Delays and Rise and Fall Times for SDAIN, SDAOUT and SCLIN, SCLOUT
C Maximum Operating Frequency
and t
SDAOUT/SCLOUT
PLH
SDAIN/SCLIN
as a function of pull-up resistance and bus
CONNECT
ENABLE
READY
t
PLH_EN
t
PLH_READY
t
ENABLE, CONNECT, READY Timing
PLH
A
Figure 1. Timing Diagrams
= 25°C. V
CONDITIONS
SDAOUT = SCLOUT = 0V
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
The
l
CC
denotes the specifi cations which apply over the full operating
= 3.3V, unless otherwise noted.
Note 3: Determined by design, not tested in production.
Note 4: Measure points are 0.3 • V
Note 5: I
Typical Performance Characteristics section.
Note 6: I
Note 7: All currents into pins are positive; all voltages are referenced to
GND unless otherwise specifi ed.
t
PHL
t
RISE
PULLUPAC
CC
test performed with connection circuitry active.
t
PHL_EN
varies with temperature and V
t
PHL_READY
t
RISE
4308 TD01
t
FALL
CC
l
and 0.7 • V
MIN
400
25
CC
CC
t
4308 TD02
FALL
.
voltage as shown in the
TYP
600
30
MAX
100
100
1.3
35
0
0
0
UNITS
4308f
kHz
ms
μs
ns
ns
ns
ns
ns