參數(shù)資料
型號: LTC4301L
廠商: Linear Technology Corporation
英文描述: Hot Swappable 2-Wire Bus Buffer with Low Voltage Level Translation
中文描述: 熱插拔2線總線緩沖器低電壓電平轉(zhuǎn)換
文件頁數(shù): 4/12頁
文件大?。?/td> 220K
代理商: LTC4301L
4
LTC4301L
4301lf
PIU
CS (Pin 1):
The connection sense pin is a 1.4V threshold
digital input pin. For normal operation CS is grounded.
Driving CS above the 1.4V threshold isolates SDAIN from
SDAOUT and SCLIN from SCLOUT and asserts READY
low.
SCLOUT (Pin 2):
Serial Clock Output. Connect this pin to
the SCL bus on the card.
SCLIN (Pin 3):
Serial Clock Input. Connect this pin to SCL
on the bus backplane.
GND (Pin 4, 9):
Ground. Connect this pin to a ground plane
for best results. Exposed pad (DFN package) is ground.
READY (Pin 5):
The READY pin is an open drain N-channel
MOSFET output which pulls down when CS is high or
when the start-up sequence described in the Operation
section has not been completed. READY goes high when
CS is low and a start-up is complete.
SDAIN (Pin 6):
Serial Data Input. Connect this pin to the
SDA bus on the backplane.
SDAOUT (Pin 7):
Serial Data Output. Connect this pin to
the SDA bus on the card.
V
CC
(Pin 8):
Main Input Supply. Place a bypass capacitor
of at least 0.01
μ
F close to V
CC
for best results.
TYPICAL PERFOR U
I
CC
vs Temperature
Input – Output High to Low
Propagation Delay vs
Temperature
Connection Circuitry V
OUT
– V
IN
–50
–25
0
25
50
75
100
TEMPERATURE (
°
C)
T
4301 G02
100
80
60
40
20
0
V
CC
= 2.7V
V
CC
= 3.3V
V
CC
= 5.5V
C
IN
= C
OUT
= 100pF
R
PULLUPIN
= R
PULLUPOUT
= 10k
R
PULLUP
(
)
0
10,000
20,000
30,000
40,000
V
O
I
4301 G03
300
250
200
150
100
50
0
V
CC
= 3.3V
V
CC
= 5V
T
A
= 25
°
C
V
IN
= 0V
TEMPERATURE (
°
C)
–80
I
C
4.9
4.8
4.7
4.6
4.5
4.4
4.3
4.2
4.1
4.0
3.9
–40
0
20
100
4301 G01
–60
–20
40
60
80
V
CC
= 5.5V
V
CC
= 3.3V
V
CC
= 2.7V
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