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参数资料
| 型号： | LTC4300-1IMS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/18页 |
| 文件大小： | 735K |
| 描述： | IC HOTSWAP 2WIRE BUS BUFFR 8MSOP |
| 标准包装： | 50 |
| 类型： | 热交换开关 |
| 应用： | 通用型缓冲器/总线扩展器 |
| 内部开关： | 是 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 管件 |
LTC4300-1/LTC4300-2
3
430012fb
For more information www.linear.com/LTC4300-1
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25癈. V
CC
= 2.7V to 5.5V, V
CC2
= 2.7V to 5.5V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
DIS
Disable Threshold Voltage
LTC4300-1, ENABLE Pin
0.1 " V
CC
0.5 " V
CC
V
I
EN
ENABLE Input Current
ENABLE from 0V to V
CC
, LTC4300-1
?.1
?
礎
t
PHL
ENABLE Delay, On-Off
LTC4300-1
100
ns
READY Delay, Off-On
LTC4300-1
10
ns
t
PLH
ENABLE Delay, Off-On
LTC4300-1
80
祍
READY Delay, On-Off
LTC4300-1
10
祍
I
OFF
READY OFF State Leakage Current
LTC4300-1
?.1
礎
V
OL
READY Output Low Voltage
I
PULLUP
= 3mA, LTC4300-1
?/DIV>
0.4
V
Rise Time Accelerators
I
PULLUPAC
Transient Boosted Pull-Up Current
Positive Transition on SDA, SCL, V
CC
= 2.7V ,
Slew Rate = 1.25V/祍 (Note 2),
LTC4300-2, ACC = 0.7 " V
CC2
, V
CC2
= 2.7V
1
2
mA
V
ACCDIS
Accelerator Disable Threshold
LTC4300-2
0.3 " V
CC2
0.5 " V
CC2
V
V
ACCEN
Accelerator Enable Threshold
LTC4300-2
0.5 " V
CC2
0.7 " V
CC2
V
I
VACC
ACC Input Current
LTC4300-2
?.1
?
礎
t
PDOFF
ACC Delay, On/Off
LTC4300-2
5
ns
Input-Output Connection
V
OS
Input-Output Offset Voltage
10k to V
CC
on SDA, SCL, V
CC
= 3.3V (Note 3),
LTC4300-2, V
CC2
= 3.3V, V
IN
= 0.2V
l
0
75
150
mV
f
SCL, SDA
Operating Frequency
Guaranteed by Design, Not Subject to Test
0
400
kHz
C
IN
Digital Input Capacitance
Guaranteed by Design, Not Subject to Test
10
pF
V
OL
Output Low Voltage, Input = 0V
SDA, SCL Pins, I
SINK
= 3mA, V
CC
= 2.7V ,
V
CC2
= 2.7V , LTC4300-2
l
0
0.4
V
I
LEAK
Input Leakage Current
SDA, SCL Pins = V
CC
= 5.5V ,
LTC4300-2, V
CC2
= 5.5V
?
礎
Timing Characteristics
f
I2C
I
2
C Operating Frequency
(Note 4)
0
400
kHz
t
BUF
Bus Free Time Between STOP and
START Condition
(Note 4)
1.3
祍
t
hD,STA
Hold Time After (Repeated) START
Condition
(Note 4)
0.6
祍
t
su,STA
Repeated START Condition Setup
Time
(Note 4)
0.6
祍
t
su,STO
STOP Condition Setup Time
(Note 4)
0.6
祍
t
hD, DAT
Data Hold Time
(Note 4)
300
ns
t
su, DAT
Data Setup Time
(Note 4)
100
ns
t
LOW
Clock LOW Period
(Note 4)
1.3
祍
t
HIGH
Clock HIGH Period
(Note 4)
0.6
祍
t
f
Clock, Data Fall Time
(Notes 4, 5)
20 + 0.1 " C
B
300
ns
t
r
Clock, Data Rise Time
(Notes 4, 5)
20 + 0.1 " C
B
300
ns
t
PHL,SKEW
High-to-Low Propagation Delay
Skew, SCL-SDA
LTC4300-1: V
CC
= 2.7V, V
CC
= 5.5V (Note 6)
l
0
?5
ns
LTC4300-2: V
CC
= 2.7V, V
CC2
= 5.5V;
V
CC
= 5.5V, V
CC2
= 2.7V (Note 6)
l
0
?5
ns
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