1840 查看數據表（PDF） - Linear Technology
零件编号
产品描述 (功能)
比赛名单
1840 Datasheet PDF : 12 Pages
| |||
LTC1840
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3V
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Digital Inputs SCL, SDA
VIH
Digital Input High Voltage
VIL
Digital Input Low Voltage
VLTH
Logic Threshold Voltage
ILEAK
Digital Input Leakage
CIN
Digital Input Capacitance
Digital Output SDA
(Note 2)
VCC = 5V and 0V, VIN = GND to VCC
(Note 2)
q 1.4
V
q
0.6
V
1
V
±1
µA
10
pF
VOL
Digital Output Low Voltage
Digital Output FAULT
IPULL-UP = 3mA
q
0.4
V
VOL
Digital Output Low Voltage
Digital Inputs TACHA, TACHB
IPULL-UP = 1mA
q
0.4
V
VIH
Digital Input High Voltage
VIL
Digital Input Low Voltage
ILEAK
Digital Input Leakage
Digital Input BLAST
VCC = 5V and 0V, VIN = GND to VCC
q 0.7VCC
q
V
0.3VCC
V
±1
µA
VLTH
Logic Threshold Voltage
VIHYST
Input Hysteresis
ILEAK
Digital Input Leakage
Address Inputs A0, A1
Measured on BLAST Falling Edge
(Note 2), Measured on Rising Edge
VCC = 5V and 0V, VIN = GND to VCC
0.95
1.0
1.05
V
20
mV
±1
µA
VIH
Input High Voltage
VIL
Input Low Voltage
IIN
Input Current
Timing Characteristics
fI2C
I2C Operating Frequency
t BUF
Bus Free Time Between
Stop and Start Condition
AX Shorted to GND or VCC, VCC = 5V
(Note 2)
(Note 2)
q 0.9VCC
q
0
4.7
V
0.1VCC
V
±100
µA
100
kHz
µs
thD, STA
Hold Time after (Repeated)
Start Condition
(Note 2)
4
µs
tsu, STA
Repeated Start Condition
Setup Time
(Note 2)
4.7
µs
tsu, STO
thD, DAT
tsu, DAT
t LOW
t HIGH
tf
tr
Stop Condition Setup Time
Data Hold Time
Data Setup Time
Clock Low Period
Clock High Period
Clock, Data Fall Time
Clock, Data Rise Time
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
4
µs
300
ns
250
ns
4.7
µs
4.0
µs
300
ns
1000
ns
Note 1: Absolute Maximum Ratings are those values beyond
which the life of a device may be impaired.
Note 2: Guaranteed by design not subject to test.
1840f
3
Share Link: 