LTC6903 查看數據表（PDF） - Linear Technology
零件编号
产品描述 (功能)
生产厂家
LTC6903 Datasheet PDF : 14 Pages
| |||
LTC6903/LTC6904
Serial Port Electrical Characteristics The l denotes the specifications which apply over
the full operating temperature range, otherwise specifications are at TA = 25°C. V+ = 2.7V to 5.5V, GND = 0V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
VIH
Min High Level Input Voltage
SEN, SCK, SDI Pins
l
0.67 V+
V
VIL
Max Low Level Input Voltage
SEN, SCK, SDI Pins
l 0.33 V+
V
IIN
Digital Input Leakage
SEN, SCK, SDI Pins
l
10
µA
Timing Characteristics The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. V+ = 2.7V to 5.5V, GND = 0V, unless otherwise noted.
SYMBOL
PARAMETER
MIN TYP MAX
UNITS
LTC6903 (Notes 5, 6)
fSCK
Serial Port Clock Frequency
tCKHI
Min Clock HIGH Time
tCKLO
Min Clock LOW Time
tSU
Min Setup Time – SDI to SCK
tHLD
Min Hold Time – SCK to SDI
tLCH
Min Latch Time – SEN to SEN
tFCK
Min First Clock – SEN to SCK
LTC6904 (Notes 5, 6)
l
20
MHz
l
25
ns
l
25
ns
l
10
ns
l
10
ns
l
400
ns
l
20
ns
fSMB
SMBus Operating Frequency
tBUF
Bus Free Time Between STOP and START Condition
tHD,STA
Hold Time After (Repeated) START Condition
tSU,STA
Repeated START Condition Setup Time
tSU,STO
STOP Condition Setup Time
LTC6904 (Notes 5, 6)
l 10
l 4.7
l 4.0
l 4.7
l 4.0
100
kHz
µs
µs
µs
µs
tHD,DAT
tSU,DAT
tLOW
tHIGH
tf
tr
Data Hold Time
Data Setup Time
Clock LOW Period
Clock HIGH Period
Clock, Data Fall Time
Clock, Data Rise Time
l 300
l 250
l 4.7
l 4.0
l
l
ns
ns
µs
50
µs
300
ns
1000
ns
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: A heat sink may be required to keep the junction temperature
below the absolute maximum when the output is shorted indefinitely.
Note 3: The LTC6903CMS8, LTC6904CMS8, LTC6903IMS8 and
LTC6904IMS8 are guaranteed functional over the operating temperature
range of –40°C to 85°C.
Note 4: The LTC6903CMS8 and LTC6904CMS8 are guaranteed to meet
the specified performance limits over the 0°C to 70°C temperature range
and are designed, characterized and expected to meet the specified
performance from –40°C to 85°C but are not tested or QA sampled
at these temperatures. The LTC6903IMS8 and LTC6904IMS8 are
guaranteed to meet the specified performance limits over the –40°C to
85°C temperature range. The LTC6903HMS8 and LTC6904HMS8 are
guaranteed to meet the specified performance limits over the –40°C to
125°C temperature range. The LTC6904MPMS8 is guaranteed to meet the
specified performance limits over the –55°C to 125°C temperature range.
Note 5: All values are referenced to VIH and VIL levels.
Note 6: Guaranteed by design and not subject to test.
Note 7: Parts with tighter frequency accuracy are available. Consult LTC
Marketing for details.
69034fe
4
Share Link: 